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Economical bearing requiring less number of lubrication
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Material Index
| OILES 300 Bushing (thin-walled type) |
30B |
 |
| OILES 300 Bushing |
30B |
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| OILES 300 Flange Bushing |
30F |
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| OILES 300 Washer |
30W |
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| OILES 300 Bar Stock |
30M |
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| OILES 300 Tube Stock |
30S |
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|
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OILES 300 is a special type of oilless bearing in which the porous structure resulting from the cast iron growth phenomenon is effectively utilized to contain lubricant oil therein.
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| Features |
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The number of lubrication can be reduced drastically compared to a gun metal bearing |
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Lubricant oil being contained in porosities, an oil film can be stably maintained improving resistance to wear |
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No limitation for motion style and sliding surface |
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Capable to manufacture larger sized products compared with oil-impregnated sintered bearing |
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Available in standard products with various sizes and material for machining |
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| Service Range |
| Lub state |
Periodical lub
|
Oil-lub |
| Service temperature range ℃ |
-40~+100 |
-40~+150 |
P max.
N/mm2{ kgf/cm2} |
10{ 102}
|
V max.
m/s{ m/min} |
1.00{ 60}
|
3.35{ 201} |
PV max.
N/mm2·m/s{ kgf/cm2·m/min} |
1.25{ 765}
|
3.25{ 1990} |
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| Mechanical Property |
| Density |
----------
|
g/cm3
|
6.8
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| Tensile strength |
JIS Z 2241 |
N/mm2{ kgf/mm2} |
98{ 10} |
| Compressive strength |
---------- |
N/mm2{ kgf/mm2}
|
294{ 30}
|
| Impact strength |
JIS Z 2242 |
J/cm2{ kgfm/cm2} |
2{ 0.2} |
| Hardness |
JIS Z 2246 |
----------
|
HS20
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| Modulus of longitudinal elasticity |
JIS Z 2241 |
N/mm2{ kgf/mm2} |
58000{ 6000} |
| Coefficient of linear expa |
---------- |
×10-5 -1 |
1.1 |
| Thermal conductivity |
---------- |
W/m{ cal/seccm} |
50.2{ 0.12} |
* Values above are nominal values, not standard values. |
| Test Data |
| Thrust test (comparison with various copper alloy bearing materials) |
| <Test conditions> |
| Dimension of specimen: |
 25×48×t9 |
| Mating material: |
S55C(Surface roughness 1.5  mRy) |
| Load: |
Starting from 0.99 N/mm2 {10.1kgf/cm2}, load is increased with an increment of 0.87 N/mm2
{8.9 kgf/cm2} at 5 minutes intervals. |
| Velocity: |
0.162m/s {9.7m/min} |
| Lubrication: |
Oil-oil |
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| Product | Bearing Top |