| 摘要 |
The retainer has retainer flanges with side surfaces (14`) and connected with transverse webs (8`, 9`) for forming of rolling unit jackets. A lubricating jacket (15`) is formed in the side surfaces, and a duct-shaped lubricating groove (16`) attached to the lubricating jacket is formed in boundary surfaces. The lubricating jacket and the lubricating groove are connected with each other for conveying lubricant. |
