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Polyacetal bearing maintains high performance under abrasive circumstance
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Material INDEX
| OILES 480 Bar stock |
48M |
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OILES 480 is an oilless bearing with polyacetal resin in which various lubricants and inorganic fiber are added.
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| Features |
 Applicable in self-lub state
Improved strength and wear resistance because of inorganic filler
Excellent wear resistance under abrasive circumstance
Usable under water
Outstanding velocity characteristic and electric conductivity
Injection molding enables complex shape and mass producing
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| Service Range |
| Lub state |
Self-lub
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| Service temperature range |
-40~+120
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P max.
N/mm2{ kgf/cm2} |
19.5
{ 199}
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V max.
m/s{ m/min} |
0.65
{ 39}
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PV max.
N/mm2·m/s{ kgf/cm2·m/min} |
3.25
{ 1990}
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* The value is the representative grade
of OILES 480. |
| Mechanical Property |
#480-01 |
#480-02 |
| Specific gravity |
ASTM D 792
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1.45 |
1.44
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| Tensile stren |
ASTM D 638
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N/mm2
{ kgf/cm2}
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41.5{ 423} |
101.8{ 1038}
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| Tensile break elongation |
ASTM D 638
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%
|
2.3 |
2.1
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| Bending strength |
ASTM D 790
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N/mm2
{ kgf/cm2}
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67.6{ 689} |
143.0{ 1458}
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| Bending elastic modulus |
ASTM D 790
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N/mm2
{ kgf/cm2}
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3730{ 38000} |
7130{ 72700}
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| Hardness |
ASTM D 785
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HRM69 |
HRM74
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Izod impact strength
(with-notch) |
ASTM D 256
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J/m
{ kgfcm/cm}
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39.2{ 9} |
45.8{ 4.67}
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| Coefficient of linear expansion |
ASTM D 696
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×10-5 -1
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2~10 |
3~10
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| Melting point |
DSC
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|
165 |
165
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| UL flame resistance |
UL94 |
File No. E78113 |
HB |
HB |
* Values above are nominal values, not standard values.
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|
| Test data |
| Thrust test |
| <Test conditions> |
| Mating material: |
S45C (Surface roughness 3 mRy) |
| Load: |
2.45~24.5N/mm2 {25~250kgf/cm2}
(1.23N/mm2 {12.5kgf/cm2}, load increased at 5 minutes intervals) |
| Velocity: |
0.208m/s {12.5m/min} |
| Atmosphere: |
in the air, underwater (20~47) |
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| Products | Bearing Top |