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DryLin®
DryLin®
Design Guide
®®
DryLin® NLow ProfileGuide Rails
The DryLin® N series offers extremely low profilesin several widths, and is therefore ideal in tight spaceconstraints. Like all DryLin® products the carriagesglide smoothly on anodized aluminum rails withoutthe need for messy lubricants. They are also avail-able in preloaded versions for reducing runningclearance. DryLin® N is a particularly low-coat alter-native to miniature ball bearing systems, and is moreprecise and economical when compared to manycustom-machined or simple plastic parts.
DryLin® WFlexible Guiding System
DryLin® NLow Profile Guides
17mm 27mm 40mm 80mm
Width in mm
N17 ↕ 6mm
N27 ↕ 9.5mm
N40 ↕ 9.5mm
N80 ↕ 12mm
DryLin® W Flexible LinearGuide System
DryLin® W was developed to promote designflexibility and quick assembly in both single anddouble rail configurations. DryLin® W is also offeredas a pre-mounted, bolt-on system - eliminating theneed for timely shaft alignment and carriageassembly. All DryLin® W systems are available withour enhanced J200 liners, which reduces frictionand optimizes bearing life.
• The single rail system, which canincorporate a float ing square linearbearing, compensates efficiently for ex -treme shaft misalignments.
• The double rail system totally eliminates theneed for shaft alignment, offering a single,bolt-on solution.
• Available in 316 Stainless Steel
Not actual sizeNot actual size
The DryLin® StoryWe perform over 2,500 tests per year onhundreds of bearing materials specificallyformulated for maintenance-freeoperation, without lubrication. As a resultof this testing we have determined thatour iglide® J, J200 and T500 are idealmaterials for most linear bearingapplications due to their excellent wearproperties and low coefficients of friction.Unlike older bearing technology, DryLin®
Linear Plain Bearings are engineered torun dry, without the need for messylubricants or costly maintenance anddowntime; expensive and cumbersomegrease lines may be eliminated from thedesign entirely. Dirt, dust, and otherabrasives will not be drawn into thebearing surface, making DryLin® ideal foraggressive environments, as well as forhigh moisture, wash-down, and evenunderwater applications.
DryLin®Overview
Double shaftAvailable in round only
Single shaftAvailable in square or round
↕
↕ 36mm
27mm
40, 80 mm↕
60mm
80mm
20 mm
Shaft size 10
Shaft size 06
Shaft size 16
Shaft size 20
30 mm
18mm
14mm ↕
20 mm 20 mm
16 mm 16 mm
10 mm
6 mm
http://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTE
DryLin® TLinear Guide System
DryLin® RLinear Bearings/Shafting
DryLin® Slide Tables
Liners Adapters & Liners Solid plastic
Pillow Blocks Shafting Options
Not actual size
DryLin® RShaft Guide
DryLin® R is dimensionally interchangeable with otherlinear bearings, but offers clean, cost-effective results,suitable for many shaft materials. The liner offersexcellent clearance, and makes DryLin® R suitablefor use in extremely wet and dirty environments –they are also easily replaceable. DryLin® S shaftingis the optimal shafting for the iglide® J material -increasing lifetime up to 50% vs. steel shafting.
• Hard anodized aluminum shafts used withDryLin® linear bearings are ideal forapplications in which weight reductionand/or high service life is re quired.
• DryLin® with stainless steel shafts provideexcellent che mical resistance and is an idealsolution for applications in the food andpackaging industry
DryLin®
Slide Tables
SLW/HTSDryLin® Slide Tables are maintenance-free and offeredin both belt and screw drives for simple bolt-onassembly. Offering design flexibility and corrosion-resistance, they are also ideal as a low cost solu-tions for reduced production and assembly time.
ZLWHigh speed belt-driven tables for velocities up to15 fps (5m/s)
SET Easy TubeSimple, but and effective and solid design: that’sthe new DryLin® SET Easy Tube. A complete systemfrom few components for simple linear adjustments.
