Bronze casting, joined the trace amounts of Ti, Zr, Fe or Al and other elements, make the grains will be refined, thus forming the porous castings, dipping lubricating oil as the oil-retaining bearing.
Made of copper alloy oil-retaining bearing features are:
1. The need for cutting processing.
2. Casting, the production, do not need to molding metal mould, reason for small batch in the manufacturing, large oil bearing.
3. And powder-metallurgy copper oil-retaining bearing comparison, made of copper alloy oil-retaining bearing high bearing capacity, low wear rate, resist agglutination sex is near.
4. Low porosity, oil content less, so often needs to have intermittent supply device.




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