Abstract
A shell type needle roller bearing for a universal joint is provided which can eliminate radial gaps. A plurality of needle rollers are mounted in an outer ring which has a cylindrical portion adapted to be fitted in a bearing ring formed in a bifurcated piece of a yoke and having a bottom at one end. The cylindrical portion is formed by three arcuate wall portions having equal circumferential lengths to each other. When a trunnion of a universal joint is inserted into the shell type needle roller bearing, the arcuate wall portions are resiliently deformed radially outwardly through the needle rollers, so that the needle rollers are pressed against the outer circumferential surface of the trunnion by the recovering resilience. This prevents formation of radial gaps.
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