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I
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
Step 1. Determine the peak torque for your drive. This is usually the motor starting torque, but may also be any unusual momentary or shock load which may occur during normal operation.
Step 2. Determine the largest pulley diameters that can be utilized, considering the space limitations and drive ratio of your system. This helps to increase the torque capacity of the drive and extend the service life of the belt.
Step 3.Calculate the teeth in mesh (T.I.M.) using Formula 5 in Table 1. Consult Table 2 for the teeth in mesh factor. Divide the peak torque (from Step 1) by the T.I.M. factor to deter-mine the design torque by using Formula 7 in Table 1.
Step 4. Calculate the belt pitch length based on the design center distance of your drive using Formula 2 in Table 1.
Step 5. Divide the belt pitch length by the tooth pitch selected and round the result to the nearest whole number. This is the number of teeth on the belt for your application. Adjust the nominal center distance of your drive design to match the belt using Formula 1 in Table 1.
Step 6. Using Formula 6 in Table 1, calculate the effective tension (Te) on the drive using the pitch radius and design torque of the smallest loaded pulley in the system.
Step 7. (a) Select the strength factor for your application from Table 3. Divide the effective tension from Step 6 by the strength factor to determine the required break strength for the belt design. (b) Multiply by 2 to represent a double span break. Consult Table 4 to determine the required reinforcement type and belt width. The value listed in the table must be greater than the design break strength.
Step 8. Using the torque capacity graph, select a belt width that is capable of handling the design torque with the selected pulley size. Note: This belt width may be different from the width selected in Step 7. The belt width required for the system will be the wider of the two.
Step 9. Special Note: Limiting torque values must be multiplied by 0.45 for fiberglass reinforced belts.
IMPORTANT NOTEAlways incorporate a means of adjusting center distanceto allow for pitch length manufacturing tolerance.
ENGINEERING FORMULAS • Table 1
No. Unknown Where Formula
1
2
3
4
5
6
7
Center Distance (using unequal size pulleys for driveR and driveN)(approximation formula)
Belt Pitch Length(approximation formula)
Number of Teeth on Belt
Belt Speed
Teeth in Mesh
Effective Tension
Design Torque
CD = center distance mm (in.)PL = belt pitch length mm (in.)D = large pulley pitch dia. mm (in.)d = small pulley pitch dia. mm (in.)PL = belt pitch length mm (in.)CD = center distance mm (in.)D = large pulley pitch dia. mm (in.)d = small pulley pitch dia. mm (in.)
NB = number of teeth on beltPL = belt pitch length mm (in.)P = tooth pitch mm (in.)
V = belt speed mm/sec. (in./sec.)Dr = pitch diameter of driver pulley mm (in.)rpm = speed of driver 1/min.
T.I.M. = teeth in meshNd = number of teeth on small pulleyCD = center distance mm (in.)D = large pulley pitch dia. mm (in.)d = small pulley pitch dia. mm (in.)
Te = effective tension N (lbf)Td = design torque N • mm (lbf • in.)r = pulley radius mm (in.)
Td = design torque N • mm (lbf • in.)Tpk = peak torque N • mm (lbf • in.)
CD = b + b 2 - [8 x (D - d )2]
8
b = (2 x PL) - [ x (D + d )]
PL = (2 x CD) + [1.57 x (D + d )] + (D - d )2
(4 x CD )
NB = PLP
V =DR x x rpm
60
T.I.M. = 0.5 - Nd[ ( (D - d )(6 x CD ))]
Te =Td
r
Td =Tpk
T.I.M. factor
DESIGNING A MINIATURE BELT DRIVE
2-18
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
ENGINEERING FORMULAS • Table 2 - Teeth in Mesh Factor
Teeth in Mesh on Drive T.I.M. Factor6 or more
5432
1.00.80.60.40.2
ENGINEERING FORMULAS • Table 3 - Strength Factor
Drive Description Examples Strength Factor Critical Positioning Tolerance and Accuracy
Pen Plotter, Printers andPick and Place Robots
High Positioning Toleranceand Accuracy
Medical Equipment, Paper Handlingand Security Cameras
Low Positioning Toleranceand Accuracy
Home Appliances, Currency Equipmentand Light Load Unidirectional Drives
0.02
0.10
0.20
ENGINEERING FORMULAS • Table 4 - Breaking Strength
Belt Width Kevlar N (lbf) Fiberglass N (lbf) 3 mm6 mm
905 (205) 1865 (420)
485 (110)995 (225)
5(0.197)
10(0.394)
15(0.591)
20(0.787)
25(0.984)
30(1.181)
0
50 0.44
0.89
1.33
1.77
2.21
2.66
100
200
250
300
150
PITCH DIAMETER mm (in.)
LIM
ITIN
G T
ORQ
UE
(N •
mm
)
LIM
ITIN
G T
ORQ
UE
(lbf •
in.)
3 mm KEVLAR
TORQUE CAPACITYwith Kevlar Cords
NOTE: Multiply limiting torque values by 0.5 when selecting fiberglass reinforced belts
6 mm KEVLAR
DESIGNING A MINIATURE BELT DRIVE
2-19
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
NOTE: Dimensions in ( ) are inch.
METRIC COMPONENTCATALOG NUMBER
No. ofGrooves
Code
A 6 B 1 8 M
3 (.118) 6 (.236)
030060
WidthCode
Belt Widthmm
METRIC COMPONENTCATALOG NUMBER
No. ofGrooves
Code
A 6 G 1 8 M
3 (.118) 6 (.236)
030060
WidthCode
Belt Widthmm
BELT WIDTH PITCH LINE
0.97(.038)
1(.0394)
0.41(.016)
0.51(.020)
Polyurethane Belt with Fiberglass Cords:
Polyurethane Belt with Kevlar Cords:
GrooveCode mm Inch
Pitch Length
220230240255275300310320324375559
220230240255275300310320324375559
8.661 9.0559.449
10.04010.82711.81112.20512.59912.75614.76422.008
GrooveCode
091094125128140175185190195197200210
mm Inch
Pitch Length
91 94125128140175185190195197200210
3.5833.7014.9215.0395.5126.8907.2837.4807.6777.7567.8748.268
BELT WIDTHSMETRIC - 3 & 6 mm
MATERIAL: Body - PolyurethaneCords - Kevlar or Fiberglass
OPERATING TEMPERATURE:-30°C to +85°C (-22°F to +185°F)
SPECIFICATIONS:Breaking Strength (Double Span)Kevlar: 300 N per 1 mm (214 lbf per 1/8 in.)Fiberglass: 165 N per 1 mm (117 lbf per 1/8 in.)Not representative of the load carrying capacityof the belt; see the technical section.
MODIFICATIONS:Special Widths - cut to size fromsleeves available from stock.
Pulleys are available withmetric standards.
FHT®-1 MINIATURE TIMING BELTS • 1 mm PITCH
GrooveCode mm Inch
Pitch Length
142145190275300386705
142145190275300386705
5.5915.7097.480
10.82711.81115.19727.756
*
*
* To be discontinued when present stock is depleted.
FHT® Registered trademark of Fenner PrecisionFor Timing Pulleys see: A 6A18M... 2-20
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
NOTE: Dimensions in ( ) are inch.
METRIC COMPONENTCATALOG NUMBER *
No. ofGrooves
Code
A 6 B 1 8 M S
3 (.118) 6 (.236)
030060
WidthCode
Belt Widthmm
BELT WIDTH PITCH LINE
0.97(.038)
1(.0394)
0.41(.016)
0.51(.020)
METRIC COMPONENTCATALOG NUMBER *
No. ofGrooves
Code
A 6 G 1 8 M S
3 (.118) 6 (.236)
030060
WidthCode
Belt Widthmm
Polyurethane Belt with Fiberglass Cords:
GrooveCode mm Inch
Pitch Length
Polyurethane Belt with Kevlar Cords:
SPECIAL SIZESMETRIC - 3 & 6 mm
MATERIAL: Body - PolyurethaneCords - Kevlar or Fiberglass
OPERATING TEMPERATURE: -30°C to +85°C (-22°F to +185°F)
SPECIFICATIONS:Breaking Strength (Double Span)Kevlar: 300 N per 1 mm (214 lbf per 1/8 in.)Fiberglass: 165 N per 1 mm (117 lbf per 1/8 in.)Not representative of the load carrying capacityof the belt; see the technical section.
MODIFICATIONS:Special Widths - cut to size fromsleeves available from stock.
FHT®-1 MINIATURE TIMING BELTS • 1 mm PITCH
996 996 39.213
GrooveCode
091105148156165188202205225
mm Inch
Pitch Length
91105148156165188202205225
3.5834.1345.8276.1426.4967.4027.9538.0718.858
* To be discontinued when present stock is depleted.
* To be discontinued when present stock is depleted.
FHT® Registered trademark of Fenner PrecisionFor Timing Pulleys see: A 6A18M... 2-21
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ØD1 ØD
3.7
36
36
L6.7
Ød ØD2
SET SCREW
LSET
SCREW
ØD2 Ød ØD
Fig. 1 Fig. 2
ØD1
3.7
ØD
6.73
6L
ØD2
SET SCREW
Ød
Fig. 3
Continued on the next page
No.of
Grooves
182020212122222424252528283030353540404545
505560657075
505560657075
5.73 6.37 6.37 6.68 6.68 7 7 7.64 7.64 7.96 7.96 8.91 8.91 9.55 9.5511.1411.1412.7312.7314.3214.32
15.9217.5119.120.6922.2823.87
15.9217.5119.120.6922.2823.87
5.38 6.01 6.01 6.33 6.33 6.65 6.65 7.28 7.28 7.6 7.6 8.56 8.56 9.19 9.1910.7910.7912.3812.3813.9713.97
15.5617.1518.7420.3321.9323.52
15.5617.1518.7420.3321.9323.52
9 9 9 9 9 9 912.712.712.712.712.712.712.712.713.513.514.714.717.417.4
20.720.72425.425.426
——————
223232334343434343434
445555
445555
9 9 9 9 9 9 912.712.712.712.712.712.712.712.713.513.514.914.917.417.4
9.5 9.513131314
9.5 9.513131314
11.211.211.211.211.211.211.211.211.211.211.211.211.211.211.211.211.211.211.211.211.2
12.712.712.712.712.712.7
12.712.712.712.712.712.7
M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2
M2M2
M2.5M2.5M2.5M2.5
M2M2
M2.5M2.5M2.5M2.5
P.D.D
Dia.+0.05
0
D1
Dia.± 0.04
LLength
± 0.4
D2
HubDia.± 0.4
d Bore Dia.
+0.025 0
SetScrewCatalog Number
METRIC COMPONENT
A 6A18M018DF3002A 6A18M020DF3002A 6A18M020DF3003A 6A18M021DF3002A 6A18M021DF3003A 6A18M022DF3002A 6A18M022DF3003A 6A18M024DF3003A 6A18M024DF3004A 6A18M025DF3003A 6A18M025DF3004A 6A18M028DF3003A 6A18M028DF3004A 6A18M030DF3003A 6A18M030DF3004A 6A18M035DF3003A 6A18M035DF3004A 6A18M040DF3003A 6A18M040DF3004A 6A18M045DF3003A 6A18M045DF3004
A 6A18M050DF3004A 6A18M055DF3004A 6A18M060DF3005A 6A18M065DF3005A 6A18M070DF3005A 6A18M075DF3005
A 6A18M050NF3004A 6A18M055NF3004A 6A18M060NF3005A 6A18M065NF3005A 6A18M070NF3005A 6A18M075NF3005
Fig. 1
Fig. 2
Fig. 3
FOR BELTS 3 mm WIDEDOUBLE FLANGE AND NO FLANGE MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
FHT®-1 MINIATURE TIMING BELT PULLEYS • 1 mm PITCH
NOTE: Pulleys with 18 to 45 grooves have 1 set screw; others have 2 at 90°.
