ZHEJIANG TOP BEARINGS CO., LTD.
YOUR TOP PARTERNER FOR PLAIN BEARINGS and ROLLING BEARINGS.
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It is made of Iron powder, which can be impregnated with a liquid or solid lubricant. With an appropriate design, this lubricant lasts longer than the assembly where it is assembled; thus, maintenance operations or assembly lubrication are not necessary.
With the obviously advantages, It is widely used in domestic electric appliance, electric tools, textiles machinery, chemical machinery and automobile industry, etc.
Sintered porous metal bearings are powder metallurgical parts, the starting materials are obviously metal powder. The metal powder used are specifically produced to give flow and compacting characteristic and at the same time ensure best mechanical strength, grade or porosity for oil retention and self-lubrication in its finished form.
Sequence of Production:
• Forming (or compacting)
• Sintering
• Sizing
• Oil Impregnation
Range:
• Plain & flanged bushes, self-aligned bushes, solid rod, plate, sintered bushes, oilite bushes, self-lubricated bushes, sintered bearings and different profile components as per drawings / samples.
Applications:
• Iron Sintered bushes are used for speed (up to 3000 rpm)
Grade II, Iron Base
Self-lubricating Iron Sintered Parts is a more modified variety offered by us. It does not require external source of lubrication and is preferred over the other varieties, due to the convenience that it offers.
| Elements | Class A% | B3% | B2% | B1% |
| Copper (Cu) | 1.00 Max | 9-11 | 4-6 | 1.5-3.5 |
| Carbon (C) | 0.25 Max. | 0.25 | 0.25 | 0.25 |
| Impurities | 2.0 | 2.0 | 2.0 | 2.0 |
| Copper (Cu) | BAL. | BAL. | BAL. | BAL. |