Koyo Seiko Company, Ltd.

Shiro Sawa

Keiichi Furukawa

Yoshihide Toda

Kenichi Horii

Teruo Ojima

Michitoshi Mitsumaru

Katsuhiko Ikeda

A water pump comprising a pump shaft having an impeller and mounted on one end of a pump housing with a seal provided therebetween, a stationary shaft in alignment with the pump shaft and supported at its one end by the other end of the pump housing, a pulley for reeving a belt therearound provided around the outer ring of an antifriction bearing mounted around the stationary shaft within the housing, and a water-tight flange positioned between the seal and the bearing and fixedly provided between the end portion of the pump shaft and the end portion of the pulley.

Water pump

A bearing device for an axle comprises a housing arranged about a portion of the axle, a pair of bearings each having a predetermined clearance mounted between the housing and the axle for rotation of the axle with respect to the housing; two opposed offset pairs of corresponding steps, including a first step of each pair on the outer periphery of the axle, and a second step of each pair on the inner periphery of the housing for positioning the bearings on the axle in the axial direction; and a clamping device for securing the bearings against axial movement on the axle beyond the predetermined clearance.

Bearing device

Growing community of inventors

Osaka, Japan

Shiro Sawa