DryLin® TProfile Guide Rails
DryLin® T guide rails are dimensionallyinterchangeable with recirculating ball guides,but offer cost-effective, maintenance-freeoperation. Series 01 offers adjustableclearance, and the mini 04 series is ideal foruse in tight design constraints. Both useiglide® J glide pads and hard-anodizedaluminum rails for optimal friction and wearresistance.
• Permits adjustments to the play ofguidance systems (Series 01)
• Very resistant to dirt • Very low coefficient of friction and
wear
TW-HKA
Size 09Size 12
Size 15
Size 20
Size 30
Size 25↕
↕
↕
Size 15
24mm
10mm
13mm
16mm
30mm
36 mm
42mm
↕
↕ ↕ ↕ TW-01
tt
tt
tt
t
tt
tttttt
tt
tt
t
tt
t
t
t
HTS - Tough and AdaptableAvailable in 3 sizes andseveral shafting types andscrew materials
ZLW - Linear ActuatorCompact and Lightweight
SLW - Rigid and Low ProfileBased on DryLin® W doublerail system
Not actual sizeNot actual size
TK-04 Miniature
DryLin® Selection Guide
DryLin® N Low Profile Guides• Low profile for tight design constraints• Low cost• No lubrication needed• Preloaded systems available for reduced
clearance• Extremely lightweight
DryLin® W Flexible Guiding System• Modular design offers flexible design
configurations• Low cost• 316 stainless systems available• Double rail eliminates the need for shaft
alignment• Easy to assemble
DryLin® T Linear Guide System• Low cost alternative to ball bearing
profile systems• Dimensionally interchangeable with ball
bearing system• No lubrication or maintenance required• Adjustable clearance standard on some
series• Lightweight• Corrosion-resistant
DryLin® R Linear Bearings/Shafting• Low cost alternative to recirculating ball
bearings• Dimensionally interchangeable with ball
bearings and PTFE-lined systems• Replaceable liners• Corrosion-resistant• Works on many shaft materials, even
aluminum and 300-series stainless steel
DryLin Slide Tables• Bolt-on systems reduce design and
assembly time• Available in screw and belt-actuated
designs• Corrosion-resistant materials available• Cost-effective compared to other ball
bearing stages
Storage Solutions for a Tape Library
Flatbed Ink-Jet Printer
Mailroom Machinery
Machining Center
High Dirt Resistance
MaximumStaticLoad
MaximumSurface Speed
Linear
MaximumApplication
Temperature
Rail/ShaftMaterial
OnlineCalculator
Section
225 lbs 49.2 ft/s (15 m/s)-40°F to 194°F(-40°C to +90°C)
anodized aluminum 26
Mounted System2,877 lbs
Single Bearing719 lbs
49.2 ft/s (15 m/s)-40°F to 194°F(-40°C to +90°C)
hard anodizedaluminum,
anodized aluminum316 stainless steel
27
3,140 lbs 49.2 ft/s (15 m/s)-40°F to 194°F(-40°C to +90°C)
hard anodizedaluminum 28
>11,240 lbs 49.2 ft/s (15 m/s)
iglide® J-40°F to 194°F(-40°C to +90°C)
iglide® T500148° to 482°F(-100° to 250°C)
hard anodizedaluminum,
anodized aluminum,case hardened
steel,chrome plated steel,
stainless steel,
29
Screw driven2,200 lbs
Belt driven65 lbs (300 N)
Screw Driven3.9 fpm(x m/s)
Belt Driven16.4 fpm(5 m/s)
-40°F to 194°F(-40°C to +90°C)
HTC High Temp350°F
Screw DrivenHard anodizedaluminum,steel,
stainless steel,chrome-platedBelt Driven
Hard anodizedaluminum
30
Online LifetimeCalculation
www.igus.com
Online LifetimeCalculation
www.igus.com
Online LifetimeCalculation
www.igus.com
Online LifetimeCalculation
www.igus.com
http://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTEhttp://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTEhttp://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTEhttp://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTE
DryLin®: Sliding instead of RollingDryLin® is a range of maintenance-free, lubrication-free linear slide bearings consisting of four main product lines. Principal features, in addition to zero maintenance, are strength and resistanceto external influences such as corrosion, moisture, chemicals, heat and impact.
