Spring Plungers

Spring PlungersPressure Pins : 0.5 - 130N, M3 - M24

M E C H A N I C A LBSMBSM-PBSM-SS

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Product information updated 1st April 2011 and subject to change. Please contact Sales for the latest prices and availibility.

ondrives

N

Threaded pin glued in

D

T

F1

F2T1

D1

HL S

BSM3BSM4BSM5BSM6BSM8BSM10BSM12BSM16BSM20BSM24

BSM4PBSM5PBSM6PBSM8PBSM10PBSM12PBSM16P

BSM5SSBSM6SSBSM8SSBSM10SSBSM12SS

£4.54£3.48£3.39£3.53£4.16£4.66£6.05£6.70£7.91

£12.74

£4.05£3.95£4.05£4.73£5.64£7.15£8.73

£9.98£9.95

£11.08£15.12£20.48

PartNumber D D1 L H T T1 N S

Approx.weight

g

Spring forceInitial

PressureF1 ca. N

FinalPressureF2 ca. N

PriceEach1 - 19

M3M4M5M6M8M10M12M16M20M24

M4M5M6M8M10M12M16

M5M6M8M10M12

1.01.52.42.73.54.06.07.5

10.012.0

1.52.42.73.54.06.07.5

2.42.73.54.06.0

10151820222228324052

15182022222832

1820222228

1.51.52.32.53.03.04.05.07.0

10.0

1.52.32.53.03.04.05.0

2.32.53.03.04.0

1.52.02.02.53.03.55.06.08.0

10.0

2.02.02.53.03.55.06.0

2.02.53.03.55.0

1.00.60.81.01.41.42.02.53.03.0

1.00.60.81.01.41.42.0

0.81.01.41.42.0

0.40.60.81.01.21.62.02.52.52.5

0.60.81.01.21.62.02.5

0.81.01.21.62.0

0.71.31.52.02.53.04.05.06.08.0

1.31.52.02.53.04.05.0

1.52.02.53.04.0

0.556799

10456080

56799

1045

5678

10

3162020353555

100120130

162020353555

100

1717293147

0.40.81.32.56.09.0

16.035.066.3

122.2

0.81.32.56.09.0

16.035.0

1.32.56.09.0

16.0

MaterialSteel, quality class 5.8.Pressure Pin: Steel or Plastic.Stainless Steel version in 1.4305.Surface Finish: Black oxide finish. Pressure pin in steel or stainless steel, both hardened.

Other Info.Spring plungers serve for positioning and indexing, and also as hold-down and knock-out pins. They are used, for example, in fixture and tool shops.Fitting key available. Please ask for a quote.