For FHT®-1 Miniature Timing Belts see: A 6B18M... and A 6G18M...2-25
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
No.of
Grooves
182020212122222424252528283030353540404545
505560657075
505560657075
5.73 6.37 6.37 6.68 6.68 7 7 7.64 7.64 7.96 7.96 8.91 8.91 9.55 9.5511.1411.1412.7312.7314.3214.32
15.9217.5119.120.6922.2823.87
15.9217.5119.120.6922.2823.87
5.38 6.01 6.01 6.33 6.33 6.65 6.65 7.28 7.28 7.6 7.6 8.56 8.56 9.19 9.1910.7910.7912.3812.3813.9713.97
15.5617.1518.7420.3321.9323.52
15.5617.1518.7420.3321.9323.52
9 9 9 9 9 9 912.712.712.712.712.712.712.712.713.513.514.714.717.417.4
20.720.72425.425.426
——————
223232334343434343434
445555
445555
9 9 9 9 9 9 912.712.712.712.712.712.712.712.713.513.514.914.917.417.4
9.5 9.513131314
9.5 9.513131314
14.214.214.214.214.214.214.214.214.214.214.214.214.214.214.214.214.214.214.214.214.2
15.715.715.715.715.715.7
15.715.715.715.715.715.7
M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2M2
M2M2
M2.5M2.5M2.5M2.5
M2M2
M2.5M2.5M2.5M2.5
P.D.D
Dia.+0.05
0
D1
Dia.± 0.04
LLength
± 0.4
D2
HubDia.± 0.4
d Bore Dia.
+0.025 0
SetScrewCatalog Number
METRIC COMPONENT
A 6A18M018DF6002A 6A18M020DF6002A 6A18M020DF6003A 6A18M021DF6002A 6A18M021DF6003A 6A18M022DF6002A 6A18M022DF6003A 6A18M024DF6003A 6A18M024DF6004A 6A18M025DF6003A 6A18M025DF6004A 6A18M028DF6003A 6A18M028DF6004A 6A18M030DF6003A 6A18M030DF6004A 6A18M035DF6003A 6A18M035DF6004A 6A18M040DF6003A 6A18M040DF6004A 6A18M045DF6003A 6A18M045DF6004
A 6A18M050DF6004A 6A18M055DF6004A 6A18M060DF6005A 6A18M065DF6005A 6A18M070DF6005A 6A18M075DF6005
A 6A18M050NF6004A 6A18M055NF6004A 6A18M060NF6005A 6A18M065NF6005A 6A18M070NF6005A 6A18M075NF6005
ØD1 ØD ØD
9.79.7
6.7
36
36
L L
Ød ØD2 ØD2
SET SCREW
SET SCREW
Ød
LSET
SCREW
ØD2 Ød ØD
Fig. 1 Fig. 2 Fig. 3
ØD1
6.736
NOTE: Pulleys with 18 to 45 grooves have 1 set screw; others have 2 at 90°.
For FHT®-1 Miniature Timing Belts see: A 6B18M... and A 6G18M...
Continued from the previous page
Fig. 1
Fig. 2
Fig. 3
FOR BELTS 6 mm WIDEDOUBLE FLANGE AND NO FLANGE MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
FHT®-1 MINIATURE TIMING BELT PULLEYS • 1 mm PITCH
2-26
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM BELT WIDTHSMETRIC - 3, 6 & 9 mmHIGH TORQUE CAPACITYVERY LOW NOISECLEAN OPERATIONMINIMAL BACKLASHCOMPACT DRIVE
MATERIAL: Body - Polyurethane, BlackCords - Kevlar or FiberglassBacking - Textured
OPERATING TEMPERATURE:-30°C to +85°C (-22°F to +185°F)
SPECIFICATIONS:Breaking Strength (Double Span)Kevlar: 364 N per 1 mm (260 lbf per 1/8 in.) Belt WidthFiberglass: 168 N per 1 mm (120 lbf per 1/8 in.) Belt Width
MODIFICATIONS:Special Widths - cut to size fromsleeves available from stock.
FHT®-2 TIMING BELTS • 2 mm PITCH
NOTE: Dimensions in ( ) are inch.
BELT WIDTH
Fig. 1
Fig. 2BELT WIDTH
PITCH LINE
PITCH LINE
1.47(.058)
1.47(.058)
2.00(.0787)
2.00(.0787)
1.25(.049)
1.28(.051)
0.89(.035)
0.89(.035)
0.76(.030)
70.6 (100)
LIM
ITIN
G T
ORQ
UE
N-c
m (o
z. in
.) 63.5 (90)
56.5 (80)
49.4 (70)
42.4 (60)
35.3 (50)
28.2 (40)
21.2 (30)
14.1 (20)
7.1 (10)
2.54(.1)
5.08(.2)
7.62(.3)
10.16(.4)
15.24(.6)
17.78(.7)
20.32(.8)
22.86(.9)
25.4(1.0)
27.94(1.1)
12.7(.5)
00
9.5 (.375)
6.4 (.250)
4.8 (.188)
3.2 (.125)
FHT®-2 TORQUE CAPACITY AT VARIOUS WIDTHS CONTAINING FR-17 KEVLAR® @ 50 T.P.I.
PITCH DIAMETER mm (in.)
FHT® Registered trademark of Fenner PrecisionFor Timing Pulleys see: A 6D51M..., A 6A51M..., A 6Z51M..., A 6L51M..., A 6D51-..., A 6A51-..., A 6Z51..., A 6L51-...
2-26A
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
METRIC COMPONENTCATALOG NUMBER
No. ofGrooves
Code
A 6 B 1 9 M
GrooveCode
GrooveCode
050082085090097110111136140144160175185204210220
049065070075080084086095098100105115120130132135145150155165170190192200245250290
mm mmInch Inch
Pitch Length Pitch Length
100164170180194220222272280288320350370408420440
98130140150160168172190196200210230240260264270290300310330340380384400490500580
3.946.466.697.097.648.668.74
10.7111.0211.3412.6013.7814.5716.0616.5417.32
3.865.125.515.916.306.616.777.487.727.878.279.069.45
10.2410.3910.6311.4211.8112.2012.9913.3914.9615.1215.7519.2919.6922.83
METRIC COMPONENTCATALOG NUMBER
No. ofGrooves
Code
A 6 G 1 9 M
Polyurethane Belt with Fiberglass Cords:
Polyurethane Belt with Kevlar Cords:
FHT®-2 TIMING BELTS • 2 mm PITCH
369
030060090
WidthCode
Belt Widthmm
369
030060090
WidthCode
Belt Widthmm
Fig. 1 Fig. 2
GrooveCode
083089110125
mm Inch
Pitch Length
166178220125
6.547.018.669.84
Fig. 1
GrooveCode
090165180182
mm Inch
Pitch Length
180330360364
7.0912.9914.1714.33
Fig. 2
FHT® Registered trademark of Fenner PrecisionFor Timing Pulleys see: A 6D51M..., A 6A51M..., A 6Z51M..., A 6L51M..., A 6D51-..., A 6A51-..., A 6Z51..., A 6L51-...
2-26B
Metric
0 10
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GT® 2 TIMING BELT PULLEYS • 2 mm PITCH
FOR BELTS UP TO 6 mm WIDEFAIRLOC® HUBDOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATION: D Tolerance: 15 to 40 grooves is +0.051/0 45 to 80 grooves is +0.076/0 90 to 120 grooves is +0.102/0
Other sizes available on special order.
Catalog Number
METRIC COMPONENT
DDia.
CapScrew
lHubProj.
D1
Dia.± 0.4
D2
Hub± 0.4
P.D.No.of
Grooves
LLength
± 0.4
A 6D51M015DF0605A 6D51M016DF0605A 6D51M018DF0605A 6D51M020DF0605A 6D51M022DF0605A 6D51M024DF0606A 6D51M025DF0606A 6D51M028DF0606A 6D51M030DF0606A 6D51M032DF0606
A 6D51M036DF0606A 6D51M040DF0606A 6D51M045DF0606A 6D51M048DF0606A 6D51M050DF0606A 6D51M060DF0606
A 6D51M060NF0606A 6D51M072NF0606A 6D51M080NF0608A 6D51M090NF0608A 6D51M100NF0608A 6D51M120NF0610
dBore+0.025
0
9.610.211.512.71415.315.917.819.120.4
2325.528.630.631.838.2
38.245.95157.363.776.4
9 9.71112.213.514.815.417.318.619.9
22.42528.13031.337.7
37.745.350.456.863.275.9
14.114.716.117.418.820.120.722.72425.4
28.130.73436.137.343.9
—
14.3
17.5
17.5
18.3
19.1
14.7
15.9
15.9
19.1
25.4
6
7.5
7.5
7.9
9.5
M2
M2.5
M2.5
M2.5
M3
5
6
6
6
8
10
15161820222425283032
364045485060
60728090
100120
Fig. 1
Fig. 2
ØD2
ØD
ØD2
ØD1
L
ØD2
Ød
ØD
Fig. 1 Fig. 2 Fig. 3
ØD1
L9.5 l
CAP SCREW
Ød
CAP SCREW
l
7.4
Ød
ØD
7.4
L
CAP SCREW
l
Fig. 3
2-142
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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Fig.No. N
o. o
fG
roov
es
11111212121212121222222222222222
1213141516171718181919202021212222242526283032364042444548505660
7.6 8.3 8.9 9.610.210.810.811.511.512.312.312.712.713.413.4141415.315.916.617.819.120.42325.526.72828.630.631.835.738.2
7.1 7.8 8.4 9 9.710.310.3111111.611.612.212.212.912.913.513.514.815.416.117.318.619.922.42526.227.528.13031.335.237.7
12.212.813.514.114.716.116.116.116.116.116.117.417.4181818.818.820.120.721.322.72425.428.130.73233.43436.137.34043.9
33344464646464646666666666666666
–––––
6.6–
6.6–
6.6–
6.6–
6.6–
6.6–
6.66.66.66.66.66.66.677777777
12.212.813.514.114.77.9
16.17.9
16.17.9
16.19.2
17.49.9
18.89.9
18.811.211.912.412.513.915.217.219.220.521.822.923.823.826.231
11.111.111.111.111.112.311.112.311.112.311.112.311.112.311.112.111.113.113.113.113.113.113.113.113.513.513.513.513.513.513.513.5
666665.665.665.665.665.665.666.46.46.46.46.46.46.46.46.46.46.46.46.46.46.4
2.82.82.82.82.82.82.82.82.82.82.82.82.82.82.82.82.83.23.23.23.23.23.23.23.23.23.23.23.23.23.23.2
M2M2M2
M2.5M2.5M2.5M3
M2.5M3
M2.5M3
M2.5M3
M2.5M3
M2.5M3M3M3M3M3M3M4M4M4M4M4M4M4M4M4M4
P.D.D
Dia.+0.05
D1
Dia.± 0.04
SBody A
LLgth.± 0.4
D2
HubDia.± 0.4
lHubProj.