®
DryLin®
45.6
DryLin
®Linea
rPlain Bea
rings
Internet: http://w
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us.co
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Features• Predictable, long life• Self lubricating and oil-free• Maintenance-free• Dirt and dust resistant• Replaceable liners• Supports high static loads• Needs no messy grease lines• Lightweight• Runs on soft and hard shafts• Constant coefficient of friction• Short strokes and high accelerations• Withstands shocks and vibrations• Dimensionally interchangeable• Corrosion-free
Benefits= Confidence in design and operation = Eliminate down time and messy lubricants= Save money= Ideal for harsh environments= Lower costs= Eliminate shaft damage= Cleaner, simpler design= Less transportation costs and fatigue= More options, including cost-effective shafts= Smooth movements over design lifetime= No scoring or replacement of shafting= Reduces stress on other components= No redesign/drop-in replacements available= Ideal for high moisture/wash down/chemicals
Works well with short strokes
Compared with recirculating ball bushings, DryLin® bearings’ oper-ating characteristics do not depend on the length of travel. Even applications with extremely short strokes are no problem for DryLin® linear bearings.
Lower surface pressure
DryLin® linear bearings work through the use of sliding ele ments, in contrast to the design of recirculating ball bear ing systems. Thisresults in a larger contact surface and to a much lower pressure. Theadvantages are:
• No scoring or galling of shaft• Compatible with non-hardened shafts
Dry running,withoutlubrication
DryLin® does not require costlymaintenance or additionalcomponents such as greaselines to function. Designed fordry running, DryLin® linearbearing systems run withoutgrease or oil; this permits operation even applications with dirt orwashdowns- the bearing liners are designed to act as wipers byremoving debris from the system.
Quiet operation
The smooth operation is also attributable to the difference betweenrolling and sliding (see graph at the left): No mechanical rolling againsthard surfaces, no collisions between balls resulting in loud running noises. Sliding motion is extremely quiet, only a low "swishing" noiseis heard. Many customers prefer the feel of DryLin® for manualoperations
Ball bearing system igus® DryLin® linear bearings
Resistant to dirt, dust and moisture
DryLin® T BearingBall Bearing
Ball bearing DryLin®
Speed Speed
dB dB
Comparative noise generation
http://www.igus.com/iglide-quickspecmailto:[email protected]://www.igus.com
Online
Lifetime
Calculation
www.igus.com
DryLin®: Materials
45.7
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DryLin
®Linea
rPlain Bea
rings
®
DryLin®
Suitable Materials for the DryLin® Series
DryLin® T DryLin® N DryLin® W DryLin® R
iglide® J
iglide® J200 1) – –
iglide® T500 2) – – –
1) Use only with hard anodized aluminum2) Use only with hardened shafts, preferablystainless steel or chromed shafts
The coefficient of friction - Not just simple plasticsAll DryLin® materials arecharacterized by excellentcoefficient of friction values in dryoperation. DryLin® linear guidesystems can reach coefficients offriction as low as 0.12 without anyadditional lubricants. Dependingon the load, the kind of applicationand the environmental conditions,this value might be 2 to 3 timeshigher.