STEEL

PLASTIC END - STEEL BODY

STAINLESS

Discounts: 20+ -15% | 40+ -20% | 60+ -25% | 100+ -30%

Spring Plungers (Secured with Long-Lok)Pressure Pins : 6 - 100N, M5 - M16

M E C H A N I C A L BSM-/LOKBSM-P/LOKBSM-SS/LOK


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Nthreaded pin glued in

D

T

F1

F2

T1

D1

HL

L1 L2

S

BSM5/LOKBSM6/LOKBSM8/LOKBSM10/LOKBSM12/LOKBSM16/LOK

BSM5P/LOKBSM6P/LOKBSM8P/LOKBSM10P/LOKBSM12P/LOKBSM16P/LOK

BSM5SS/LOKBSM6SS/LOKBSM8SS/LOKBSM10SS/LOKBSM12SS/LOK

£3.93£4.05£4.59£5.11

£10.10£12.82

£4.35£4.50

£10.54£6.02

£11.25£13.96

£12.96£13.18£14.82£16.86£26.82

PartNumber D D1 L L1 L2 H T T1 N S

Price Each 1 - 19

M5M6M8M10M12M16

M5M6M8M10M12M16

M5M6M8M10M12

2.42.73.54.06.07.5

2.42.73.54.06.07.5

2.42.73.54.06.0

182022222832

182022222832

1820222228

7789

1014

7789

1014

7789

10

Approx2

Coarsesof

Thread

Approx2

Coarsesof

Thread

Approx2

Coarsesof

Thread

2.32.53.03.04.05.0

2.32.53.03.04.05.0

2.32.53.03.04.0

2.02.53.03.55.06.0

2.02.53.03.55.06.0

2.02.53.03.55.0

0.81.01.41.42.02.5

0.60.81.01.41.42.0

0.81.01.41.42.0

0.81.01.21.62.02.5

0.81.01.21.62.02.5

0.81.01.21.62.0

1.52.02.53.04.05.0

1.52.02.53.04.05.0

1.52.02.53.04.0

MaterialSteel, quality class 5.8. Pressure Pin: Steel, plastic or Stainless Steel 1.4305. Long-Lok Thread: NylonSurface Finish: Black oxide finish. Stainless steel bright finish. Pressure pin in steel or stainless steel, both hardenedOther Info.Advantages: Secure in the case of vibrations; Extremely high unscrewing movement; Secure in every position; Saves assembly and stock keeping; For repeateduse; Problem solver from M3 to M16. Spring plungers serve for positioning and indexing, and also as hold-down and knock-out pins. They are used, for example,in fixture and tool shops. Fitting key available. Please ask for a quote.

STEEL


STAINLESS

±0.5

BSM5/LOKBSM6/LOKBSM8/LOKBSM10/LOKBSM12/LOKBSM16/LOK

BSM5P/LOKBSM6P/LOKBSM8P/LOKBSM10P/LOKBSM12P/LOKBSM16P/LOK

BSM5SS/LOKBSM6SS/LOKBSM8SS/LOKBSM10SS/LOKBSM12SS/LOK

PartNumber

Initial Spring ForcePressureF1 ca. N

Final Spring ForcePressureF2 ca. N

Screwing-inMoment

Min

Screwing-outMoment

Mout

Approx.Weight

g

6799

1045

6799

1045

5678

10

2020353555

100

2020353555

100

1717293147

0.100.250.400.701.004.20

0.100.250.400.701.004.20

0.100.250.400.701.00

0.250.450.600.801.204.30

0.250.450.600.801.204.30

0.250.450.600.801.20

1.32.56.09.0

16.035.0

1.32.56.09.0

16.035.0

1.32.56.09.0

16.0

STEEL


STAINLESS

Discounts: 20+ -15% | 40+ -20% | 60+ -25% | 100+ -30%

Spring PlungersBall End : 1.5 - 160N, M3 - M20

M E C H A N I C A LBPMBPM-SS


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D

N

F1

F2

D1

HL

D D1 L H N

InitialPress

F1 ca. N

InitialPress

F2 ca. N

Appx.weight

gSteel Stainless StainlessSteel

Slide arresting feature

BPM3 BPM3SS M3 1.5 7 0.5 0.4 1.5 3 0.2 £1.90 £5.09BPM4 BPM4SS M4 2.5 9 0.8 0.6 4 10 0.6 £1.44 £4.42BPM5 BPM5SS M5 3.0 12 0.9 0.8 6 11 0.9 £1.44 £4.42BPM6 BPM6SS M6 3.5 14 1.0 1.0 9 13 1.5 £1.44 £4.42BPM8 BPM8SS M8 5.0 16 1.5 1.2 15 30 3.5 £1.93 £5.73BPM10 BPM10SS M10 6.0 19 2.0 1.6 20 35 7.0 £2.04 £6.57BPM12 BPM12SS M12 8.0 22 2.5 2.0 30 55 10.0 £3.07 £8.01BPM16 BPM16SS M16 10.0 24 3.5 2.5 65 125 24.0 £4.10 £7.89BPM20 BPM20SS M20 12.0 30 4.5 2.5 80 160 44.3 £6.70 £10.08

MaterialSteel, quality class 5.8, or Stainless Steel.

Surface Finish: Black oxide finish. Ball hardened, bright.Stainless steel, bright.

