Invention Grant
US07798248B2 Roller bearing seal companion ring having textured surface for holding lubricant and small particles 失效
滚子轴承密封配件环具有用于保持润滑剂和小颗粒的纹理表面

Roller bearing seal companion ring having textured surface for holding lubricant and small particles
Abstract:
A roller cone bit is provided that includes a companion ring positioned exterior to a seal, wherein the companion ring includes a textured surface where the inner diameter of the companion ring contacts the bearing pin.
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