d Bore+0.025 0
SetScrewCatalog Number
METRIC COMPONENT
A 6A51M012DF0303A 6A51M013DF0303A 6A51M014DF0303A 6A51M015DF0304A 6A51M016DF0304A 6A51M017DF0304A 6A51M017DF0306A 6A51M018DF0304A 6A51M018DF0306A 6A51M019DF0304A 6A51M019DF0306A 6A51M020DF0304A 6A51M020DF0306A 6A51M021DF0304A 6A51M021DF0306A 6A51M022DF0304A 6A51M022DF0306A 6A51M024DF0306A 6A51M025DF0306A 6A51M026DF0306A 6A51M028DF0306A 6A51M030DF0306A 6A51M032DF0306A 6A51M036DF0306A 6A51M040DF0306A 6A51M042DF0306A 6A51M044DF0306A 6A51M045DF0306A 6A51M048DF0306A 6A51M050DF0306A 6A51M056DF0306A 6A51M060DF0306
GT® 2 TIMING BELT PULLEYS • 2 mm PITCH
FOR BELTS UP TO 3 mm WIDELOW PROFILEDOUBLE FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATION: Pulleys with 12 to 16 grooves have 1 set screw; others have 2 set screws at 90°
ØD1 ØD
4.1
Al
LS
Ød ØD2
SET SCREW
L
4.1
l
SETSCREW
A
ØD2 Ød ØD
Fig. 1Fig. 2
ØD1
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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Fig.No. N
o. o
fG
roov
es
11111212121212121222222222222222333333333
121314151617171818191920202121222224252628303236404244454850566060626872748090
100120
7.6 8.3 8.9 9.610.210.810.811.511.512.312.312.712.713.413.4141415.315.916.617.819.120.42325.526.72828.630.631.835.738.238.239.543.345.947.15157.363.776.4
7.1 7.8 8.4 9 9.710.310.3111111.611.612.212.212.912.912.912.914.815.416.117.318.619.922.42526.227.528.13031.335.237.737.73942.845.346.650.456.863.275.9
12.212.813.514.114.716.116.116.116.116.116.117.417.4181818.818.820.120.721.322.72425.428.130.73233.43436.137.34043.9
–––––––––
3334446464646464666666666666666666668888
10
–––––9.9–9.9–9.9–9.9–9.9–9.9–9.99.99.99.99.99.99.9
10.310.310.310.310.310.310.310.3
–––––––––
12.212.813.514.114.77.9
16.19.2
17.49.9
18.89.9
18.89.9
18.89.9
18.811.211.912.512.513.915.217.219.220.521.822.923.823.826.23129.229.230.430.430.938.138.138.138.1
14.314.314.314.314.315.914.315.914.315.914.315.914.315.914.315.914.317.517.517.517.517.517.517.518.318.318.318.318.318.318.318.319.119.119.119.119.119.119.119.119.1
666666666666666667.57.57.57.57.57.57.588888888–––––––––
2.82.82.82.82.82.82.82.82.82.82.82.82.82.82.82.82.8444444444444444–––––––––
M2M2M2
M2.5M2.5M2.5M3
M2.5M3
M2.5M3
M2.5M3
M2.5M3
M2.5M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M3M4M4M4M4M5
P.D. D*Dia.
D1
Dia.± 0.4
SBody AL
Lgth.
D2
HubDia.± 0.4
lHubProj.
d Bore+0.025 0
SetScrewCatalog Number
METRIC COMPONENT
A 6A51M012DF0603A 6A51M013DF0603A 6A51M014DF0603A 6A51M015DF0604A 6A51M016DF0604A 6A51M017DF0604A 6A51M017DF0606A 6A51M018DF0604A 6A51M018DF0606A 6A51M019DF0604A 6A51M019DF0606A 6A51M020DF0604A 6A51M020DF0606A 6A51M021DF0604A 6A51M021DF0606A 6A51M022DF0604A 6A51M022DF0606A 6A51M024DF0606 A 6A51M025DF0606A 6A51M026DF0606A 6A51M028DF0606A 6A51M030DF0606A 6A51M032DF0606A 6A51M036DF0606A 6A51M040DF0606A 6A51M042DF0606A 6A51M044DF0606A 6A51M045DF0606A 6A51M048DF0606A 6A51M050DF0606A 6A51M056DF0606A 6A51M060DF0606A 6A51M060NF0606A 6A51M062NF0606A 6A51M068NF0606A 6A51M072NF0606A 6A51M074NF0608A 6A51M080NF0608A 6A51M090NF0608A 6A51M100NF0608A 6A51M120NF0610
GT® 2 TIMING BELT PULLEYS • 2 mm PITCH
FOR 6 mm BELTSDOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATION: *D Tolerance: Fig. 1 & Fig. 2: 12 to 60 grooves is +0.05/0 Fig. 3: 60 to 120 grooves is +0.08/0 Pulleys with 12 to 16 grooves have 1 set screw; others have 2 set screws at 90°
ØD1 ØD
7.2
Al
LS
Ød ØD2
SET SCREW
Fig. 2
L7.2l
SETSCREW
A
ØD2 Ød ØD
Fig. 1
ØD1
L
Ød ØD2
5
ØD
9.5
SET SCREW
Fig. 3
l
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
FOR 6 mm BELTSMOLDED WITH INSERTDOUBLE FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass ReinforcedInsert - Brass, Knurled
SPECIFICATIONS:Pulleys with 36 & 40 grooves do not have webs.Pulleys with:5 & 6 mm bore have M3 set screw & spot drill. 8 mm bore have M4 set screw & spot drill.
Catalog Number
METRIC COMPONENT
P.D.No.of
Grooves
A 6Z51M036DF0605A 6Z51M036DF0606A 6Z51M036DF0608A 6Z51M040DF0605A 6Z51M040DF0606A 6Z51M040DF0608A 6Z51M042DF0605A 6Z51M042DF0606A 6Z51M042DF0608A 6Z51M044DF0605A 6Z51M044DF0606A 6Z51M044DF0608A 6Z51M048DF0605A 6Z51M048DF0606A 6Z51M048DF0608A 6Z51M060DF0606A 6Z51M060DF0608A 6Z51M065DF0606A 6Z51M065DF0608A 6Z51M072DF0606A 6Z51M072DF0608A 6Z51M080DF0606A 6Z51M080DF0608A 6Z51M090DF0606A 6Z51M090DF0608A 6Z51M100DF0606A 6Z51M100DF0608A 6Z51M110DF0606A 6Z51M110DF0608A 6Z51M120DF0606A 6Z51M120DF0608A 6Z51M130DF0606A 6Z51M130DF0608
DDia.
D1
Dia.
dBore
H9
dTolerance
23232325.525.525.526.726.726.728282830.630.630.638.238.241.441.445.845.850.950.957.357.363.763.7707076.476.482.882.8
36363640404042424244444448484860606565727280809090
100100110110120120130130
22.422.422.425252526.226.226.227.527.527.530.130.130.137.737.740.940.945.345.350.450.456.856.863.263.269.569.575.475.482.382.3
282828303030313131333333353535434346465151565663636969757582828888
568568568568568686868686868686868
+0.030/0+0.030/0+0.036/0+0.030/0+0.030/0+0.036/0+0.030/0+0.030/0+0.036/0+0.030/0+0.030/0+0.036/0+0.030/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0
2 WEB
ØD1 ØD Ø11 Ø17.5
6.3
17.5
Ød
4
8
3.5
4.5
SET SCREW
SPOT DRILL
1.6 (TYP)
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
FOR 6 mm BELTSMOLDEDDOUBLE FLANGE PROFILE
MATERIAL: Polycarbonate, Fiberglass Reinforced
SPECIFICATION: Pulleys with 12 to 40 grooves do not have webs.
MODIFICATIONS: Available with set screws or pinning holes on special request. Single flange and modifications available on special request.
Catalog Number
METRIC COMPONENT
P.D.No.of
Grooves
A 6L51M012DF0604A 6L51M013DF0604A 6L51M014DF0604A 6L51M015DF0604A 6L51M016DF0604A 6L51M018DF0606A 6L51M020DF0606A 6L51M021DF0606A 6L51M022DF0606A 6L51M024DF0606A 6L51M028DF0608A 6L51M030DF0608A 6L51M032DF0608A 6L51M036DF0608A 6L51M040DF0608A 6L51M042DF0608A 6L51M044DF0608A 6L51M048DF0608A 6L51M060DF0608A 6L51M065DF0608A 6L51M072DF0608A 6L51M080DF0608A 6L51M090DF0608A 6L51M100DF0608A 6L51M110DF0608A 6L51M120DF0608A 6L51M130DF0608
DDia.
D1
Dia.
D2
HubDia.
dBore
H9
dTolerance
7.6 8.3 8.9 9.610.211.512.713.41415.317.819.120.42325.526.72830.638.241.445.85157.363.77076.482.8
1213141516182021222428303236404244486065728090
100110120130
7.1 7.8 8.4 9 9.71112.212.913.514.817.318.619.922.42526.227.530.137.740.945.350.456.863.269.575.982.3
121313141516171819202224252830313335434651566369758288
444446666688888888888888888
1111111111131313131317.517.517.517.517.517.517.517.517.517.517.517.517.517.517.517.517.5
+0.030/0 +0.030/0 +0.030/0 +0.030/0 +0.030/0 +0.030/0 +0.030/0 +0.030/0 +0.030/0 +0.030/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0+0.036/0
17.5
2.3 WEB
ØD1 ØD Ød ØD2
1.6 (TYP)6.3
8
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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0 1Inch
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
FOR BELTS UP TO 6 mm (.236 INCH) WIDEFAIRLOC® HUBDOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS: O.D. Tolerance: 15 to 40 grooves is +.002/-.000 45 to 80 grooves is +.003/-.000 90 to 120 grooves is +.004/-.000
Other sizes available on special order.
ØC
Fig. 3Fig. 2Fig. 1
E3/8 D
CAP SCREW
O.D. ØB
E
CAP SCREW
D
ØCO.D.F.D.
.29
ØB
O.D.F.D.
.29
E
CAP SCREW
D
ØB
ØC
Catalog Number
INCH COMPONENT
O.D. CapScrew
DHubProj.
F.D.± 1/64
CHubDia.
± 1/64
P.D.No.of
Grooves
ELength± 1/64
A 6D51-015DF0606A 6D51-016DF0606A 6D51-018DF0606
A 6D51-020DF0606A 6D51-022DF0606A 6D51-024DF0608A 6D51-025DF0608A 6D51-028DF0608A 6D51-030DF0608A 6D51-032DF0608A 6D51-036DF0608A 6D51-040DF0608A 6D51-045DF0608A 6D51-048DF0608A 6D51-050DF0608A 6D51-060DF0608
A 6D51-060NF0608A 6D51-072NF0608A 6D51-080NF0610A 6D51-090NF0610A 6D51-100NF0610A 6D51-120NF0612
BBore+.001 -.000
.376 .401 .451
.501 .551 .602 .627 .702 .752 .802 .9021.0031.1281.2031.2531.504
1.5041.8052.0052.2562.5063.008
.356 .381 .431
.481 .531 .582 .607 .682 .732 .782 .882 .9831.1081.1831.2331.484
1.4841.7851.9852.2362.4862.988
.555 .580 .625
.685 .740 .790 .815 .895 .9451.0001.1051.2101.3401.4201.4701.730
——————
9/169/169/16
9/169/16
11/1611/1611/1611/1611/1611/1623/3223/3223/3223/3223/32
3/43/43/43/43/43/4
.580
.580
.625
.625
.625
.625
.625
.625
.625
.625
.625
.625
.625
.625
.625
.625
.750
.7501.0001.0001.0001.000
15/6415/6415/64
15/6415/6419/6419/6419/6419/6419/6419/645/165/165/165/165/16
3/83/83/83/83/83/8
#2-56#2-56#2-56
#2-56#2-56#4-40#4-40#4-40#4-40#4-40#4-40#4-40#4-40#4-40#4-40#4-40
#4-40#4-40#6-32#6-32#6-32#6-32
.1875
.1875
.1875
.1875
.1875
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.3125
.3125
.3125
.3750
151618
20222425283032364045485060
60728090
100120
Fig. 1
Fig. 2
Fig. 3
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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0 1Inch
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
FOR 3 mm BELTS (.118 INCH)DOUBLE FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS: O.D. Tolerance: 12 to 40 grooves is +.002/-.000 42 to 60 grooves is +.003/-.000
Pulleys with 12 to 16 grooves have 1 set screw; others have 2 set screws at 90°.
