| 摘要 |
A tapered roller bearing (1) used in a transmission and a differential of an automobile has an inner ring (2), an outer ring (3), tapered rollers (4) rollably arranged between the inner ring (2) and the outer ring (3), and a retainer (5) for retaining the tapered rollers (4) at circumferentially equal intervals. A roller factor gamma is set greater than 0.94, where gamma is expressed as (the number of rollers x the average diameter of the rollers)/(pi x PCD). |
