发明名称 |
ÖLIMPRÄGNIERTES GESINTERTES GLEITLAGER |
摘要 |
An oil-impregnated sintered sliding bearing formed of a porous iron-based sintered alloy with quenched structure and receiving a high surface pressure capable of reducing the number of finishing steps by cutting and grinding and providing a bearing performance equivalent to or higher than that of conventional bearings, wherein a plurality of ridge-and-groove lines having a height difference of 2 to 12.5 mu m and extending in circumferential direction are axially arranged in parallel with each other by boring the bearing surface thereof to form a wavy surface in axial direction, and the portion thereof deeper by 10 to 60 mu m from the outer layer of the bearing surface is formed dense to seal surface pores so as to reduce the pores opening to the outer surface to 1 to 10 percent by area, whereby the bearing can be used at a surface pressure of 6 kgf/mm<2> (58.5 MPa) or higher and a sliding speed of 2 to 5 cm/s. |
申请公布号 |
DE60307427(D1) |
申请公布日期 |
2006.09.21 |
申请号 |
DE2003607427 |
申请日期 |
2003.01.20 |
申请人 |
HITACHI POWDERED METALS CO. LTD.;HITACHI CONSTRUCTION MACHINERY CO. LTD. |
发明人 |
MIYASAKA, MOTOHIRO;MARUYAMA, KAZUO;MOGAMI, MICHIHARU;KOBAYASHI, JUNICHI;AKITA, HIDEKI;GOKITA, OSAMU |
分类号 |
F16C33/10;F16C33/12;F16C33/14 |
主分类号 |
F16C33/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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