Fig.No.
No.of
Grooves
11111212121212121222222222222222
1213141516171718181919202021212222242526283032364042444548505660
.301
.326
.351
.376
.401
.426
.426
.451
.451
.476
.476
.501
.501
.526
.526
.551
.551
.602
.627
.652
.702
.752
.802
.9021.0031.0531.1031.1281.2031.2531.4041.504
.281
.306
.331
.356
.381
.406
.406
.431
.431
.456
.456
.481
.481
.506
.506
.531
.531
.582
.607
.632
.682
.732
.782
.882
.9831.0331.0831.1081.1831.2331.3841.484
.480
.505
.530
.555
.580
.635
.635
.635
.635
.635
.635
.685
.685
.710
.710
.740
.740
.790
.815
.840
.895
.9451.0001.1051.2101.2601.3151.3401.4201.4701.5751.730
.125
.125
.125
.1875
.1875
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
—————
.260—
.260—
.260—
.260—
.260—
.260—
.260
.260
.260
.260
.260
.260
.260
.276
.276
.276
.276
.276
.276
.276
.276
.480
.505
.530
.555
.580
.312
.635
.312
.635
.312
.635
.364
.685
.390
.710
.390
.740
.442
.468
.490
.494
.546
.598
.676
.754
.806
.858
.900
.936
.9361.0301.222
7/167/167/167/167/1631/647/1631/647/1631/647/1631/647/1631/647/1631/647/1633/6433/6433/6433/6433/6433/6433/6417/3217/3217/3217/3217/3217/3217/3217/32
15/6415/6415/6415/6415/647/3215/647/3215/647/3215/647/3215/647/3215/647/3215/641/41/41/41/41/41/41/41/41/41/41/41/41/41/41/4
7/647/647/647/647/647/647/647/647/647/647/647/647/647/647/647/647/641/81/81/81/81/81/81/81/81/81/81/81/81/81/81/8
#4-40#4-40#4-40#6-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#6-40#6-40#6-40#6-40#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32
P.D. O.D. F.D.± 1/64
WBody S
ELgth.± 1/64
CHubDia.
± 1/64
DHubProj.
BBore+.001 -.000
SetScrewCatalog Number
INCH COMPONENT
A 6A51-012DF0304A 6A51-013DF0304A 6A51-014DF0304A 6A51-015DF0306A 6A51-016DF0306A 6A51-017DF0306A 6A51-017DF0308A 6A51-018DF0306A 6A51-018DF0308A 6A51-019DF0306A 6A51-019DF0308A 6A51-020DF0306A 6A51-020DF0308A 6A51-021DF0306A 6A51-021DF0308A 6A51-022DF0306A 6A51-022DF0308A 6A51-024DF0308A 6A51-025DF0308A 6A51-026DF0308A 6A51-028DF0308A 6A51-030DF0308A 6A51-032DF0308A 6A51-036DF0308A 6A51-040DF0308A 6A51-042DF0308A 6A51-044DF0308A 6A51-045DF0308A 6A51-048DF0308A 6A51-050DF0308A 6A51-056DF0308A 6A51-060DF0308
F.D. O.D.
.16
S
EW D
ØB ØC
SET SCREW
E
.16
SETSCREW
SD
ØC ØB O.D.
Fig. 1 Fig. 2
F.D.
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
0 1Inch
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
FOR 6 mm BELTS (.236 INCH)DOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS:O.D. Tolerance:12 to 40 grooves is +.002/-.00042 to 80 grooves is +.003/-.00090 to 120 grooves is +.004/-.000
Pulleys with 12 to 16 grooves have 1 set screw; others have 2 set screws at 90°.
Fig.No.
No.of
Grooves
11111212121212121222222222222222333333333
121314151617171818191920202121222224252628303236404244454850566060626872748090
100120
.301 .326 .351 .376 .401 .426 .426 .451 .451 .476 .476 .501 .501 .526 .526 .551 .551 .602 .627 .652 .702 .752 .802 .9021.0031.0531.1031.1281.2031.2531.4041.5041.5041.5541.7041.8051.8552.0052.2562.5063.008
.281 .306 .331 .356 .381 .406.406
.431.431
.456.456
.581.581
.506.506
.531.531
.582 .607 .632 .682 .732 .782 .882 .9831.0331.0831.1081.1831.2331.3841.4841.4841.5341.6841.7851.8351.9852.2362.4862.988
.480 .505 .530 .555 .580 .635.635
.635.635
.635.635
.685.685
.710.710
.740.740
.790 .815 .840 .895 .9451.0001.1051.2101.2601.3151.3401.4201.4701.5751.730
—————————
.125
.125
.125
.1875
.1875
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.3125
.3125
.3125
.375
———
.389
.389
.389—
.389—
.389—
.389—
.389—
.389—
.389
.389
.389
.389
.389
.389
.389
.405
.405
.405
.405
.405
.405
.405
.405—————————
.480 .505 .530 .555 .580 .312 .635 .312 .635 .338 .635 .364 .685 .390 .710 .390 .740 .442 .468 .490 .494 .546 .598 .676 .754 .806 .858 .900 .936 .9361.0301.2221.1481.1481.1951.1951.2151.5001.5001.5001.500
9/169/169/169/169/165/89/165/89/165/89/165/89/165/89/165/89/16
11/1611/1611/1611/1611/1611/1611/1623/3223/3223/3223/3223/3223/3223/3223/323/43/43/43/43/43/43/43/43/4
15/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6419/6419/6419/6419/6419/6419/6419/645/165/165/165/165/165/165/165/163/83/83/83/83/83/83/83/83/8
7/647/647/647/647/647/647/647/647/647/647/647/647/647/647/647/647/645/325/325/325/325/325/325/325/325/325/325/325/325/325/325/323/163/163/163/163/163/163/163/163/16
#4-40#4-40#4-40#6-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#6-40#6-40#6-40#6-40#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#10-32
P.D. O.D. F.D.± 1/64
WBody S
ELength± 1/64
CHubDia.
± 1/64
DHubProj.
BBore+.001 -.000
SetScrewCatalog Number
INCH COMPONENT
A 6A51-012DF0604A 6A51-013DF0604A 6A51-014DF0604A 6A51-015DF0606A 6A51-016DF0606A 6A51-017DF0606A 6A51-017DF0608A 6A51-018DF0606A 6A51-018DF0608A 6A51-019DF0606A 6A51-019DF0608A 6A51-020DF0606A 6A51-020DF0608A 6A51-021DF0606A 6A51-021DF0608A 6A51-022DF0606A 6A51-022DF0608A 6A51-024DF0608A 6A51-025DF0608A 6A51-026DF0608A 6A51-028DF0608A 6A51-030DF0608A 6A51-032DF0608A 6A51-036DF0608A 6A51-040DF0608A 6A51-042DF0608A 6A51-044DF0608A 6A51-045DF0608A 6A51-048DF0608A 6A51-050DF0608A 6A51-056DF0608A 6A51-060DF0608A 6A51-060NF0608A 6A51-062NF0608A 6A51-068NF0608A 6A51-072NF0608A 6A51-074NF0608A 6A51-080NF0610A 6A51-090NF0610A 6A51-100NF0610A 6A51-120NF0612
F.D. O.D.
.29
ED
ØB ØC
S
O.D.
.38SD
EW
ØBØC
SET SCREW SET
SCREW
E.29D
SETSCREW
S
ØC ØB O.D. F.D.
Fig. 1 Fig. 2 Fig. 3
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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0 1Inch
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
Fig.No.
No.of
Grooves
11111212121212121222222222222222333333333
121314151617171818191920202121222224252628303236404244454850566060626872748090
100120
.301 .326 .351 .376 .401 .426 .426 .451 .451 .476 .476 .501 .501 .526 .526 .551 .551 .602 .627 .652 .702 .752 .802 .9021.0031.0531.1031.1281.2031.2531.4041.5041.5041.5541.7041.8051.8552.0052.2562.5063.008
.281 .306 .331 .356 .381 .406.406
.431.431
.456.456
.481.481
.506.506
.531.531
.582 .607 .632 .682 .732 .782 .882 .9831.0331.0831.1081.1831.2331.3841.4841.4841.5341.6841.7851.8351.9852.2362.4862.988
.480 .505 .530 .555 .580 .635.635
.635.635
.635.635
.685.685
.710.710
.740.740
.790 .815 .840 .895 .9451.0001.1051.2101.2601.3151.3401.4201.4701.5751.730
—————————
.125
.125
.125
.1875
.1875
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.3125
.3125
.3125
.375
—————
.514 —
.514—
.514—
.514—
.514—
.514—
.514
.514
.514
.514
.514
.514
.514
.530
.530
.530
.530
.530
.530
.530
.530—————————
.480 .505 .530 .555 .580 .312 .635 .312 .635 .338 .635 .364 .685 .390 .710 .390 .740 .442 .468 .490 .494 .546 .598 .676 .754 .806 .858 .900 .936 .9361.0301.2221.1481.1481.1951.1951.2151.5001.5001.5001.500
11/1611/1611/1611/1611/163/4
11/163/4
11/163/4
11/163/4
11/163/4
11/163/4
11/1613/1613/1613/1613/1613/1613/1613/1627/3227/3227/3227/3227/3227/3227/3227/327/87/87/87/87/87/87/87/87/8
15/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6415/6419/6419/6419/6419/6419/6419/6419/645/165/165/165/165/165/165/165/163/83/83/83/83/83/83/83/83/8
7/647/647/647/647/647/647/647/647/647/647/647/647/647/647/647/647/645/325/325/325/325/325/325/325/325/325/325/325/325/325/325/323/163/163/163/163/163/163/163/165/32
#4-40#4-40#4-40#6-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#4-40#6-40#6-40#6-40#6-40#6-40#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#8-32#10-32
P.D. O.D. F.D.± 1/64
WBody S
ELgth.± 1/64
CHubDia.
± 1/64
DHubProj.
BBore+.001 -.000
SetScrewCatalog Number
INCH COMPONENT
A 6A51-012DF0904A 6A51-013DF0904A 6A51-014DF0904A 6A51-015DF0906A 6A51-016DF0906A 6A51-017DF0906A 6A51-017DF0908A 6A51-018DF0906A 6A51-018DF0908A 6A51-019DF0906A 6A51-019DF0908A 6A51-020DF0906A 6A51-020DF0908A 6A51-021DF0906A 6A51-021DF0908A 6A51-022DF0906A 6A51-022DF0908A 6A51-024DF0908A 6A51-025DF0908A 6A51-026DF0908A 6A51-028DF0908A 6A51-030DF0908A 6A51-032DF0908A 6A51-036DF0908A 6A51-040DF0908A 6A51-042DF0908A 6A51-044DF0908A 6A51-045DF0908A 6A51-048DF0908A 6A51-050DF0908A 6A51-056DF0908A 6A51-060DF0908A 6A51-060NF0908A 6A51-062NF0908A 6A51-068NF0908A 6A51-072NF0908A 6A51-074NF0908A 6A51-080NF0910A 6A51-090NF0910A 6A51-100NF0910A 6A51-120NF0912
FOR 9 mm BELTS (.354 INCH)DOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS: O.D. Tolerance: 12 to 40 grooves is +.002/-.000 42 to 80 grooves is +.003/-.000 90 to 120 grooves is +.004/-.000 Pulleys with 12 to 16 grooves have 1 set screw; others have 2 set screws at 90°.
F.D. O.D.
.41
ED
ØB ØC
S
O.D.
