Tapered roller bearing

Abstract

The utility model discloses a tapered roller bearing, including bearing inner race, bearing outer ring, roller and be used for containing the retainer of roller, bearing outer ring is made of carburizing steel or high carbon chromium bearing steel material quality, bearing inner race is made of carburizing steel material quality, and the outer peripheral wall of bearing inner race and the inner peripheral wall of bearing outer ring all are provided with the raceway for the roller rolling, and bearing inner race and bearing outer ring all are processed through heat treatment process to make raceway surface form carbon potential layer, and the depth range of carbon potential layer is 0.35 2.6mm, and the heat treatment process of bearing outer ring is integral martensite quenching or carbonitriding heat treatment or induction quenching, and the heat treatment process of bearing inner race is carburizing heat treatment process, and the bearing inner race after heat treatment is processed through cold treatment process again. The utility model solves the problem of poor material quality adaptability of traditional tapered roller bearing inner and outer rings, poor heat treatment mode adaptability, leading to uneven bearing overall hardness, wear resistance and fatigue resistance.

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