Patent ID: 9631670
Date: 2017-04-25
CPC Classifications: F16C

Claim:
1. A rolling bearing apparatus comprising: a bearing portion having an inner ring with a raceway surface on an outer periphery thereof, an outer ring with a raceway surface on an inner periphery thereof, a plurality of rolling elements interposed between the inner ring and the outer ring and rolling on the raceway surfaces, and a cage that holds the rolling elements such that the rolling elements are arranged in a circumferential direction; and a lubrication unit having a pump that supplies a lubricant to an annular space formed between the inner ring and the outer ring, the lubrication unit being provided adjacently to the annular space, wherein the pump includes a needle-like nozzle having, at a tip thereof, a discharge port through which the lubricant is discharged toward the raceway surface of a non-rotating fixed bearing ring of the inner ring and the outer ring, and a tip of the nozzle is in contact with a peripheral surface adjacent to the raceway surface.