Ntn Corporation

Tomoaki Kawamura

Kikuo Maeda

Takumi Fujita

Mitsuo Sasabe

Kenji Tamada

Hirokazu Nakashima

Shinji Oishi

Seiji Kanbara

Naoto Shibutani

Toshiaki Ensou

Kousuke Obayashi

Yasuyuki Watanabe

A cam follower is constituted by an outer ring which has an outer track surface in its inner circumference; a stud which has an inner track surface opposed to the outer track surface, a flange portion abutting on one side of the inner track surface, a side plate fitting portion and a mounting shaft portion abutting on another side of the inner track surface in this order, and a fiber flow formed continuously from the flange portion to the inner track surface along their outer circumferences; rolling elements which are arranged between the outer track surface and inner track surface; and an inner side plate which is pressed into the side plate fitting portion to work with the flange portion for limiting axial movement of the outer ring and the rolling elements.

Cam follower and method for producing cam follower

A thrust bearing component is formed of cold-reduced steel sheets and strip having surface roughness of Rmax&#x2266;2 &#x3bc;m and provided by cold rolling a high-carbon steel containing 0.9 wt % to 1.2 wt % of carbon, 1.2 wt % to 1.7 wt % of chrome, 0.1 wt % to 0.5 wt % of manganese, and 0.15 wt % to 0.35 wt % of silicon.

Thrust bearing component

A method is provided for producing a roller thrust bearing having a plurality of rows of rollers, the bearing featuring reduced differential slip, reduced friction and wear, and increased longevity without flaking. The method includes forming a cage to accommodate the rollers, crowning the rollers, and arranging the rollers in pockets such that the rollers held by a pocket have respective end surfaces in direct contact with each other.

Method of producing a roller thrust bearing having a plurality of rows of rollers

There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing including at least two radially arranged rows of rollers and a cage holding the rollers, the rollers including at least one roller crowned.

Roller thrust bearing

Growing community of inventors

Iwata, Japan

Tomoaki Kawamura