Jtekt Corporation

Junichi Kubo

Takeshi Miyachi

Masahide Sunagawa

Takashi Masui

Nobuya Suzuki

An outer tapered member () having a conical inner circumferential surface is placed and an inner tapered member () having a conical outer circumferential surface in contact with the conical inner circumferential surface is placed in a through hole () of a first ring (). A screw member () is screwed a predetermined quantity into the through hole () to axially press an axial end face of the inner tapered member () toward a second ring () with a predetermined force and to press the outer surface of the outer tapered member () against the through hole () of the first ring () with a predetermined force. A weld part () in contact with a first ring () side end portion of a pin () and the first ring () is formed to prevent the pin () from coming out of the first ring () by the weld part ().

Pin type cage and method of assembling pin type cage

A rolling bearing has a metallic member sealing member at one axial end thereof. The sealing member has a first cylinder section including a first cylinder section facing surface which is in contact with an outer peripheral surface of an inner ring, a second cylinder section connected to the first cylinder section and including a second cylinder section facing surface which faces the outer peripheral surface of the inner ring, and a flange section connected to the second cylinder section via a bend section. In a state before the sealing member is press fitted in the bearing, a radial position of the second cylinder section facing surface is closer to the flange section than a radial position of the first cylinder section facing surface. The rolling bearing has another metallic member sealing member at another axial end thereof.

Rolling bearing

A supporting bearing is replaced with a new supporting bearing by conducting a first step and a second step. In the first step, an old inner ring before replacement is replaced with a new inner ring having an inner ring raceway diameter same as the old inner ring, and an axial length of an inner ring raceway face longer than the old inner ring so that a rolling roll is supported by this new inner ring in combination with an old outer ring and old cylindrical rollers. Thereafter, in the second step, the old cylindrical rollers are replaced with new cylindrical rollers having an axial length longer than the old cylindrical rollers, and simultaneously, the old outer ring is replaced with a new outer ring having an axial length of an outer ring raceway face longer than the old outer ring.

Growing community of inventors

Kashiwara, Japan

Junichi Kubo