Rolling device

Details Rolling device Rolling device

2005-10-05

2010-10-12

Charles, Marcus (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C384S492000, C384S625000, C384S907000

Reexamination Certificate

active

07811002

ABSTRACT:
A rolling device in which damage such as seizure or wear is less liable to occur and which has a long life, even when used under severe conditions such as high speed, heavy load, high temperature and insufficient lubrication. A thrust needle roller bearing includes an inner ring1, outer ring2, and a plurality of rolling elements3rollably arranged between a raceway surface1aof inner ring1and a raceway surface2aof outer ring2. A lubricant film consisting of a solid lubricant is coated over an area equivalent to an area ratio of 75% or more of at least one member of the group consisting of raceway surface1aof inner ring1, raceway surface2aof outer ring2, and a rolling contact surface3aof rolling element3. The thickness of the lubricant film is preferably 0.05 μm or more and 8 μm or less.

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