Jtekt Corporation

Tomoyuki Aida

Hajime Watanabe

Hiroshi Yano

Yuzuru Takahashi

Kanichi Koda

Yuka Sato

Mikio Kuromatsu

Ichiro Kojima

Takeshi Iwawaki

Katsunori Tsumura

Atsushi Naitou

A tapered roller bearing includes an inner ring, an outer ring, a plurality of tapered rollers, and an annular cage having a plurality of cage pockets. Each of the cage pockets has a retainer configured to permit displacement of the tapered roller in a direction with a component in a radial direction, and restrict detachment of the tapered roller to an outer side in the radial direction by bringing the retainer into contact with a part of an outer peripheral surface of the tapered roller. The cage pockets include a first cage pocket having a first retainer with which a permissible amount of the displacement is a first displacement amount, and a second cage pocket having a second retainer with which the permissible amount of the displacement is a second displacement amount smaller than the first displacement amount.

Tapered roller bearing and cage

A rolling bearing includes an outer ring, an inner ring, balls and a cage. The cage includes an annular portion which is disposed at the end portion in the axial direction thereof, and a plurality of pillar portions which protrude to the coaxial direction from the side surface on the one side in the axial direction of the annular portion and are arranged in the circumferential direction thereof so as to form therebetween pockets each for housing a rolling element, wherein a seal gap for restricting the flowing of lubricant is formed between the first annular portion and one of or both the outer ring and the inner ring not guiding the cage.

Rolling bearing

First shoulder portions are formed on the outer periphery of the shaft such that the first spline grooves are interposed between the first shoulder portions adjacent to each other in a circumferential direction of the shaft. Second shoulder portions are formed on the inner periphery of the outer tube such that the second spline grooves are interposed between the second shoulder portions adjacent to each other in a circumferential direction of the outer tube. Main passages of spline-purpose ball circulation passages are formed with the first and second shoulder portions. Clearance are formed respectively between the first and second shoulder portions and the spline-purpose balls in a rotational direction of the screw shaft and the spline-purpose outer tube. The spline-purpose balls disposed in the main passages bear a clockwise torque and a counterclockwise torque transmitted between the screw shaft and the spline-purpose outer tube.

Ball spline

[Problems] A bearing assembly is provided which is designed to prevent a core (metal annular member), used in a synthetic-resin cover, from disengaging from the cover. [Means for Solving Problems] A bearing assembly H includes: a synthetic-resin coverfitted in an inside surface of a vehicular-inner-side end of an outer ring member, and a metal annular memberdisposed on an inside surface of a fitting engagement portionof the cover, the fitting engagement portion being fitted in the inside surface of the outer ring member. The annular memberincludes an engaging portionin engagement with the cover

Bearing assembly

Growing community of inventors

Kashihara, Japan

Tomoyuki Aida