To provide a sealed rolling bearing capable of achieving low torque, torque stability, high-temperature resistance and low-temperature resistance.SOLUTION: A hub bearing 1 comprises a seal member 13 that seals a bearing space 9, is fixed to a fixing side member 12, and is in sliding contact with a rotary side member 15. The seal member 13 has a seal lip that is in sliding contact with the rotary side member 15. Grease is applied to at least one of the sliding contact surface of the seal lip and the sliding contact surface of the rotary side member 15 with which the seal lip is in sliding contact. The grease contains a base oil, a thickener and an antioxidant, contains 0.1 mass% or more and less than 3 mass% of the antioxidant with respect to a total amount of the base oil and the thickener, and has a worked penetration of 240 to 300 measured in compliance with JIS K 2220.SELECTED DRAWING: Figure 1
【課題】低トルク性とトルク安定性、耐高温性・耐低温性を両立できる密封型転がり軸受を提供する。【解決手段】ハブベアリング1は、軸受空間9を密封し、固定側部材12に固定され、回転側部材15に摺接するシール部材13を備え、シール部材13は回転側部材15に摺接するシールリップを有し、シールリップの摺接面、および該シールリップが摺接する回転側部材15の摺接面の少なくとも一方の面にグリースが塗布されており、グリースは、基油と、増ちょう剤と、酸化防止剤とを含み、かつ、基油および増ちょう剤の合計量に対して酸化防止剤を0.1質量%以上3質量%未満含み、JIS K 2220に準拠して測定される混和ちょう度が240~300である。【選択図】図1
SEALED ROLLING BEARING
密封型転がり軸受
2022-10-13
Patent
Electronic Resource
Japanese
SEALING DEVICE OF ROLLING BEARING AND SEALED ROLLING BEARING
European Patent Office | 2022
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