Part Number Price Each 1 - 19

Discounts: 20+ -15% | 40+ -20% | 60+ -25% | 100+ -30%

Spring Plungers (Secured with Long-Lok)Ball End : 1.5 - 125N, M3 - M16

M E C H A N I C A L BPM-/LOKBPM-SS/LOK


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D N

F1

F2

D1

H

BPM3 - BPM6

BPM8 - BPM16

L

L1 L2

L2 L1

Slide arresting feature

MaterialSteel, quality class 5.8, or Stainless Steel.Long-Lok thread in nylonSurface Finish: Black oxide finish. Ball hardened, bright. Stainless steel, bright.

Other Info.Advantages:• Secure in the case of vibrations.• Extremely high unscrewing movement• Secure in every position• Saves assembly and stock keeping• For repeated use• Problem solver from M3 to M16

Initial SpringForce Pressure

F1 ca. N

Final SpringForce Pressure

F2 ca. N

Screwing-inMoment

Min

Screwing-outMoment

Mout

Approx.Weight

gSteel Stainless

BPM3/LOK BPM3SS/LOKBPM4/LOK BPM4SS/LOKBPM5/LOK BPM5SS/LOKBPM6/LOK BPM6SS/LOKBPM8/LOK BPM8SS/LOKBPM10/LOK BPM10SS/LOKBPM12/LOK BPM12SS/LOKBPM16/LOK BPM16SS/LOK

Part Number

1.54.06.09.0

15.020.030.065.0

3101113303555

125

0.100.100.100.250.400.701.004.20

0.250.250.250.450.600.801.204.30

0.20.60.91.53.57.0

10.024.0

D D1 L L1 L2 H N Steel StainlessSteel Stainless

BPM3/LOK BPM3SS/LOK M3 1.5 7 4 0.5 0.4 £2.07 £7.62BPM4/LOK BPM4SS/LOK M4 2.5 9 5 Approx 0.8 0.6 £2.07 £6.78BPM5/LOK BPM5SS/LOK M5 3.0 12 6 2 0.9 0.8 £2.14 £6.90BPM6/LOK BPM6SS/LOK M6 3.5 14 7 Coarses 1.0 1.0 £2.08 £6.90BPM8/LOK BPM8SS/LOK M8 5.0 16 8 of 1.5 1.2 £2.58 £8.75BPM10/LOK BPM10SS/LOK M10 6.0 19 9 Thread 2.0 1.6 £2.73 £9.91BPM12/LOK BPM12SS/LOK M12 8.0 22 10 2.5 2.0 £7.31 £17.22BPM16/LOK BPM16SS/LOK M16 10.0 24 14 3.5 2.5 £9.47 £21.45

Part Number Price Each 1 - 19±0.5

Discounts: 20+ -15% | 40+ -20% | 60+ -25% | 100+ -30%

Plain Spring PlungersSmooth Execution Ball End : 4 - 8mm Dia.

M E C H A N I C A LBSDBSD-SS


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MaterialBody: BSD: Pom (Delrin) BSD-SS: W.-Nr 1.4305 (303) Stainless SteelSleeve: BSD: Thermoplastic BSD-SS: Stainless SteelBall: W.-Nr 1.4034 (420) Stainless SteelSpring: W.-Nr 1.4310 (301) Stainless SteelSurface Finish: BSD: Ball hardened, bright BSD-SS: Bright

D D1 D2

F1

F2

1

L H

H

PLASTICBSD-4BSD-5BSD-6BSD-8

STAINLESSBSD-4SSBSD-5SSBSD-6SSBSD-8SS

4568

4568

3.04.05.06.5

3.04.05.06.5

4.65.66.58.5

4.65.66.58.5

5679

5679

0.71.01.51.8

0.71.01.51.8

3466

3466

77

1212

77

1212

0.170.350.661.46

0.300.601.002.00

£1.38£1.49£1.60£1.93

£2.35£2.38£2.46£3.06

PartNumber

Price Each 1 - 19D D1 D2 L H

InitialPressureF1 Ca N

FinalPressureF2 Ca N

ApproxWeight

g

+0.1

D D1 D2

F1

F2

1

L H

H+0.1

BSD Type - Plastic

BSD-SS Type - Stainless

Discounts: 20+ -15% | 40+ -20% | 60+ -25% | 100+ -30%

Threaded Spring ElementsZinc Plated Body : M12x1.5 - M20x1.5

M E C H A N I C A LGN.38


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MaterialBody: Threaded zinc-plated, black oxide and hardened Steel Ends: With female thread (type I), pointed nose (type K), semi-spherical (type H) & prism (type P)Steel Spring: Normal end-force (bright zinc-plated) or heavy end-force (tropical yellow zinc-plated).

