Oiles 88
Oil-impregnated polyester bearings
Feature
Serviceable without the need for lubrication.
Features low coecient of friction and superior impact resistance.
Features superior vibration-proof and soundproof characteristics.
Injection-molded and can be made in complicated shapes. Has good mass
productivity.
※
The values shown above are typical values, not the standard values.
Service range
Lubrication condition
Service temperature range
℃
Allowable max. pressure
P
N/mm
2
｛
kgf/cm
2
｝
Allowable max. velocity
V
m/s
｛
m/min
｝
Allowable max.
PV
value
N/mm
2
・
m/s
｛
kgf/cm
2
・
m/min
｝
−40∼＋140
14.5｛148｝
0.85｛51｝
2.45｛1,500｝
−40∼＋140
17.5｛179｝
0.85｛51｝
2.45｛1,500｝
Dry
88-02 88-71
Specific gravity
Tensile strength
Tensile elongation at break
Flexural property
Flexural modulus
Hardness
Izod impact strength (with notch)
Co-efficient of linear expansion
Deflection temperature under load 1.82 MPa
Melting point
UL incombustibility
ASTM D 792
ASTM D 638
ASTM D 638
ASTM D 790
ASTM D 790
ASTM D 785
ASTM D 256
ASTM D 696
ASTM D 648
DSC
UL94
Mechanical properties 88-02 88-71
Compressive stress
1% deformation
10% deformation
ASTM D 695
̶
N/mm
2
｛kgf/cm
2
｝
％
N/mm
2
｛kgf/cm
2
｝
N/mm
2
｛kgf/cm
2
｝
N/mm
2
｛kgf/cm
2
｝
HRM
J/m｛kgfcm/cm｝
×10
−5
℃
−1
℃
℃
File No.E78113
1.35
37.3｛380｝
30
57.8｛590｝
1,760｛18,000｝
52
49.0｛5.0｝
6∼12
56
224
HB
13.7｛140｝
49.0｛500｝
1.20
55.4｛565｝
30
79.9｛815｝
2,160｛22,000｝
80
118｛12.0｝
6
̶
220
̶
22.1｛225｝
86.8｛885｝
97
Selection Guide
Product
Information
Plastic Bearing
Multi-layer Bearing
Metallic Bearing
Air Bearings
Technical
Information
Slide Shifter
Corporate Pro le
066-139_樹脂系ベアリング.indd 97 19/11/13 11:08
Oiles 88 Elastomer
Polyester elastomer
88-02 Test data
Feature
Among thermo-plastic elastomer, the Oiles 88 elastomer features superior high temperature characteristics and
is applicable to wide temperature range from low to high temperatures.
Has superior wear resistance. Demonstrates outstanding resistance against abrasive wear caused by dust and
coarse mating surface, in particular.
Has rubber elasticity and exibility, superior impact resistance, and large noise suppressing and vibration-proof
eects.
Features superior oil resistance, chemical resistance and aging resistance among elastomer type exible plastic.
Specific gravity
Tensile strength
Tensile elongation at break
Tear strength
Hardness
VICAT softeninig point
Melting point
ASTM D 792
ASTM D 638
ASTM D 638
ASTM D 6301
ASTM D 2240
ASTM D 1525
DSC
Mechanical properties 88-91
̶
N/mm
2
｛kgf/cm
2
｝
％
N/mm
2
｛kgf/cm
2
｝
Shore D
℃
℃
1.22
33.3｛340｝
400
15.7｛160｝
57
190
212
W
W
Thrust test
＜Testing conditions＞
Mating material ： S45C（surface roughness Rz3μm）
Pressure ： 5.88N/mm
2
｛60.0kgf/cm
2
｝
Velocity ： 0.083m/s｛5.0m/min｝
Test time ： 50hrs.
Lubrication ： dry
Journal oscillation test
＜Testing conditions＞
Mating material ： FCD500（surface roughness Rz1.5μm）
Pressure ： 14.7N/mm
2
｛150.0kgf/cm
2
｝
Velocity ： 0.028m/s｛1.67m/min｝
Oscillating cycle ： 60cpm
Oscillting angle ： ±20°
Test time ： 100hrs.
Lubrication ： grease is applied at assembly
0.25
0.20
0.15
0.10
0.05
0
10020304050
Coefficient of friction〔μ〕
Test time〔hrs.〕
Wear amount
0.018mm
0.30
0.20
0.10
0
200 40 60 80 100
Coefficient of friction〔μ〕
Test time〔hrs.〕
98
Selection Guide
Product
Information
Plastic Bearing
Multi-layer Bearing
Metallic Bearing
Air Bearings
Technical
Information
Slide Shifter
Corporate Pro le
066-139_樹脂系ベアリング.indd 98 19/11/13 11:08