| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide double row tapered rollers for preventing the occurrence of flaws in a shaft fitted to inner rings. <P>SOLUTION: This double row bearing comprises the inner rings 2a, 2b fitted to the outer periphery side of the shaft 1, an outer ring 3 arranged on the outer periphery side of the inner rings 2a, 2b, and rolling elements 4a, 4b arranged between each of the inner rings 2a, 2b and the outer ring 3. Chamfers 13a, 13b are formed on the one-end sides of the inner diameter faces of the inner rings 2a, 2b, and fitting portions 12a, 12b to which the shaft 1 is fitted are formed on the inner diameter faces of the inner rings 2a, 2b adjacent to the chamfers 13a, 13b. Lubricant reservoirs 18a, 18b are provided between each of the chamfers 13a, 13b and each of the fitting portions 12a, 12b on the inner diameter faces of the inner rings 2a, 2b to form a flaw preventing means. <P>COPYRIGHT: (C)2009,JPO&INPIT |