Other Info.These spring elements are universal pressure elements used for detenting, positioning or for clamping pieces by means of the pressure of a loaded spring.

PartNumber

GN.38221GN.38222GN.38223GN.38224GN.38226GN.38227GN.38228GN.38229GN.38231GN.38232GN.38233GN.38234

GN.38261GN.38262GN.38263GN.38264GN.38266GN.38267GN.38268GN.38269GN.38271GN.38272GN.38273GN.38274

9.09.09.09.0

12.012.012.012.014.514.514.514.5

9.09.09.09.0

12.012.012.012.014.514.514.514.5

-M4

---

M5---

M6--

-M4

---

M5---

M6--

7.67.67.67.68.88.88.88.8

11.411.411.411.4

7.67.67.67.68.88.88.88.8

11.411.411.411.4

282828283838383847474747

282828283838383847474747

191919192727272733333333

191919192727272733333333

333333334444

333333334444

66668888

10101010

66668888

10101010

-8---

10---

12--

-8---

10---

12--

4.5---

6.0---

7.2---

4.5---

6.0---

7.2---

-6---7---9--

-6---7---9--

888-

101010-

121212-

888-

101010-

121212-

---4---6---8

---4---6---8

161616162525252540404040

181818184545454565656565

3535353571717171

130130130130

56565656

125125125125210210210210

101013123030302966656564

101012123232313167676365

M12x1.5M12x1.5M12x1.5M12x1.5M16x1.5M16x1.5M16x1.5M16x1.5M20x1.5M20x1.5M20x1.5M20x1.5

M12x1.5M12x1.5M12x1.5M12x1.5M16x1.5M16x1.5M16x1.5M16x1.5M20x1.5M20x1.5M20x1.5M20x1.5

HIKPHIKPHIKP

HIKPHIKPHIKP

d1 d2 d3 L I I1 I2 I3 r s s1 s2Preload(N)

Max.load(N)

Weightg

PriceEach1 - 19

£8.53£9.40£7.69

£10.09£9.88

£10.60£9.13

£12.09£12.06£13.45£11.81£14.74

£8.53£9.40£7.69

£10.09£9.88

£10.60£9.13

£12.09£12.06£13.45£11.81£14.74

dType

L

I3

d2

I

s

d3

d1

d

I2

s1

I2 I2 I2r

d1

90°120°

d1 d1

s1 s2

s1

I1

Type I Type K Type H Type P

NORMAL END-FORCE (BRIGHT ZINC-PLATED)

HEAVY END-FORCE (TROPICAL YELLOW ZINC-PLATED)

Spring Pressure

Discounts: 20+ -5% | 40+ -10% | 60+ -15% | 100+ -20%

Threaded Ball Spring PlungersWith Limit Switch : M6 - M10



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MaterialBody: Hardened nickel-plated steel partially coated with MVK and locking patch for threads.Ball: Hardened steelSpring: Stainless steelSupply Cable: Grey two-phase for normally open contacts or black cable for normally closed contacts. Maximum Tensile Load: 20N.

Other Info.Working Temperature: -40°C to +170°C.Electrical characteristic of the switch:Electrical Supply: 20 mA DC / 50 mA DCVoltage: 24VSafety Standard: IP40Supply Cable: diameter 2.8mm, 2 phasesWorking Temperature: -10°C to +50°CAverage Switch Life-span: 5,000,000 switching.

On request and for sufficient quantities PFB blue instant locking patch for threads are available; working temperature from -50°C to +90°C.

Warning: if the screw-in thread is earthed the blue cable has to be connected to the mass.