.500S
DE
W
ØBØC
SET SCREW SET
SCREW
E.41D
SETSCREW
S
ØC ØB O.D. F.D.
Fig. 1 Fig. 2 Fig. 3
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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0 1Inch
FOR 6 mm BELTS (.236 INCH)MOLDED WITH INSERTDOUBLE FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass Reinforced Insert - Brass, Knurled
SPECIFICATIONS: Pulleys with:
Pulleys with 36 & 40 grooves do not have webs.
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
Bore Set Screw & Spot Drill.1875.250.3125
#4-40#6-32#8-32
Catalog Number
INCH COMPONENT
P.D.No.of
Grooves
A 6Z51-036DF0606A 6Z51-036DF0608A 6Z51-036DF0610A 6Z51-040DF0606A 6Z51-040DF0608A 6Z51-040DF0610A 6Z51-042DF0606A 6Z51-042DF0608A 6Z51-042DF0610A 6Z51-044DF0606A 6Z51-044DF0608A 6Z51-044DF0610A 6Z51-048DF0606A 6Z51-048DF0608A 6Z51-048DF0610A 6Z51-060DF0608A 6Z51-060DF0610A 6Z51-065DF0608A 6Z51-065DF0610A 6Z51-072DF0608A 6Z51-072DF0610A 6Z51-080DF0608A 6Z51-080DF0610A 6Z51-090DF0608A 6Z51-090DF0610A 6Z51-100DF0608A 6Z51-100DF0610A 6Z51-110DF0608A 6Z51-110DF0610A 6Z51-120DF0608A 6Z51-120DF0610A 6Z51-130DF0608A 6Z51-130DF0610
O.D. F.D.B
Bore+.001 -.000
.902
.902
.9021.0031.0031.0031.0531.0531.0531.1031.1031.1031.2031.2031.2031.5041.5041.6291.6291.8051.8052.0052.0052.2562.2562.5062.5062.7572.7573.0083.0083.2583.258
.882
.882
.882
.983
.983
.9831.0331.0331.0331.0831.0831.0831.1831.1831.1831.4841.4841.6091.6091.7851.7851.9851.9852.2362.2362.4862.4862.7372.7372.9882.9883.2383.238
1.091.091.091.191.191.191.241.241.241.291.291.291.391.391.391.701.701.821.822.002.002.212.212.462.462.712.712.972.973.223.223.483.48
36363640404042424244444448484860606565727280809090
100100110110120120130130
.1875
.250
.3125
.1875
.250
.3125
.1875
.250
.3125
.1875
.250
.3125
.1875
.250
.3125
.250
.3125
.250
.3125
.250
.3125
.250
.3125
.250
.3125
.250
.3125
.250
.3125
.250
.3125
.250
.3125
11/16
5/32
F.D. O.D.
5/16
1/4
Ø7/16
ØB Ø11/16
SET SCREW
SPOT DRILL
1/16 (TYP)
11/64
.090 WEB9/64
2-171
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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0 1Inch
FOR BELTS UP TO 6 mm (.236 INCH) WIDEMOLDEDDOUBLE FLANGE PROFILE
MATERIAL: Polycarbonate, Fiberglass Reinforced
SPECIFICATION: Pulleys with 12 to 40 grooves do not have webs.
MODIFICATIONS: Available with set screws or pinning holes on special order. Single flange and special modifications available on special request.
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
F.D. O.D. ØCØB
1/16 (TYP)5/16
11/16 ± 1/64
1/4
.090 WEB
Catalog Number
INCH COMPONENT
P.D.No.of
Grooves
A 6L51-012DF0604A 6L51-013DF0604A 6L51-014DF0604A 6L51-015DF0604A 6L51-016DF0604A 6L51-018DF0606A 6L51-020DF0606A 6L51-021DF0606A 6L51-022DF0606A 6L51-024DF0606A 6L51-028DF0608A 6L51-030DF0608A 6L51-032DF0608A 6L51-036DF0608A 6L51-040DF0608A 6L51-042DF0608A 6L51-044DF0608A 6L51-048DF0608A 6L51-060DF0608A 6L51-065DF0610A 6L51-072DF0610A 6L51-080DF0610A 6L51-090DF0610A 6L51-100DF0610A 6L51-110DF0610A 6L51-120DF0610A 6L51-130DF0610
O.D. F.D.C
HubDia.
BBore+.001-.000
.301 .326 .351 .376 .401 .451 .501 .526 .551 .602 .702 .752 .802 .9021.0031.0531.1031.2031.5041.6291.8052.0052.2562.5062.7573.0083.258
1213141516182021222428303236404244486065728090
100110120130
.281 .306 .331 .356 .381 .431 .481 .506 .531 .582 .682 .732 .782 .882 .9831.0331.0831.1831.4841.6091.7851.9852.2362.4862.7372.9883.238
.47 .51 .53 .55 .58 .63 .68 .70 .73 .78 .88 .93 .981.091.191.241.291.391.701.822.002.212.462.712.973.223.48
.1250
.1250
.1250
.1250
.1250
.1875
.1875
.1875
.1875
.1875
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.3125
.3125
.3125
.3125
.3125
.3125
.3125
.3125
7/167/167/167/167/161/21/21/21/21/2
11/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/16
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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0 1Inch
Catalog Number
INCH COMPONENT
P.D.No.of
Grooves
A 6L51-012SF0604A 6L51-013SF0604A 6L51-014SF0604A 6L51-015SF0604A 6L51-016SF0604A 6L51-018SF0606A 6L51-020SF0606A 6L51-021SF0606A 6L51-022SF0606A 6L51-024SF0606A 6L51-028SF0608A 6L51-030SF0608A 6L51-032SF0608A 6L51-036SF0608A 6L51-040SF0608A 6L51-042SF0608A 6L51-044SF0608A 6L51-048SF0608A 6L51-060SF0608A 6L51-065SF0610A 6L51-072SF0610A 6L51-080SF0610A 6L51-090SF0610A 6L51-100SF0610A 6L51-110SF0610A 6L51-120SF0610A 6L51-130SF0610
O.D. F.D.C
HubDia.
BBore+.001-.000
.301 .326 .351 .376 .401 .451 .501 .526 .551 .602 .702 .752 .802 .9021.0031.0531.1031.2031.5041.6291.8052.0052.2562.5062.7573.0083.258
1213141516182021222428303236404244486065728090
100110120130
.281 .306 .331 .356 .381 .431 .481 .506 .531 .582 .682 .732 .782 .882 .9831.0331.0831.1831.4841.6091.7851.9852.2362.4862.7372.9883.238
.47 .51 .53 .55 .58 .63 .68 .70 .73 .78 .88 .93 .981.091.191.241.291.391.701.822.002.212.462.712.973.223.48
.1250
.1250
.1250
.1250
.1250
.1875
.1875
.1875
.1875
.1875
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.2500
.3125
.3125
.3125
.3125
.3125
.3125
.3125
.3125
7/167/167/167/167/161/21/21/21/21/2
11/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/16
F.D. O.D.
5/16
1/16 (TYP)
ØB
ØC
1/4
11/16 ± 1/64
.090 WEB
FOR 6 mm BELTS (.236 INCH)MOLDEDSINGLE FLANGE PROFILE
MATERIAL: Polycarbonate, Fiberglass Reinforced
SPECIFICATION: Pulleys with 12 to 40 grooves do not have webs.
MODIFICATIONS: Available with set screws or pinning holes on special order. Other modifications available on special request.
GT®2 TIMING BELT PULLEYS • 2 mm PITCH
For FHT®-2 Timing Belts see: A 6B19M... and A 6G19M...
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0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM BELT WIDTHSMETRIC - 6 & 9 mmHIGH TORQUE CAPACITYVERY LOW NOISECLEAN OPERATIONMINIMAL BACKLASHCOMPACT DRIVE
MATERIAL: Body - Polyurethane, BlackCords - Kevlar or FiberglassBacking - Textured
OPERATING TEMPERATURE:-30°C to +85°C (-22°F to +185°F)
SPECIFICATIONS:Breaking Strength (Double Span)Kevlar: 364 N per 1 mm (260 lbf per 1/8 in.) Belt WidthFiberglass: 168 N per 1 mm (120 lbf per 1/8 in.) Belt Width
MODIFICATIONS:Special Widths - cut to size fromsleeves available from stock.
FHT®-3 TIMING BELTS • 3 mm PITCH
NOTE: Dimensions in ( ) are inch.
BELT WIDTH
Fig. 1
Fig. 2
BELT WIDTH
PITCH LINE
PITCH LINE
2.29(.090)
2.29(.090)
3.00(.1181)
3.00(.1181)
1.88(.074)
1.94(.076)
1.40(.055)
1.40(.055)
1.14(.045)
98.8 (140)
LIM
ITIN
G T
ORQ
UE
N-c
m (o
z. in
.)
84.7 (120)
70.6 (100)
56.5 (80)
42.4 (60)
28.2 (40)
14.1 (20)
2.54(.1)
5.08(.2)
7.62(.3)
10.16(.4)
15.24(.6)
17.78(.7)
20.32(.8)
22.86(.9)
25.4(1.0)
27.94(1.1)
12.7(.5)
00
9.5 (.375)
6.4 (.250)
4.8 (.188)3.2 (.125)
FHT®-3 TORQUE CAPACITY AT VARIOUS WIDTHS CONTAINING FR-17 KEVLAR® @ 50 T.P.I
PITCH DIAMETER mm (in.)
FHT® Registered trademark of Fenner PrecisionFor Timing Pulleys see: A 6D53M..., A 6A53M..., A 6Z53M..., A 6L53M..., A 6D53-..., A 6A53-..., A 6Z53-..., A 6L53-...
2-26C
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Metric
0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
METRIC COMPONENTCATALOG NUMBER
No. ofGrooves
Code
A 6 B 2 0 M
METRIC COMPONENTCATALOG NUMBER
No. ofGrooves
Code
A 6 G 2 0 M
Polyurethane Belt with Fiberglass Cords:
Polyurethane Belt with Kevlar Cords:
FHT®-3 TIMING BELTS • 3 mm PITCH
69
060090
WidthCode
Belt Widthmm
69
060090
WidthCode
Belt Widthmm
GrooveCode
086113156
mm Inch
Pitch Length
258339468
10.1613.3518.43
Fig. 1
GrooveCode
054078082085086092108131135136140179180200
mm Inch
Pitch Length
162234246255258276324393405408420537540600
6.389.219.69
10.0410.1610.8712.7615.4715.9416.0616.5421.1421.2623.62
Fig. 1
GrooveCode
045048050055058059060064065067
mm Inch
Pitch Length
135144150165174177180192195201
5.315.675.916.506.856.977.097.567.687.91
Fig. 2
GrooveCode
062092108120
mm Inch
Pitch Length
186276324360
7.3210.8712.7614.17
Fig. 2
GrooveCode mm Inch
Pitch Length
Fig. 2 Continued
068069070075077080081084089090095098105110112118121122125130132148150151158163164165167183
204207210255231240243252267270285294315330336354363366375390396444450453474489492495501549
8.038.158.278.869.099.459.579.92
10.5110.6311.2211.5712.4012.9913.2313.9414.2914.4114.7615.3515.5917.4817.7217.8318.6619.2519.3719.4919.7221.61
FHT® Registered trademark of Fenner PrecisionFor Timing Pulleys see: A 6D53M..., A 6A53M..., A 6Z53M..., A 6L53M..., A 6D53-..., A 6A53-..., A 6Z53-..., A 6L53-...