The iglide® T500 materialiglide® T500 is defined by its combination of high temperatureresistance with compressive strength, along with high resistanceto chemicals. iglide® T500 achieves the best wear results with hard-ened stainless steel and case-hardened chrome plated steel shafts.Special characteristics:• Temperature resistant from -148°F to +482°F
in continuous operation• Universal resistance to chemicals• High compressive strength• Very low moisture absorption • Great wear resistance through the entire temperature range
The iglide® J materialComprehensive laboratory tests showed that iglide® J is by far the mostsuitable polymer material for most linear motion applications. Specialcharacteristics of iglide® J:• Lowest coefficient of friction on all materials overall• Very low abrasion values during dry operation• Excellent wear resistance• Maintenance free dry operation• Vibration dampening • Very low moisture absorption• Recommended for all shaft materials
iglide® J – various shaft materials
DryLin® – Coefficients of friction
Wear
iglide® T500 – various shaft materials
Wear
Coefficient of friction
suitable – not available
Dry Running v = .82 ft/s (0.25 m/s), p = 145 psi
DryLin® SAluminum
CaseHardened
Stainless440C Stainless
420C
HardChromePlated
Dry Running v = .82 ft/s (0.25 m/s), p = 145 psi
DryLin® S Case 440 HardAluminum Hardened Stainless ChromeShaft Plated
J200 J T500
DryLin® SAluminum
CaseHardened Stainless
440C
Stainless420C
HardChromePlated
J200 on DryLin® S hard-anodizedshafting
http://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTEhttp://www.igus.com/RoHShttp://www.igus.com/iglide-CADhttp://www.igus.com/iglide-pdfs
DryLin® Linear Plain Bearings:DryLin® N, DryLin® W, DryLin® T, DryLin® R, Slide Tables
®
DryLin®
45.8
DryLin
®Linea
rPlain Bea
rings
Internet: http://w
ww.ig
us.co
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ail: sa
les@
igus.co
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iglide® T500 material for heavy-duty operation at high temperaturesin foundries
Wear in (µm/km)
Wear Behavior
The wear behavior of DryLin® R linear plain bearings is a result of the shaft material. iglide® J works well on many different materials. Thesurface load, in addition to the shaft material and roughness, has an effect on the wear.With decreasing surface load, the wear also decreases.
Operating Temperatures
iglide® J Material
Sliding elements made of iglide® J can be used in the tem-perature range between -40°F and 194°F. Because of theexcellent heat conductivity of aluminum as a shaft and hous-ing material, a large increase in bearing temperature onlyoccurs in high-frequency short-stroke applications with a highload.
See our Online Expert System and ...
0
0.2
0.4
0.6
1.2
iglide®
JDryLin®
T
iglide®
JAluminum
Shaft
iglide®
JCold Rolled
Steel
iglide®
JStainless
Steel
iglide®
T500
Aluminum
Shaft
iglide®
T500
Cold Rolled
Steel
iglide®
T500
Stainless
Steel
0.8
1.0
Wear in µm/km for different sliding partners, p = 145 psi
Online LifetimeCalculationwww.igus.com
Temperature limits for iglide® J
iglide® J Application Temperature
Minimum -40 °F
Max., long-term +194 °F
Max,, short-term +248 °F
iglide® T500 Material
T500 liners were developed specifically for high temperature andchemical applications, and run particularly well on stainless-steelshafting.
iglide® T500 Application Temperature
Minimum - 148 °F
Max., long-term + 482 °F
Max., short-term + 599 °F
Temperature limits for iglide® T500
http://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTEhttp://www.igus.com/iglide-quickspecmailto:[email protected]://www.igus.com
DryLin® Linear Plain Bearings:
45.9
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us.co
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DryLin
®Linea
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®
DryLin®
Static Load CapacitySince there is no point-to-point contact with DryLin®, as there is withball bearing systems, the static load capabilities of DryLin are extreme-ly high. At the right find the maximum static load for the largest bear-ing in each series:
Series Max Static Load
DryLin R 20,000 lbs
DryLin T 3,140 lbs
DryLin W 719 lbs
DryLin N 220 lbs
Dynamic Load CapacityThe dynamic load capacity is related to the continuous applicationspeed as shown in the graph, this is due to the P•V value of the iglide®
J material. The lower the surface speed, the higher the permissibledynamic load. Our available Online Expert System quickly and easilychecks the functionality of a particular DryLin® system for your appli-cation, and is available at www.igus.com. It will give warning if the loadcapacity of a certain bearing is exceeded.
