| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the cost of an insulated rolling bearing for preventing electrolytic corrosion made of ceramics and having a first insulation layer 13a, and to prevent a second insulation layer 14a from being peeled off or levitated even when the first insulation layer 13a is covered with the second insulation layer 14a made of a synthetic resin. <P>SOLUTION: An outer peripheral surface 7 and both axial end faces 8, 8 of an outer ring 3b are covered with the first insulation layer 13a. Then, the first insulation layer 13a is covered with the second insulation layer 14a instead of applying a polishing treatment to the first insulation layer 13a. Projecting parts 18, 18 formed on the second insulation layer 14 are engaged with grooves 16, 16 formed on the outer ring 3b. Thereby, the above problem can be solved. <P>COPYRIGHT: (C)2009,JPO&INPIT |
