| 摘要 |
PURPOSE: A retainer of a bearing is provided to reduce an area that first and second supporting arms and balls are closely adhered and to reduce a loss of the retainer caused by rubbing and the weight thereof. CONSTITUTION: A retainer(100) of a bearing comprises a body(101), a first arm unit(103), and a second arm(150). A plurality of pockets, where balls are inserted slidingly into an opened side of the body, is successively formed at a preset interval. The first arm unit formed in between a first pocket(131) and a second pocket(132) adjacent to each other supports the balls. The second arm unit formed in between the second pocket and a third pocket(133) adjacent to each other supports the balls. The first height of the first arm unit, which is formed inside the pocket, from the bottom surface of the pocket is higher than the height of the second arm unit. |
