Koyo Seiko Company, Ltd.

Nippondenso Co., Ltd.

Denso Corporation

Aichi Steel Works, Ltd.

Koyo Seiko K.k.

Teruo Hoshino

Masayuki Kitamura

Masao Goto

Kenzo Mitani

Yoshiki Fujita

Hiroyuki Miyazaki

Tutomu Siga

Sigenobu Nakamura

Akihiro Mizutani

Toshihiro Kawaguchi

Yasuo Asai

Yoshihiro Ono

Yasuharu Misada

Yoshitaka Natsume

Takao Ooki

Yatsuka Takata

Yoshihiro Wakikado

Jonathan Newall

Hazime Tazumi

Akira Muroga

Adrian P Lee

An antifriction bearing includes a fixed ring which comprises a steel containing up to about 10% of residual austenite. An alternator for vehicles includes a stator mounted on a frame, a rotor having its rotary shaft rotatably supported by a pair of bearings on the frame and a drive pulley mounted on one end of the shaft projecting outward from the frame. The outer ring of at least the bearing toward the pulley comprises a steel containing up to about 10% of residual austenite.

Antifriction bearing and alternator incorporating same for use in vehicles

For extension of service lives of rollers and discs of a toroidal continuously variable transmission, input discs, output discs and rollers are formed of a heat-resisting bearing steel. At least a roller has its peripheral surface subjected to a shot peening for achieving a compressive residual stress of 0.6 to 1.2 GPa and a hardness of HRC 63 to 66 at the outermost surface.

Toroidal continuously variable transmission

Antifriction bearing and alternator incorporating same for use in

A bearing steel having long rolling life comprising, by weight, 0.65 to 0.90% of C, 0.15 to 0.50% of Si, 0.15 to 1.0% of Mn and 2.0 to 5.0% of Cr, and the balance of Fe. Austenite grain size can be prevented from becoming coarser to make hardening in high temperature possible by further adding one or more of 0.0090 to 0.0200% of N, 0.010 to 0.050% of Al and 0.005 to 0.500% of Nb as optional elements to the steel. Further, rolling fatigue life can be improved by further adding one or more of 0.20 to 0.50% of Ni, 0.10 to 2.00% Of Mo and 0.05 to 1.00% of V as optional elements, and machinability can be improved by further adding one or more of 0.02 to 0.05% of S, 0.005 to 0.10% of rare earth elements, 0.02 to 0.30% of Pb, 0.0005 to 0.0100% of Ca, 0.001 to 0.200% of Bi, 0.005 to 0.20% of Se and 0.005 to 0.100% of Te in the steel as optional elements.

Bearing steel

Growing community of inventors

Yao, Japan

Teruo Hoshino