Drystar Outline

SO#936FR
Lead FreeRoHS██Precautions for use• Do not grind the bushing inner surface or the outer
diameter to change the size.

██Features
It is the bearing which has sintered porosity of bronze powder
on the steel back plate, with improved self-lubrication andwear resistance by adding polytetrafluoro-ethylene (PTFE),
which has small friction coefficient, and special filler throughimpregnation.

• Polish the surface of the mating surface to the value better
than 3 μ mRmax.
• Offset the joint of the bushing as far as possible from themaximum load point.

• Lead-free bearing which can be used without lubrication.

• To press fit the bushing, press fit it vertically into thehousing.

• Excellent sliding performance under high load and impactload.

• Special lock is not required for Drystar.

• Excellent in wear resistance and long life.

• Initial lubrication can make the product life longer.

• Suitable for sliding motion and continued motion Stick-slip
hardly occurs. Silent operation can be achieved.

██Operation Range
Max. Allowable Load P
Lubricating Condition

Rotation, Oscillation
Very Slow Movementor Sliding

No lubrication

147

N/mm2

Change of Load
100,000 Times orLess

Change of Load 10
million Times or More

Operation Range
Temperature℃

2915−200 〜 +280

59██Physical Properties
Compression
Strength
Mpa

Linear Expansion Coefficient
×10−6/℃

Thermal Conductivity
W/（m・K）

Parallel to Bearing Surface Vertical to Bearing Surface

304

113042██ Dimensions and tolerance for press-fit of bushing and how to obtain maximum press-fit force F (general formula)F ≒ 0.8tL δ maxt : Bush thickness(mm)even
L : Bush length(mm)δ max : Circumferential maximum stress (N)Max. Bush Dia − Housing Dia
Max. Bush Dia＝ 18.6×104×For max bush dia., use the value measured with "GO ring gauge''
BushHousing20˚～25˚φAArbor

Press - in force

Pilot diameter φB

C Chamfered• Arbor dia =Housing I.D.–(0.2～ 0.4 mm)• Pilot dia = Bush I.D.–(0.2～ 0.3 mm)• Housing chamfering procedures (C value)
Housing dia
C value
0.8mm
φ30 or less
1.2mm
φ30≦φ50
1.6mm≦φ50129SLIDING MATERIAL CATALOG

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Washer TypeSO#936FR

DrystarLead Free

LWMP

φd1 00φd(I.D.)(Bush)＋0.25

φD – 0.25(φe)
oleShaft Diameterelw
DoH
inRoHS– 0.03

φd2 ±0.12

T – 0.08

Material SO#936 FR

d1D

688

T
Thickness

d2e

16

12

10

18

14

1.300
〜1.10010122418

1.875〜1.625

12142620

Housing
Depth

Catalog No.

d0608
10
12

2.375
〜2.125141416302316183225

18203620

2238

22244233

2426

4435242528

48

3825303254433035386250

40

4266

5445

4874

6150

5278

Order

1.52.0Catalog No.

dLWM

3028303.375〜3.125

16
1.20〜0.95

18
LWM

2235

4.375
〜4.125

65

2040
45

1.70
〜1.45

50

██For Operation• When a dowel pin is used for retention.

Thrust Washer
BushO.D.

Adhesives can be used for thrust washer retention but inthis case take the max.usable temperature and running
condition into consideration for adhesive selection.

Bush I.D.
(Shaft Diameter)

Provide a step down on housing. Make step down dialarger by 0.05 to 0.15 mm. than thrust washer O.D. Make
dowel pin top lower by 0.3 to 0.5 mm than washer face.
• When adhesive is used for retention.

Resin Sliding Materials

Bush I.D.
φdI.D.

Step down

SLIDING MATERIAL CATALOG140

Copyright © Sankyo Oilless Industry, Inc. All Rights Reserved.

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2018/05/02 13:42