2-26D
Metric
0 10
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5
6
7
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9
10
11
12
13
T
14
15
A
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
GT® 2 TIMING BELT PULLEYS • 3 mm PITCH
FOR BELTS UP TO 9 mm WIDEFAIRLOC® HUBDOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATION: D Tolerance: 18 to 26 grooves is +0.051/0 30 to 50 grooves is +0.076/0 56 to 80 grooves is +0.102/0
Other sizes available on special order.
Catalog Number
METRIC COMPONENT
DDia.
CapScrew
lHubProj.
D1
Dia.± 0.4
D2
HubDia.± 0.4
P.D.No.of
Grooves
LLength
± 0.4
SBody
A 6D53M018DF0906A 6D53M020DF0906A 6D53M022DF0906A 6D53M024DF0906A 6D53M025DF0906A 6D53M026DF0906
A 6D53M030DF0906A 6D53M032DF0906A 6D53M034DF0906A 6D53M036DF0906A 6D53M038DF0906A 6D53M040DF0906A 6D53M045DF0906
A 6D53M034NF0906A 6D53M036NF0906A 6D53M038NF0906A 6D53M040NF0906A 6D53M045NF0908A 6D53M048NF0908A 6D53M050NF0908A 6D53M056NF0908A 6D53M060NF0908A 6D53M072NF0908A 6D53M080NF0908
dBore+0.025
0
17.219.12122.923.924.8
28.730.632.534.436.338.243
32.534.436.338.24345.847.853.557.368.876.4
16.418.320.222.123.124
27.929.831.733.635.537.442.2
31.733.635.537.442.2454752.756.56875.6
2022.7242626.928.1
31.833.635.537.439.941.345.1
–––––––––––
20.5 20.5 20.5 20.5 20.5 20.5
20.620.621.4 21.4 21.4 21.4 21.4
21.3 21.3 21.3 21.322.2 22.2 22.2 22.2 22.2 22.2 22.2
––––––
12.912.913.413.413.413.413.4
13.413.413.413.412.7 12.7 12.7 12.7 12.7 12.7 12.7
19.1 19.1 19.1 19.1 19.1 19.1
19.1 19.1 19.1 19.1 19.1 19.1 19.1
19.1 19.1 19.1 19.125.4 25.4 25.4 25.4 25.4 25.4 25.4
7.5 7.5 7.5 7.5 7.5 7.5
7.5 7.57.9 7.9 7.9 7.9 7.9
7.9 7.9 7.9 7.99.5 9.5 9.5 9.5 9.5 9.5 9.5
M3 M3 M3 M3 M3 M3
M3 M3 M3 M3 M3 M3 M3
M3 M3 M3 M3 M3 M3 M3 M3 M3 M3 M3
666666
6666666
66668888888
182022242526
30323436384045
3436384045485056607280
Fig. 1
Fig. 3
Fig. 2
CAP SCREW
ØD
ØD2ØD2
ØD1ØD1
ØD2
LS l
ØdØdØD
10.410.4
L
CAP SCREW
lS
ØdØD
Fig. 1 Fig. 2 Fig. 3
L
CAP SCREW
l
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
2-156
Metric
0 10
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2
3
4
5
6
7
8
9
10
11
12
13
T
14
15
16
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
ØD1 ØD2ØD Ød ØD
L
Ød
SLL
SETSCREW
SET SCREW
Ød
Fig. 1 Fig. 2 Fig. 3
ØD
ll/2
SETSCREW
ØD2 ØD1 ØD2
ll/2 l
l/27
7
10.3
Catalog Number
METRIC COMPONENT
SetScrew
lHubProj.
D1
Dia.± 0.4
D2
HubDia.± 0.4
P.D. SBody
Fig.No. N
o. o
fG
roov
es LLgth.± 0.4
A 6A53M016DF0606A 6A53M017DF0606A 6A53M018DF0606A 6A53M019DF0606A 6A53M020DF0606A 6A53M021DF0606A 6A53M022DF0606A 6A53M024DF0606A 6A53M025DF0606A 6A53M026DF0606A 6A53M028DF0606A 6A53M030DF0606A 6A53M032DF0606A 6A53M034DF0606A 6A53M036DF0606A 6A53M038DF0606A 6A53M040DF0606A 6A53M044DF0606A 6A53M045DF0606
A 6A53M034NF0606A 6A53M036NF0606A 6A53M038NF0606A 6A53M040NF0606A 6A53M044NF0606A 6A53M045NF0608A 6A53M048NF0608A 6A53M050NF0608A 6A53M056NF0608A 6A53M060NF0608A 6A53M062NF0608A 6A53M068NF0608A 6A53M072NF0608A 6A53M080NF0608
dBore+0.025
0
DDia.
15.316.217.218.219.1202122.923.924.826.828.730.632.534.436.338.24243
32.534.436.338.2424345.847.853.557.359.264.968.876.4
14.515.416.417.418.319.320.222.123.1242627.929.831.733.635.537.441.242.2
31.733.635.537.441.242.2454752.756.558.464.26875.6
1818.82020.722.722.7242626.928.129.831.833.635.537.439.441.345.145.1
——————————————
——9.89.8 9.8 9.8 9.8 9.8 9.8 9.8 9.8 9.8 9.8
10.3 10.3 10.3 10.3 10.3 10.3
——————————————
14.514.517.517.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.518.2 18.2 18.2 18.2 18.2 18.2
18.2 18.2 18.2 18.2 18.218.6 18.6 18.6 18.6 18.6 18.6 18.6 18.6 18.6
1818.811.211.912.712.714.315.915.915.917.819.721.623.425.427.329.23333
23.425.427.329.23331.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8 31.8
667.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7 7.7888888
888888.38.3 8.3 8.3 8.3 8.3 8.3 8.3 8.3
M3 M3 M3 M3 M3 M3M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4 M4
6666666666666666666
66666888888888
16171819202122242526283032343638404445
3436384044454850566062687280
1122222222222222222
33333333333333
Double Flange
No Flange
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 6 mm BELTSDOUBLE OR NO FLANGE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS: D Tolerance: Fig. 1 & Fig. 2: 16 to 45 grooves is +0.05/0 Fig. 3: 34 to 80 grooves is +0.08/0
All pulleys have 2 set screws at 90°.
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
2-157
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0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTSMOLDED WITH INSERTDOUBLE FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass ReinforcedInsert - Aluminum, Knurled
ØD2 ØD3
36.3
20.6
Ød
ØD2 ØD3ØD1 ØD
11.1
Fig. 1 Fig. 2
SPOT DRILL
SET SCREW
11.1
Ød
ØD1 ØD
3.56.3
20.6
SET SCREW
SPOT DRILL
12.7
Catalog Number
METRIC COMPONENT
No.of
GroovesP.D.
A 6Z53M016DF0904
A 6Z53M017DF0904A 6Z53M017DF0905A 6Z53M017DF0906A 6Z53M018DF0904A 6Z53M018DF0905A 6Z53M018DF0906A 6Z53M019DF0904A 6Z53M019DF0905A 6Z53M019DF0906A 6Z53M020DF0904A 6Z53M020DF0905A 6Z53M020DF0906A 6Z53M022DF0904A 6Z53M022DF0905A 6Z53M022DF0906A 6Z53M025DF0906A 6Z53M025DF0908A 6Z53M028DF0906A 6Z53M028DF0908
DDia.
D1
Dia.
dBore
H9
dTolerance
D2
Dia.
D3
HubDia.
SetScrew
16
17171718181819191920202022222225252828
15.3
16.216.216.217.217.217.218.218.218.219.119.119.121212123.923.926.826.8
14.5
15.415.415.416.416.416.417.417.417.418.318.318.320.220.220.223.123.12626
17.5
17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.5 17.519191919
M3
M3M3 M3 M3 M3 M3 M3 M3 M3 M3 M3 M3 M3 M3 M3M4M4M4M4
11
9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 9.5 13 13 13 13
21
22222222222222222224242427272730303232
+0.030/0
+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.036/0+0.030/0+0.036/0
4
4564564564564566868
Fig. 1
Fig. 2
∆ 6 mm long insert hub end only. Continued on the next page.
∆
∆
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
2-159
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11
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0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTSMOLDED WITH INSERTDOUBLE FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass ReinforcedInsert - Aluminum, Knurled
Catalog Number
METRIC COMPONENT
No.of
GroovesP.D.
A 6Z53M032DF0906A 6Z53M032DF0908A 6Z53M036DF0906A 6Z53M036DF0908A 6Z53M040DF0906A 6Z53M040DF0908A 6Z53M048DF0906A 6Z53M048DF0908
A 6Z53M060DF0908A 6Z53M060DF0910A 6Z53M060DF0912A 6Z53M072DF0908A 6Z53M072DF0910A 6Z53M072DF0912A 6Z53M080DF0908A 6Z53M080DF0910A 6Z53M080DF0912
DDia.
D1
Dia.
dBore
H9
dTolerance
D2
Dia.
D3
HubDia.
SetScrew
3232363640404848
606060727272808080
30.630.634.434.438.238.245.845.8
57.357.357.368.868.868.876.476.476.4
29.829.833.633.637.437.44545
56.556.556.568686875.675.675.6
1919222222222222
222222222222222222
M4M4M4M4M4M4M4M4
M5M5M5M5M5M5M5M5M5
1313131313131313
161616161616161616
3737404045455151
636363747474838383
+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0+0.030/0+0.036/0
+0.036/0+0.036/0+0.043/0+0.036/0+0.036/0+0.043/0+0.036/0+0.036/0+0.043/0
68686868
810128
10128
1012
Fig. 1
Fig. 2
Continued from the previous page.
3.56.3
20.6
12.7
Ød ØD3ØD2ØD
Fig. 1Fig. 2
ØD1
11.1
SPOT DRILL
SET SCREW
Ød ØD3ØD2ØD
ØD1
11.1
SPOT DRILL
SET SCREW
412.7
22.28
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
2-160
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10
11
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Metric
0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTSMOLDED WITH INSERTSINGLE OR NO FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass ReinforcedInsert - Aluminum, Knurled
Catalog Number
METRIC COMPONENT
No.of
GroovesP.D.
A 6Z53M084SF0908A 6Z53M084SF0910A 6Z53M084SF0912A 6Z53M096SF0908A 6Z53M096SF0910A 6Z53M096SF0912
A 6Z53M120NF0910A 6Z53M120NF0912
DDia.
D1
Dia.
dBore
H9
dTolerance
D2
Dia.
D3
HubDia.
SetScrew
848484969696
120120
80.280.280.291.791.791.7
114.6114.6
79.579.579.590.990.990.9
113.8113.8
868686979797
––
222222252525
2525
M5 M5 M5 M5 M5 M5
M5 M5
161616161616
1616
+0.036/0+0.036/0+0.043/0+0.036/0+0.036/0+0.043/0
+0.036/0+0.043/0
810128
1012
1012
Fig. 1 Single Flange
Fig. 2 No Flange
59.512.7
22.2
Ød ØD3ØD2ØD
SPOT DRILL
48
20.6
Ød ØD3 ØD1ØD2
ØD
Fig. 1 Fig. 2
511.1
SPOT DRILL
SET SCREW
SET SCREW
5
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
2-161
I
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8
9
10
11
12
13
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14
15
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Metric
0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTSMOLDEDDOUBLE FLANGE PROFILE
MATERIAL: Polycarbonate, Fiberglass Reinforced
SPECIFICATION: Pulleys with 16 to 28 grooves do not have webs.
Ød
ØD2ØD
5
ØD1
11.1Ød
ØD
5 11.1
20.6
Fig. 1 Fig. 2 Fig. 3
Ød
ØD11.1
22.220.6
6.3
ØD2 ØD1ØD2 ØD1
6.3
8
Catalog Number
METRIC COMPONENT
No.of
GroovesP.D.
