| 摘要 |
PROBLEM TO BE SOLVED: To prevent conductivity of a rolling bearing from lowering in lapse of time during use. SOLUTION: In a rolling bearing in which a pair of claw parts 4 are provided extending along the surface of a rolling body 1 at an opposite position of an opening edge of a pocket part 2 of a holder 3 having the pocket part 2 rotatably holding the rolling body 1, a lubrication groove 5 for lubrication grease has one side edge of the claw part 4 to the other side edge of the claw part 4 via the inside of the claw part 4, and the conductive rolling bearing is provided with conductive lubrication grease of volume resistivity of 5×10<5> Ω.cm or less filled in a space in the rolling bearing including the inside of the lubrication groove 5. The conductive lubrication grease is desirably conductive lubrication grease with mixing consistency (JIS K220) of 250 to 350 to fully raise liquidity of the grease in the rolling bearing, and the base oil of the conductive lubrication grease is desirably base oil of one type or more chosen from mineral oil, synthetic hydrocarbon oil and polyalkylene glycol oil so as not to attack plastic. |