Loading Capacity
0.1 1 1010
100
1000
10000
Load
F (l
bs)
Speed v (m/s)DryLin® T 25DryLin® R 25
DryLin® N 27
F = total of loads per rail/shaft
L
DryLin® W
Permissible Speeds
With low loads DryLin® has been tested at speeds up to 49 fps (15 m/s). The maximum permissible speed is related to the bearingload - the lower the load the higher the permissible speed. Since DryLin® does not rely on complicated rolling elements, but insteadon specially engineered, low wear, low friction glide strips, extremely high speeds and accelerations are now possible. This meansthat DryLin® is ideal for applications where cycle and accelerations must be increased.More significant than the maximum speed is the average speed-per-cycle time. Therefore, in order to calculate the suitability of a par-ticular DryLin® system, the average surface speed should be determined. In applications with intermittent cycles, the highest aver-age surface speed is significant; this is an average taken over a 10-30 minute time periodThe use of DryLin® S hard anodized aluminum as a shaft material decreases the operating temperature in the bearing system due toits thermal conductivity and micro-finish. It is recommended for most applications with short-strokes or high cycles when using theiglide® J/J200 material liners. It is the material we have designed for use with all of our profile guides as well.
F x V values of comparable DryLin® systems
2000
200
20
3.5 330.3
Speed v (ft/s)
Eccentric Forces
2:1 Rule = permissible distances of the applied forces
Online LifetimeCalculationwww.igus.com
The 2 :1 RuleWhen using linear plain bearings it is important to ensure that the acting forcesfollow the 2:1 Rule (see drawing). If either the load or the drive force (F) isgreater than twice the bearing length (1X), then a binding or interrupted motionmay occur.If the location of the drive force or load cannot be changed, simply increasethe distance between the bearings, or create a counterbalance to move thecenter-of-gravity back within the 2 to 1 ratio.
http://www.igus.co.uk/main_fs.asp?KATALOG=XIGLIDUR&GO=DryLin_EXPERTEhttp://www.igus.com/RoHShttp://www.igus.com/iglide-CADhttp://www.igus.com/iglide-pdfs
DryLin® Linear Plain Bearings:DryLin® N, DryLin® W, DryLin® T, DryLin® R, Slide Tables
®
DryLin®
45.10
DryLin
®Linea
rPlain Bea
rings
Internet: http://w
ww.ig
us.co
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ail: sa
les@
igus.co
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Chemical Resistance
iglide® J is resistant to weak acids, diluted lyesand to fuels and all types of lubricants. Even thefrequent chemical washdowns of machines inthe food industry are not a problem for DryLin®
linear plain bearings.T500 liners were developed specifically for chem-ical resistance and high temperature applica-tions. T500 liners run particularly well when com-bined with stainless steel shafts, which are alsorecommended for chemical resistance.
Corrosion Behavior
The low moisture absorption of iglide® J and T500 allows designin underwater areas. With the use of stainless steel shafts oranodized aluminum, a corrosion resistant guide results. Anodizedaluminum is resistant to chemically neutral materials in the PHrange 5 to 8. For special applications it is recommended totest coated aluminum sample parts to examine results prior totheir use.
Clean Room Suitability andESD Compatibility
All DryLin® guide systems are qualified for cleanroom applications. The differentiation between thevarious cleanroom classes is only dependent on load and speed of the application. The combinationof iglide® J and hard anodized aluminum is classified as level 1 in the ESD compatibility according toSEMI E78-0998 (High est rank).The following DryLin® guide systems were examined: N40, W10, T25 and T30. See ➤ page 45.11 fordetailed results.