A 6L53M016DF0904
A 6L53M017DF0904A 6L53M018DF0904A 6L53M019DF0904A 6L53M020DF0904A 6L53M022DF0904A 6L53M025DF0906A 6L53M028DF0906
A 6L53M032DF0906A 6L53M036DF0906A 6L53M040DF0906A 6L53M048DF0906
A 6L53M060DF0908A 6L53M072DF0908A 6L53M080DF0908
DDia.
D1
Dia.
dBore
H9
dTolerance
D2
HubDia.
16
17181920222528
32364048
607280
15.3
16.217.218.119.12123.926.7
30.634.438.245.8
57.368.876.4
14.5
15.516.417.418.320.223.126
29.833.637.445.1
56.56875.6
17.5
17.517.517.517.517.51919
19222222
222222
21
22242424273032
37404551
637484
+0.030/0
+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0+0.030/0
+0.030/0+0.030/0+0.030/0+0.030/0
+0.036/0+0.036/0+0.036/0
4
4444444
6666
888
Fig. 1
Fig. 2 Solid
Fig. 2
Fig. 3
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
2-162
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3
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8
9
10
11
12
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14
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16
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
0 1Inch
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 6 mm BELTS (.236 INCH)DOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS: O.D. Tolerance: 16 to 26 grooves is +.002/-.000 28 to 50 grooves is +.003/-.000 56 to 80 grooves is +.004/-.000
All pulleys have 2 set screws at 90°.
Catalog Number
INCH COMPONENT
O.D.D
HubProj.
F.D.± 1/64
CHubDia.
± 1/64
P.D.No.of
Grooves
ELength± 1/64
W
A 6A53-016DF0606A 6A53-017DF0606
A 6A53-018DF0608A 6A53-019DF0608A 6A53-020DF0608A 6A53-021DF0608A 6A53-022DF0608A 6A53-024DF0608A 6A53-025DF0608A 6A53-026DF0608A 6A53-028DF0608A 6A53-030DF0608A 6A53-032DF0608A 6A53-034DF0608A 6A53-036DF0608A 6A53-038DF0608A 6A53-040DF0608A 6A53-044DF0608A 6A53-045DF0608
A 6A53-034NF0608A 6A53-036NF0608A 6A53-038NF0608A 6A53-040NF0608A 6A53-044NF0608A 6A53-045NF0610A 6A53-048NF0610A 6A53-050NF0610A 6A53-056NF0610A 6A53-060NF0610A 6A53-062NF0610A 6A53-068NF0610A 6A53-072NF0610A 6A53-080NF0610
BBore+.001 -.000
.602
.639
.677
.714
.752
.790
.827
.902
.940
.9771.0531.1281.2031.2781.3531.4291.5041.6541.692
1.2781.3531.4291.5041.6541.6921.8051.8802.1052.2562.3312.5572.7073.008
.572
.609
.647
.684
.722
.760
.797
.872
.910
.9471.0231.0981.1731.2481.3231.3991.4741.6241.662
1.2481.3231.3991.4741.6241.6621.7751.8502.0752.2262.3012.5272.6772.978
.710
.740
.790
.815
.895
.895
.9451.0251.0601.1051.1731.2501.3231.3981.4731.5491.6251.7751.775
——————————————
9/169/16
11/1611/1611/1611/1611/1611/1611/1611/1611/1611/1611/1623/3223/3223/3223/3223/3223/32
23/3223/3247/6447/6447/6447/6447/6447/6447/6447/6447/6447/6447/6447/64
——
.386
.386
.386
.386
.386
.386
.386
.386
.386
.386
.386
.407
.407
.407
.407
.407
.407
——————————————
.710
.740
.442
.468
.500
.500
.562
.625
.625
.625
.701
.776
.851
.9211.0001.0751.1501.3001.300
.9211.0001.0751.1501.3001.2501.2501.2501.2501.2501.2501.2501.2501.250
15/6415/64
19/6419/6419/6419/6419/6419/6419/6419/6419/6419/6419/645/165/165/165/165/165/16
5/165/1621/6421/6421/6421/6421/6421/6421/6421/6421/6421/6421/6421/64
.1875
.1875
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.3125
.3125
.3125
.3125
.3125
.3125
.3125
.3125
.3125
1617
1819202122242526283032343638404445
3436384044454850566062687280
Fig. 1
Fig. 2
Fig. 3
E#6-40SET SCREW
.28
DD/2
ØC ØB O.D. F.D. F.D. O.D.
.28
DE
W
ØB ØC
#8-32SET SCREW
D/2E
DD/2
ØBØCO.D.
.407
#8-32SET SCREW
Fig. 1 Fig. 2 Fig. 3
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
2-183
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PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
0 1Inch
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTS (.354 INCH)FAIRLOC® HUBDOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS: O.D. Tolerance: 18 to 26 grooves is +.002/-.000 30 to 50 grooves is +.003/-.000 56 to 80 grooves is +.004/-.000
Other sizes available on special order.
ØC
Fig. 3Fig. 2Fig. 1
EW D
#6-32 CAP SCREW
O.D. ØB
E
#6-32 CAP SCREW
D
ØCO.D.F.D.
.40
ØB
O.D.F.D.
.40
E
#6-32 CAP SCREW
D
ØB
ØC
W
Catalog Number
INCH COMPONENT
O.D.D
HubProj.
F.D.± 1/64
CHubDia.
± 1/64
P.D.No.of
Grooves
ELength± 1/64
W
A 6D53-018DF0908A 6D53-020DF0908A 6D53-022DF0908A 6D53-024DF0908A 6D53-025DF0908A 6D53-026DF0908
A 6D53-030DF0908A 6D53-032DF0908A 6D53-034DF0908A 6D53-036DF0908A 6D53-038DF0908A 6D53-040DF0908A 6D53-045DF0908
A 6D53-034NF0908A 6D53-036NF0908A 6D53-038NF0908A 6D53-040NF0908A 6D53-045NF0910A 6D53-048NF0910A 6D53-050NF0910A 6D53-056NF0910A 6D53-060NF0910A 6D53-072NF0910A 6D53-080NF0910
BBore+.001 -.000
.677 .752 .827 .902 .940 .977
1.1281.2031.2781.3531.4291.5041.692
1.2781.3531.4291.5041.6921.8051.8802.1052.2562.7073.008
.647 .722 .797 .872 .910 .947
1.0981.1731.2481.3231.3991.4741.662
1.2481.3231.3991.4741.6621.7751.8502.0752.2262.6772.978
.790 .895 .9451.0251.0601.105
1.2501.3231.3981.4731.5491.6251.775
———————————
13/1613/1613/1613/1613/1613/16
13/1613/1627/3227/3227/3227/3227/32
27/3227/3227/3227/327/87/87/87/87/87/87/8
——————
.506
.506
.527
.527
.527
.527
.527
.527
.527
.527
.527
.500
.500
.500
.500
.500
.500
.500
3/43/43/43/43/43/4
3/43/43/43/43/43/43/4
3/43/43/43/41111111
19/6419/6419/6419/6419/6419/64
19/6419/645/165/165/165/165/16
5/165/165/165/163/83/83/83/83/83/83/8
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.3125
.3125
.3125
.3125
.3125
.3125
.3125
182022242526
30323436384045
3436384045485056607280
Fig. 1
Fig. 2
Fig. 3
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
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0 1Inch
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTS (.354 INCH)DOUBLE OR NO FLANGE PROFILE
MATERIAL: Aluminum Alloy
FINISH: Clear Anodized
SPECIFICATIONS: O.D. Tolerance: 16 to 26 grooves is +.002/-.000 28 to 50 grooves is +.003/-.000 56 to 80 grooves is +.004/-.000
All pulleys have 2 set screws at 90°.
Catalog Number
INCH COMPONENT
O.D.D
HubProj.
F.D.± 1/64
CHubDia.
± 1/64
P.D.No.of
Grooves
ELength± 1/64
W
A 6A53-016DF0906A 6A53-017DF0906
A 6A53-018DF0908A 6A53-019DF0908A 6A53-020DF0908A 6A53-021DF0908A 6A53-022DF0908A 6A53-024DF0908A 6A53-025DF0908A 6A53-026DF0908A 6A53-028DF0908A 6A53-030DF0908A 6A53-032DF0908A 6A53-034DF0908A 6A53-036DF0908A 6A53-038DF0908A 6A53-040DF0908A 6A53-044DF0908A 6A53-045DF0908
A 6A53-034NF0908A 6A53-036NF0908A 6A53-038NF0908A 6A53-040NF0908A 6A53-044NF0908A 6A53-045NF0910A 6A53-048NF0910A 6A53-050NF0910A 6A53-056NF0910A 6A53-060NF0910A 6A53-062NF0910A 6A53-068NF0910A 6A53-072NF0910A 6A53-080NF0910
BBore+.001 -.000
.602
.639
.677
.714
.752
.790
.827
.902
.940
.9771.0531.1281.2031.2781.3531.4291.5041.6541.692
1.2781.3531.4291.5041.6541.6921.8051.8802.1052.2562.3312.5572.7073.008
.572
.609
.647
.684
.722
.760
.797
.872
.910
.9471.0231.0981.1731.2481.3231.3991.4741.6241.662
1.2481.3231.3991.4741.6241.6621.7751.8502.0752.2262.3012.5272.6772.978
.710
.740
.790
.815
.895
.895
.9451.0251.0601.1051.1731.2501.3231.3981.4731.5491.6251.7751.775
——————————————
11/1611/16
13/1613/1613/1613/1613/1613/1613/1613/1627/3227/3227/3227/3227/3227/3227/3227/3227/32
27/3227/3227/3227/3227/327/87/87/87/87/87/87/87/87/8
——
.506
.506
.506
.506
.506
.506
.506
.506
.527
.527
.527
.527
.527
.527
.527
.527
.527
.527
.527
.527
.527
.527
.500
.500
.500
.500
.500
.500
.500
.500
.500
.710
.740
.442
.468
.500
.500
.562
.625
.625
.625
.701
.776
.851
.9211.0001.0751.1501.3001.300
.9211.0001.0751.1501.3001.2501.2501.2501.2501.2501.2501.2501.2501.250
15/6415/64
19/6419/6419/6419/6419/6419/6419/6419/645/165/165/165/165/165/165/165/165/16
5/165/165/165/165/163/83/83/83/83/83/83/83/83/8
.1875
.1875
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.250
.3125
.3125
.3125
.3125
.3125
.3125
.3125
.3125
.3125
1617
1819202122242526283032343638404445
3436384044454850566062687280
Fig. 1
Fig. 2
Fig. 3
E#6-40SET SCREW
.40
DD/2
ØC ØB O.D. F.D. F.D. O.D.
.40
DE
W
ØB ØC
#8-32SET SCREW
D/2E
DD/2
ØBØCO.D.
W
#8-32SET SCREW
Fig. 1 Fig. 2 Fig. 3
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0 1Inch
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTS (.354 INCH)MOLDED WITH INSERTDOUBLE FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass Reinforced Insert - Aluminum, Knurled
ØA ØC
1/81/4
13/16
ØB
ØA* ØCF.D. O.D.
7/161/16
Fig. 1 Fig. 2
SPOT DRILL
SET SCREW
7/16
ØB
F.D. O.D.
9/641/4
13/16
SET SCREW
SPOT DRILL
Catalog Number
INCH COMPONENT
No.of
GroovesP.D.
A 6Z53-016DF0906
A 6Z53-017DF0906A 6Z53-017DF0908A 6Z53-018DF0906A 6Z53-018DF0908A 6Z53-019DF0906A 6Z53-019DF0908A 6Z53-020DF0906A 6Z53-020DF0908A 6Z53-022DF0906A 6Z53-022DF0908A 6Z53-025DF0908A 6Z53-025DF0910A 6Z53-025DF0912A 6Z53-028DF0908A 6Z53-028DF0910A 6Z53-028DF0912
O.D. F.D.B
Bore+.001 -.000
ADia.
