Method for producing e.g. radial universal joint bearing, involves performing martensitic curing for inner ring and bainitic curing for outer ring during heat treatment, by introducing initial movement in intermediate region

摘要

The method involves performing heat treatment on a blank portion which is provided from starting material for inner ring (130) and outer ring (140). The inlet portions of inner and outer rings are treated with an oil to form a composite sliding bearing (100,110,120). A seal portion is attached to a space between sliding surfaces to seal an end face of the slide bearing. The martensitic curing is performed for inner ring and bainitic curing is performed for outer ring during heat treatment, by introducing an initial movement in intermediate region of sliding bearing. An independent claim is included for sliding bearing.