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US 2004/0001656 A1Published application
Sintered bearing and production method therefor
AssigneesMinebea Co., Ltd., Hitachi Powdered Metals Co., Ltd.
InventorsNoriyuki Yoshimura, Katsutoshi Nii
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Abstract
A sintered bearing is produced by a production method comprising: compacting a metallic raw material powder into a bearing green compact; sintering the green compact into a sintered compact; forming a resin coating 20 over the entire surface of the sintered compact; removing the resin coating 20 on a bearing surface 14a of the sintered compact; and impregnating a lubricating fluid L through the bearing surface 14a from which the resin coating 20 is removed.
Claims8
A sintered bearing comprising:
- a bearing body having a bearing surface;
- a resin coating provided over the surface of the bearing body except for the bearing surface;
- and
- a lubricating fluid impregnated in pores in the bearing body.
1 more element
A production method for a sintered bearing, the method comprising:
- compacting a metallic raw material powder into a bearing green compact;
- sintering the green compact into a sintered compact;
- forming a resin coating over the entire surface of the sintered compact;
- removing the resin coating on a bearing surface of the sintered compact;
- and
- impregnating a lubricating fluid through the bearing surface from which the resin coating is removed.
3 more elements
Dependencies are inferred from the claim text.