Taiho Kogyo Co., Ltd.

Yasuaki Goto

Yoshio Fuwa

Kimio Kawagoe

Toru Desaki

Kenji Touse

Motohiro Ohta

Hiroshi Ito

Hiroshi Kanayama

Masao Takahashi

Masaru Kondo

Hirofumi Michioka

Shoichi Seko

Yukitaka Muramoto

Kenyuu Akiyama

A sliding bearing that is disposed in a cylinder block and supports a journal portion of a crankshaft, including: a semi-annular first split bearing having a first circumferential end surface; and a semi-annular second split bearing having a second circumferential end surface. The first and second circumferential end surfaces contact each other, the first split bearing has a same outer diameter as an outer diameter of the second split bearing, the second split bearing has a thickness at a second circumferentially central position that is greater than a thickness of the first split bearing at a first circumferentially central position, the thickness of the first split bearing is decreased from the first circumferentially central position toward the first circumferential end surface, the thickness of the second split bearing is decreased from the second circumferentially central position toward the second circumferential end surface.

Sliding bearing and crankshaft support structure

This sliding bearing comprises a pair of semicircular half bearings formed into a cylindrical shape by bringing both circumferential ends thereof into contact with each other. The axial width of the half bearings is narrower in both circumferential ends and the circumferential center, and wider in the quarter parts located therebetween. During manufacturing of the half bearings, finishing by cutting processing is first performed on the parts of a flat-plate material which after formation are to become the two axial-direction end faces and the two circumferential-direction end faces of the half bearings, and thereafter, the flat-plate material is deformed into a semicircle.

Method of manufacturing a sliding bearing

Sliding bearing

In a bearing device, annular recessesandthat house a thrust bearingare formed in side surfaces of a housingand a cap, a rotation preventing protrusionis provided in an outer periphery of a lower side half-split thrust bearingin the thrust bearing, and a rotation preventing grooveinto which the rotation preventing protrusionfits is formed in the annular recessformed in the cap

Bearing device

In sliding bearing, wherein an overlay, which consists of at least one solid lubricant and a binder resin, covers an aluminum-alloy bearing layer bonded on backing metal, the overlay consists of an upper layer, which contains the solid lubricant essentially consisting of MoS , and a lower layer, which contains one or both of solid lubricant and hard additive. The solid lubricant of the lower layer is MoS and its content is relatively lower than in the upper layer.

Plain bearing

Growing community of inventors

Toyota, Japan

Yasuaki Goto