| 摘要 |
A rolling bearing is proposed in which even though a sealed type, no lowering of strength of the bearing rings or lowering of the front width will not occur for the convenience of mounting of a seal, and design of dimensions equivalent to a non-sealed type bearing and practicability can be achieved, and has fretting resistance. Rolling elements 3 are disposed between an inner ring 1 and an outer ring 2 with seals 9 and 10 provided. The seal 9 arranged on a counterbore 8 of the outer ring 2 is fitted in a pressed state on a peripheral surface portion of a cylindrical surface 11 forming the counterbore 8. By pressing, the seal 9 is mounted without forming a slot. The other seal 10 is fitted in a slot 12. The inner ring and the outer ring, or rolling elements of a bearing comprising the outer ring, inner ring, rolling elements and a retainer are subjected to carbonitriding and a grease using a urea compound as a thickening agent is sealed in the bearing. |
