Ntn Toyo Bearing Co., Ltd.

Yoshio Kashio

Masahiro Kurita

Yuji Okamoto

Masahiko Kataoka

Mitsukazu Itayama

A rotary member as a one way clutch including an outer ring formed in its inner periphery with axial grooves each formed on its bottom with a cam surface tapered in one of the opposite directions of rotation, an outer member fixedly mounted on the outer ring and having an end wall for closing one end of the grooves, rolling elements received in the grooves and a closure member adapted to close the other end of the grooves and integrally provided on its inner surface with positioning members and biasing members adapted to be received in the grooves. The positioning members serve to hold the closure member in a fixed position relative to the outer ring. The biasing members serve to bias the rolling elements into narrower side of the cam surfaces. The grooves may have their bottom recessed to receive the positioning members therein. The closure member will thus be positively prevented from turning relative to the outer ring.

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Kuwana, Japan

Yoshio Kashio