Oiless Industry Co., Ltd.

Mararu Iwakura

Masamitsu Kojima

Hiroto Kamimura

Eiji Satoh

Yasunori Nishi

A thrust ball bearing unit has a pair of ringed cylindrical upper and lower casings, each casing being made of synthetic resin, a pair of upper and lower races, and a buffer interposed between the upper casing and the upper race or between the lower race and the lower casing. Alternatively, two buffers are interposed between the upper casing and the upper race and between the lower race and the lower casing respectively. The upper and lower casings have peripheral sealing portions which are in a labyrinth or contact seal relationship with each other.

Growing community of inventors

Ayase, Japan

Mararu Iwakura