Threaded bolt spring plungers are used for locking or releasing piece by using a built-in electrical switch.

PartNumber

GN.33801GN.33802GN.33803

GN.33811GN.33812GN.33813

M6M8

M10

M6M8

M10

345

345

2.82.82.8

2.82.82.8

202327

202327

101010

101010

0.40.50.6

0.40.50.6

0.81.01.2

0.81.01.2

5.57.08.0

5.57.08.0

68

10

68

10

131620

131620

202025

202025

d d1 d2 I I1 I2±0.1 I3

±0.1s

Preload(N)

Max.load (N)

Weightg

PriceEach1 - 19

£84.60£84.68£89.53

£84.60£84.68£89.53

Spring Pressure

sI

I

I1

R min. 7

d

d1 d2

I2

I3

Generally open

Generally closed

brown

blue

brown

blue

CLOSED CONTACT

OPEN CONTACT

Discounts: 20+ -5% | 40+ -10% | 60+ -15% | 100+ -20%

Ball Spring PlungersThreaded and Double Ended Smooth : M6 - M10, 2 - 6.5mm Dia.

M E C H A N I C A L GN.32GN.33


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MaterialThreaded:Body: Acetal resin with screwdriver slotted head.Spring: Stainless steelBall: Hardened stainless steel or acetal resin ballWorking Temperature (Acetal ball): -30°C to +50°C

Double Ended:Body: Brass.Spring: Stainless steelBall: Hardened stainless steel.Double ended spring plungers are the result of a furtherdevelopment of threaded spring plungers for special applications.

I I1

d

II1

d2

dd1

d1

Threaded (Plastic Body)

Double Ended Smooth (Brass Body)

DOUBLE ENDED

PartNumber

GN.33301GN.33302GN.33303

GN.33321GN.33322GN.33323

GN.32305GN.32307GN.32309GN.32311GN.32313GN.32315

M6M8M10

M6M8M10

2.02.53.04.06.06.5

3.55.06.0

3.55.06.0

2.53.04.05.07.08.0

---

---

2.523.024.035.037.038.03

141619

141619

5.37.39.0

10.814.018.0

1.01.52.0

1.01.52.0

0.650.800.901.202.002.10

122020

122020

1.32.02.53.54.06.0

173545

173545

2.54.57.58.0

12.015.0

123

123

111135

d d1 d2+0.05 I I1Preload

(N)Max. Load

(N)Weight

g

PriceEach1 - 19

£1.39£1.76£2.08

£1.62£2.01£2.25

£2.98£2.98£3.07£3.07£3.53£3.81

Spring Pressure

THREADED - HARD STAINLESS BALL

THREADED - ACETAL BALL

Discounts: 20+ -5% | 40+ -10% | 60+ -15% | 100+ -20%

Threaded Ball Spring PlungersStainless Steel with Screwdriver Slotted Head : M4 - M12



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L

L2 L1

d1 d

L

L3

L

D

M4 & M5 M6 - M12

MaterialBody: AISI 303 Stainless Steel.Ball: Hardened Stainless Steel.Spring: Stainless Steel.

Other Info.The screwdriver slot on the head of the plunger is also useful to provide an indication ofthe position of the blocked element.AISI 304 Stainless Steel offers high corrosion resistance and allows use on machines andequipment in those sectors where laws or particular hygienic, climatic and environmentalfactors make it mandatory to use corrosion resistant materials.

PartNumber

GN.33911GN.33921GN.33931GN.33941GN.33951GN.33961

M40M50M60M80M10M12

2.53.03.54.56.08.0

060810131618

06.508.509.011.014.015.0

0.80.91.01.52.02.5

3.04.05.05.56.07.0

5.06.7----

080811182426

141418314549

020506101525

d d1 D L L1 L2 L3Preload

(N)Max. Load

(N)Weight

g

PriceEach1 - 19

£7.29£7.45£8.46

£11.06£12.67£14.67

Spring Pressure

Discounts: 20+ -5% | 40+ -10% | 60+ -15% | 100+ -20%

Threaded Bolt Spring PlungersLong Stroke With Thread Locking Patch : M10 - M16



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MaterialBody: Black oxide steel partially coated with PFB blue instant locking patch for threads.Plunger: Black oxide ground hardenedSpring: Steel with normal end-force or with heavy end-force (non-burnished hexagon socket)

Other Info.Working Temperature: -50°C to +90°C.

