| 摘要 |
PURPOSE: To obtain a bearing unit having a bearing holder including sufficient release strength of the bearing. CONSTITUTION: The bearing unit comprises a bearing 2 for rotatably supporting a shaft, and a bearing holder 3 for press-injecting the bearing 2 to the holder 3a to hold it. The holder 3 is molded by the material containing polyamide resin, the press-injecting margin of the holder 3, i.e., the outer diameter size of the holder 3 and the inner diameter size of the holder 3a becomes 50μm or more, and the strength of holding the bearing 2 by the holder 3a of the holder 3 is 20N or more. The holder 3 is molded by the material mixed with polyamide resin, carbon fiber and zinc oxide.
|