Chemical resistance of iglide® J and iglide® T500
iglide® J iglide® T500Medium ResistanceAlcohol Resistant Resistant
Chlorinated hydrocarbons Resistant Resistant
Ester Not Resistant Resistant
Greases, oils Resistant Resistant
Ketones Conditionally Resistant Resistant
Fuels Resistant Resistant
Weak acids Conditionally Resistant Resistant
Strong acids Not Resistant Conditionally Resistant
Weak lyes Resistant Resistant
Strong lyes Resistant Resistant
Sea water Resistant Resistant
Golden manus® winner for Inspection equipment for offshoredrilling riserplant with iglide® G300 and DryLin® N
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DryLin
®Linea
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rings
®
DryLin®
All DryLin®-Guides are clearly qualified for clean room applications.The differentiation between the various clean room classes is onlydependent on load and speed of the application. The combinationof iglide® J and hard anodized aluminum is classified as level 1 inthe ESD compatibility accord ing to SEMI E78-0998 (Highest rank).
The following DryLin®-Guides have been examined: N40, W10, T25 and T30. Detailed results can be found below:
Linear guide DryLin® TK01-30-01"For the linear guiding system DryLin® TK01-30-01 by igus®, it is possible, on the calculations of the likelihood of viola-tion of the threshold values of the detection sizes 0.2 µm, 0.3 µm, 0.5 µm and 5 µm with a motion speed of v = 0.1 m/s, toclearly derive a suitability for clean rooms classified as ISO-Class3 according to DIN EN ISO 14644-1".
Linear guide DryLin® NK02-40-02"For the linear guiding system DryLin® NK02-40-02 by igus®, it is possible, on the calculations of the likelihood of viola-tion of the threshold values of the detection sizes 0.2 µm, 0.3 µm,0.5 µm and 5 µm with a motion speed of v = 1 m/s, to clearlyderive a suitability for clean rooms classified as ISO-Class 6 accord-ing to DIN EN ISO 14644-1".
The measurement results of the ESD compatibility according to SEMI E78-0998 show that the linear guiding system DryLin® NK02-40-02 can be classified "level 1" (highest rank). See Fraunhofer IPA Report No.: IG 0308-295 73.
Linear guide DryLin® TK01-25-02"For the linear guiding system DryLin® TK01-25-02 by igus®, it is possible, on the calculations of the likelihood of viola-tion of the threshold values of the detection sizes 0.2 µm, 0.3 µm, 0.5 µm and 5 µm with a motion speed of v = 1 m/s, toclearly derive a suitability for clean rooms classified as ISO-Class5 according to DIN EN ISO 14644-1".
The measurement results of the ESD compatibility according to SEMI E78-0998 show that the linear guiding system DryLin® TK01-25-02 can be classified "level 1" (highest rank).
Linear guide DryLin® WK-10-40-15-01"For the linear guiding system DryLin® WK-10-40-15-01 by igus®,it is possible, on the calculations of the likelihood of violation ofthe threshold values of the detection sizes 0.2 µm, 0.3 µm, 0.5 µm and 5 µm with a motion speed of v = 1 m/s, toclearly derive a suitability for clean rooms classified as ISO-Class 6according to DIN EN ISO 14644-1".
The measurement results of the ESD compatibility according to SEMI E78-0998 show that the linear guiding system DryLin® WK-10-40-15-01 can be classified "level 1" (highest rank). See Fraunhofer IPA Report No.: IG 0308-295 74.
Photographs of the measuring points MP1 to MP4 of the linear bearingDryLin® NK02-40-02 used for the airborne particle emissionmeasurements
Photographs of the measuring points MP1 to MP4 of the linear bearingDryLin® TK01-25-02 used for the airborne particle emission measurements
Photographs of the measuring points MP1 to MP4 of the linear bearing DryLin® WK-10-40-15-01 used for the airborne particle emissionmeasurements
DryLin® –Cleanroom Suitability
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DryLin® Linear Plain Bearings:Floating Bearing/Self-Alignment
®
DryLin®
45.12
DryLin
®Linea
rPlain Bea
rings
Internet: http://w
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igus.co
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When using systems with 2 parallel rails, one side must bedesignated as the “fixed” rail, and the opposite side as the “floating”rail.
