| 摘要 |
A bushing device includes a spindle, a sleeve slidably engaged on the spindle, and a lubricating collar disposed on the inner peripheral portion of the sleeve for slidably engaging onto the spindle and for lubricating the sliding movement between the sleeve and the spindle. The lubricating collar may be made of nylon powder, sulfurous tungsten, and calcium fluoride, and may be directly secured onto the inner peripheral portion of the sleeve with such as a molding or heating process, without additional adhering process or without additional adhesive materials.
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