CHubDia.
SetScrew
16
17171818191920202222252525282828
.602
.639
.639
.677
.677
.714
.714
.752
.752
.827
.827
.940
.940
.9401.0521.0521.052
.572
.609
.609
.647
.647
.684
.684
.722
.722
.797
.797
.910
.910
.9101.0231.0231.023
#6-32
#6-32#6-32#6-32#6-32#6-32#6-32#6-32#6-32#6-32#6-32#8-32#8-32#8-32#8-32#8-32#8-32
.82
.87
.87
.93
.93
.93
.93
.93
.931.061.061.191.191.191.241.241.24
.1875
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.1875
.250
.250
.3125
.375
.250
.3125
.375
7/16
3/83/83/83/83/83/83/83/83/83/81/21/21/21/21/21/2
11/16
11/1611/1611/1611/1611/1611/1611/1611/1611/1611/163/43/43/43/43/43/4
Fig. 1
Fig. 2
* 1/4" long insert in hub end only. Continued on the next page
*
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
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0 1Inch
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTS (.354 INCH)MOLDED WITH INSERTDOUBLE FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass Reinforced Insert - Aluminum, Knurled
Catalog Number
INCH COMPONENT
No.of
GroovesP.D.
A 6Z53-032DF0908A 6Z53-032DF0910A 6Z53-032DF0912A 6Z53-036DF0908A 6Z53-036DF0910A 6Z53-036DF0912A 6Z53-040DF0908A 6Z53-040DF0910A 6Z53-040DF0912A 6Z53-048DF0908A 6Z53-048DF0910A 6Z53-048DF0912
A 6Z53-060DF0910A 6Z53-060DF0912A 6Z53-060DF0916A 6Z53-072DF0910A 6Z53-072DF0912A 6Z53-072DF0916A 6Z53-080DF0910A 6Z53-080DF0912A 6Z53-080DF0916
O.D. F.D.B
Bore+.001 -.000
CHubDia.
323232363636404040484848
606060727272808080
1.2031.2031.2031.3531.3531.3531.5041.5041.5041.8051.8051.805
2.2562.2562.2562.7072.7072.7073.0083.0083.008
1.1731.1731.1731.3231.3231.3231.4741.4741.4741.7751.7751.775
2.2262.2262.2262.6772.6772.6772.9782.9782.978
1.441.441.441.571.571.571.761.761.762.022.022.02
2.462.462.462.922.922.923.293.293.29
.250
.3125
.375
.250
.3125
.375
.250
.3125
.375
.250
.3125
.375
.3125
.375
.500
.3125
.375
.500
.3125
.375
.500
3/43/43/47/87/87/87/87/87/87/87/87/8
7/87/87/87/87/87/87/87/87/8
Fig. 1
Fig. 2
Continued from the previous page
9/641/4
13/16
ØB ØCØ1/2O.D.
Fig. 1 Fig. 2
F.D.
7/163/16
SPOT DRILL
#8-32SET SCREW
ØB ØCØ5/8O.D. F.D.
7/163/16
SPOT DRILL
#10-32SETSCREW
5/32
7/85/16
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
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0 1Inch
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
FOR 9 mm BELTS (.354 INCH)MOLDED WITH INSERTSINGLE OR NO FLANGE PROFILE
MATERIAL: Pulley - Polycarbonate, Fiberglass Reinforced Insert - Aluminum, Knurled
Catalog Number
INCH COMPONENT
No.of
GroovesP.D.
A 6Z53-084SF0910A 6Z53-084SF0912A 6Z53-084SF0916A 6Z53-096SF0910A 6Z53-096SF0912A 6Z53-096SF0916
A 6Z53-120NF0912A 6Z53-120NF0916
O.D. F.D.B
Bore+.001 -.000
CHubDia.
848484969696
120120
3.1583.1583.1583.6093.6093.609
4.5114.511
3.1283.1283.1283.5793.5793.579
4.4814.481
3.383.383.383.833.833.83
——
7/87/87/8111
11
.3125
.375
.500
.3125
.375
.500
.375
.500
Fig. 1 Single Flange
Fig. 2 No Flange
3/163/81/2
7/8
ØB ØCØ5/8O.D.
SPOT DRILL
5/32
5/1613/16
ØB ØC F.D.Ø5/8O.D.
Fig. 1 Fig. 2
3/167/16
SPOT DRILL
#10-32SET SCREW #10-32
SET SCREW
3/16
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
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0 1Inch
FOR 9 mm BELTS (.354 INCH)MOLDEDDOUBLE FLANGE PROFILE
MATERIAL: Polycarbonate, Fiberglass Reinforced
SPECIFICATION: Pulleys with 16 to 28 grooves do not have webs.
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
ØB
ØCO.D.
3/16
F.D.
7/16ØB
O.D.
3/16 7/16
13/16
Fig. 1 Fig. 2 Fig. 3
ØB
O.D.7/16
7/813/16
1/4
ØC F.D.ØC F.D.
1/4
5/16
Catalog Number
INCH COMPONENT
No.of
GroovesP.D.
A 6L53-016DF0906
A 6L53-017DF0906A 6L53-018DF0906A 6L53-019DF0906A 6L53-020DF0906A 6L53-022DF0906A 6L53-025DF0908A 6L53-028DF0908
A 6L53-032DF0908A 6L53-036DF0908A 6L53-040DF0908A 6L53-048DF0908
A 6L53-060DF0910A 6L53-072DF0910A 6L53-080DF0910
O.D. F.D.B
Bore+.001 -.000
CHubDia.
16
17181920222528
32364048
607280
.602
.639 .677 .714 .752 .827 .9401.053
1.2031.3531.5041.805
2.2562.7073.008
.572
.609 .647 .684 .722 .797 .9101.023
1.1731.3231.4741.775
2.2262.6772.978
.82
.87 .93 .93 .931.061.191.24
1.441.571.762.02
2.462.923.29
.1875
.1875
.1875
.1875
.1875
.1875
.250
.250
.250
.250
.250
.250
.3125
.3125
.3125
11/16
11/1611/1611/1611/1611/163/43/4
3/47/87/87/8
7/87/87/8
Fig. 1
Fig. 2 Solid
Fig. 2
Fig. 3
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
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0 1Inch
Catalog Number
INCH COMPONENT
No.of
GroovesP.D. O.D. F.D.
BBore+.001-.000
CHubDia.
16
17181920222528
3236 4048
.602
.639 .677 .714 .752 .827 .9401.053
1.2031.3531.5041.805
.572
.609 .647 .684 .722 .797 .9101.023
1.1731.3231.4741.775
.82
.87 .93 .93 .931.061.191.24
1.441.571.762.02
.1875
.1875
.1875
.1875
.1875
.1875
.250
.250
.250
.250
.250
.250
11/16
11/1611/1611/1611/1611/163/43/4
3/47/87/87/8
Fig. 1
Fig. 2 Solid
Fig. 2
A 6L53-016SF0906
A 6L53-017SF0906A 6L53-018SF0906A 6L53-019SF0906A 6L53-020SF0906A 6L53-022SF0906A 6L53-025SF0908A 6L53-028SF0908
A 6L53-032SF0908A 6L53-036SF0908A 6L53-040SF0908A 6L53-048SF0908
F.D.ØC
ØB
O.D.
ØB
F.D.ØC
1/16
O.D.
1/2 1/16
7/163/16
13/1613/16
7/16
1/4
1/4
Fig. 1 Fig. 2
FOR 9 mm BELTS (.354 INCH)MOLDEDSINGLE FLANGE PROFILE
MATERIAL: Polycarbonate, Fiberglass Reinforced
SPECIFICATION: Pulleys with 16 to 28 grooves do not have webs.
GT®2 TIMING BELT PULLEYS • 3 mm PITCH
For FHT®-3 Timing Belts see: A 6B20M... and A 6G20M...
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Metric
0 10
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
THE BETTER WAY TO FASTEN ROTATING COMPONENTS.Solves…Phasing, Timing, Positioning and Frequent Removal Problems
HERE’S HOW IT WORKS:Two slots are machined into the hub, one oriented radially, the other angularly, to create a transverse wedge which remains attached to the solid portion of the hub on one side. The resultant cantilevered clamping section has a tapped hole to accept a cap screw which passes through a clearance hole in the solid portion of the hub, and into a threaded hole in the transverse wedge section. As the screw is tightened, the cantilevered section clamps the shaft securely. The screw can be tightened and released repeatedly without marring the shaft or affecting its torque transmitting abilities.
PROVED MOST EFFECTIVE:For precision application – Lab tests proved Fairloc® to be superior to all other comparable fasteners. For high torque application – Torques up to 400 lbf in. are obtained with a 5/8" bore Fairloc® hub.
TYPICAL APPLICATION AREAS FOR FAIRLOC® INCLUDE:Computer Tape Drives, Aerospace Components, Aircraft Instrumentation, Aircraft Fuel Control Systems, Machine Tools, N/C Machines, Computer Input / Output Systems, Military Fire Control Systems, Medical Equipment, Business Machines, Optical Equipment, Power Drives.
FEATURES: Full Use Of The Bore - Gives maximum support to the component, reduces wobble or misalignment.Easy Adjustment - Fairloc® replaces set screws and clamps, eliminates marred shafts; components can be repositioned with a single hex key adjustment.Compact, Self-Contained Design - When available space or access is limited, Fairloc’s® small hub envelope is a distinct advantage.Very High Reliability
Call on our Engineering Department to discuss the advantagesof applying the Fairloc® concept to your designs.
FAIRLOC® • THE INTEGRAL FASTENER
SOLID HINGEPORTION
HUB
TRANSVERSESLOT
RADIAL SLOTFRONT BACK
* Patented® Registered trademark
B C D EAFastening Method
FASTENER SELECTOR GUIDE
No
Yes
No
No
No
No
Yes
No
No
No
Yes
Yes
No
No
No
No
Yes
No
Yes
Yes
Clamps
*Fairloc®
Keys
Pins
Set Screws
Legend
A – Shaft remains smooth
B – Self-contained (no additional inventory)
C – Component is fully supported
D – Easy adjustment
E – Can be pinned if desired
Yes
Yes
No
No
No
Pitch
.0801/5
3 mm HTD®
5 mm HTD®
2 mm GT®23 mm GT®2
2-272-762-1212-1472-1672-185
Page #
Fairloc® Hub Pulleys
I N C H
PHONE: 516.328.3300 • FAX: 516.326.8827 • WWW.SDP-SI.COM
A-TYPE SHAFTLOC®
PATENTED | SELF-LOCKING | VIBRATION-RESISTANT | INSTALLED WITH STANDARD TOOLS | REUSABLE
MATERIAL: 416 Stainless Steel, Passivated
SPECIFICATIONS:These vibration-resistant fasteners employ asymmetricthreads to self-lock. The two-piece unit uses the wedgingaction between the shallow thread inclines of the nut andbolt for self-locking when the nut encounters resistance.The nut turns freely until it contacts parts being clamped together and additional turns wedge them into a lockedand vibration-resistant condition.
Special sizes available upon request
Sold in Pairs
Catalog NumberA
Dia.+.000 -.002
L C D E
A 7Z38-0812 .75A 7Z38-0816 .2500 1.00 .16 .44 .23A 7Z38-0820 1.25A 7Z38-1012 .75A 7Z38-1016 .3125 1.00 .20 .50 .27A 7Z38-1020 1.25
A
NUT
PATENTEDTHREAD
BOLT
CLAMPED PARTS
E
.75
LCD
ØA
BOLT NUT
5-6