Why use floating bearings?• promotes smooth gliding performance andmaximizes bearing life
• prevents binding caused by parallelism and angleerrors
• decreases necessary drive force and wear byminimizing friction-forces
• Enhances the precision of the system over thebearings’ lifetime.
• Reduce assembly time and cost
Fixed BearingsThe “fixed” bearing rail should be positioned closest to the driveforce. This rail will determine the precision of the system; no systemshould contain more than two “fixed” bearings.
Floating/Self-Aligning BearingsThe “floating” rail should be the rail located furthest from the driveforce. It is to act only as a guide, and will compensate for anymisalignments or angle errors in the system ensuring properfunctionality.
Mounting SurfacesThe mounting surfaces for rails and bearings should have a veryflat surface (e.g milled surface) in order to enhance performance.Variations in these surfaces may be compensated for by usingfloating bearings.
Standard Version
Maximum float = .02” (.5 mm)
Maximum float = .04” (1 mm)
Horizontal Float “LLZ” Vertical Float “LLY”
Standard Version Horizontal Float “LLZ” Vertical Float “LLY”
Standard Version Horizontal Float “LLZ” DryLin® W can alsoalleviate edge pressureIdeal for non-flat, evensurfaces
Vertical Float “LLY”
DryLin® N - Floating Systems
DryLin® T - Floating Systems
DryLin® W - Floating Systems
Fixed and Floating Bearing Mounting Instructions
Online LifetimeCalculationwww.igus.com
Maximum float = .08” (2 mm)
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45.13
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®Linea
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®
DryLin®DryLin® Linear Plain Bearings:Floating Bearing/Self-Alignment - DryLin® T, DryLin® R
DryLin® R linear plain bearings in the 03 Design Series areself-aligning and offer great advantages in applications withparallel shafts. They are able to compensate for alignment andparallelism errors and should be used on the shaft locatedfurthest from the drive mechanism.
The design provides a raised spherical area on the outerdiameter of the aluminum adapter for self-alignment. Loadcapacity is the same as the fixed version.
Even in unfavorable edge-load conditions, the load issupported by the entire projected surface
In order to compensate for parallelism errors between twoshafts, the outer diameter is designed to be smaller than the
housing bore diameter by 0.2 - 0.3 mm (depending on the size).With the use of mounted O-rings, these bearings have an elasticbearing seat.
Compensation for angle errorsSeries RJUI/RJUM/OJUI/OJUM-03 ±0.5°Series RJUM-06-LL/OJUM-06-LL ±3.5°
Compensation of parallelism errorsSeries RJUI/RJUM/OJUI/OJUM-03 ±0.1 mm (.004”)Series RJUM-06-LL/OJUM-06-LL ±3 mm (.12”)
The spherical DryLin® adapters can com-pensate for alignment errors. A hard-anodization protects the aluminum adapterfrom wear.
With built in clearances and the use of O-rings, the self-aligning DryLin® R bearingsof the 03 Design Series can compensate forparallelism errors.
The self-aligning DryLin® R bearings of the06 LL design series can compensateparallelism errors up to ± .12” (3mm).
DryLin® R
DryLin® T Shown As Example Only
Installation variation horizontal withfloating bearing in the Z-direction
Fixedbearing
Floatingbearing VF-Y
Fixedbearing
Rail
Floatingbearing HF
Carriage
Fixed bearingFloating
bearing HF
Horizontal mounting version withfloating bearing in the Y-direction andlateral mounting carriage
Installation variation lateralwith floating bearing in the Z-direction
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DryLin® – Applications®
DryLin®
45.14
DryLin
®Linea
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Packaging machines
Testing and sorting machines
Feeding systems for a blister machine
Machining Center
Positioning of milling heads
Machining centers for the furniture industry
Storage solutions for a tape library
Flatbed ink-jet printers
Packaging technology
Height-adjustment for an encoding machine
DryLin® T
DryLin® N
DryLin® W
DryLin® R
DryLin® HTS
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