On request and for sufficient quantities, MVK red locking patch for threads are available; Working temperature from -40°C to +170°C.

Long stroke threaded spring plungers are normally used for machining metal sheet as ejectors,for push-on or push-off operations or as cushioners.

L

I I1

d d1d2

PFB Blue Instant Locking Patch

PartNumber

GN.34252GN.34254GN.34256GN.34257GN.34259

GN.34264GN.34266GN.34269

M10M12M16M16M16

M12M16M16

4.05.58.08.08.0

5.58.08.0

7.89.5

13.413.413.4

9.513.413.4

3543585898

435898

2535353535

353535

0810152030

101530

0604090413

121020

1618332347

445780

1323545583

235583

d d1 d2 L I I1Preload

(N)Max. load

(N)Weight

g

PriceEach1 - 19

£28.39£31.51£38.64£40.47£61.04

£32.48£39.52£61.81

Spring Pressure

NORMAL END FORCE

HEAVY END FORCE

Discounts: 20+ -5% | 40+ -10% | 60+ -15% | 100+ -20%

Striker BushingsBurnished Ground Hardened Steel



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MaterialBurnished ground hardened steel.

Other Info.Striker bushings are used together with ball or bolt spring plungers when a contact surface is requiredwith high wear resistance. In particular they are recommended for use with plungers with high-loadedsprings and plungers with reinforced springs.

PartNumber

GN.34201GN.34202GN.34203GN.34204GN.34205GN.34206GN.34207

04050608101216

1.52.02.03.04.06.08.0

05060810121418

M40M50M60M80M10M12M26

01010204071226

D m6 d d1 L ±0.05 I1 *Weight

g

PriceEach1 - 19

D

L

90°

I2

d + d1 √2I2 = I1 - d

2 2

I1

d

d1

d1

£8.35£8.35£8.35£8.73

£10.32£10.66£19.30

See

the

corr

esp

on

din

gp

lun

ger

See

the

corr

esp

on

din

gp

lun

ger

* Threading of the corresponding plunger

Discounts: 20+ -5% | 40+ -10% | 60+ -15% | 100+ -20%

Eccentric Bushings & Indent BlocksM E C H A N I C A L GN.37

GN.34


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ondrives

MaterialEccentric Bushings: Burnished steel.Indent Blocks: Hardened black oxide sintered steel.

Other Info.Eccentric Bushings: eccentric bushings are used to correctly position side thrust pins. Using the eccentric bushings, the thrust pin can be positioned veryprecisely to adopt to the tolerance of the piece to be mounted.Indent Blocks: indent blocks are used together with spring plungers for detenting or positioning sliding parts, flaps or for similar applications.

D

L

90°

90°

h min.

d

f

b

b

d1

h4.6

8

I2

f1±0.05

f±0.05

15

15

GN614 / GN615 / BSD

D1

h1

Eccentric Bushings

Indent Blocks

PartNumber

GN.37011GN.37013GN.37016GN.37018

6101216

12161825

12161825

M4M4M4M6

10121418

2223

9.911.913.917.9

59

1335

d D D1 H7 f h h1 L-0.2

Weightg

PriceEach1 - 19

£30.47£31.23£39.39£41.73

ECCENTRIC BUSHINGS

PartNumber

GN.34221GN.34222

08.510.5

3.44.5

4.34.3

55

3.53.5

68

0.91.0

M80M10

0.81.0

1011

h b±0.1 d1 f f1 Dim I2 Dim I2Weight

g

PriceEach1 - 19

£4.18£4.38

INDENT BLOCKS

GN.32 GN.33

Discounts: 20+ -5% | 40+ -10% | 60+ -15% | 100+ -20%

Documents

Spring Plungers