Nippon Seiko Kabushiki Kaisha

Kenji Takei

Yukihiro Akabane

Yasuo Murakami

Kyozaburo Furumura

Youichi Matsumoto

Takaaki Shiratani

Soji Nishida

Toru Takai

Youichi Nagano

A rolling bearing, comprising an inner race, an outer race and rolling members which roll therebetween, at least one of the inner and outer races being subjected to carburizing and heating treatment, is characterized in that:

Ball-and-roller bearing system

A seal for a rolling bearing 30 applicable to a strut-type suspension has a sealing member 40 of the bearing provided with two lips 43 and 47. The lip 43 is at the radial inner side of the member 40 and slidably contacts the outer face of a piston rod 10. The other lip 47 is at the radial outer side of the sealing member so as to contact the outside surface of either a stationary bearing ring 32 or a holding case 38' therefor. The sealing member is further provided with a coupling head 45 engageable with the radial inner tip end portion of a rotary bearing ring 35 so that the sealing member can be made integral with the bearing 30.

Sealing means for a bearing for strut-type suspension

In a rolling bearing for strut-type suspensions, a rotary bearing race 33 has, at its radially inner part, a cylindrical portion 37 having an outwardly extending flange 38. The radial inner end part 41 of the stationary bearing race 34 of the bearing is disposed at such a position so as to be overlapping with the outwardly extending flange 38. At least one of the above-mentioned members confronts and overlaps the other and includes a member having self-lubricating characteristics.

Rolling bearings for strut-type suspensions

A conical roller bearing has a side plate of substantially L-shaped cross section fitted to the larger diameter side end portion of the inner peripheral surface of an outer race. The inner end surface of the side plate and the end surface of the larger diameter portion of a retainer are axially opposed to each other so that the inner end surface and the end surface of the larger diameter portion bear against each other when the cone has moved axially outwardly.

Growing community of inventors

Hiratsuka, Japan

Kenji Takei