Cage for roller bearings
AssigneeNtn Corporation
InventorsKazuyoshi Harimoto, Tsutomu Hashimoto, Eiji Ohsugi, Keiji Suzuki, Kiyoshi Kaneko, Atsushi Yamashita
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Abstract
A cage for a roller bearing which is free of fretting and abnormal noise, which can be manufactured at low cost, and which can be easily mounted in the bearing. The cage is formed by bending a metal sheet having pockets into a ring shape, temporarily joining its ends, heat-treating the ring thus formed to remove stress, and separating the temporarily joined portion. Such a cage tends to rotate slower than the raceway members on the driving side of the bearing, making it possible to reduce fretting. Such a cage can be used under high-temperature conditions.
Claims6
A cage for use in a roller bearing wherein said cage is in the form of a ring-shaped member formed with a plurality of circumferentially arranged roller-receiving pockets and having a cut portion in circumference thereof, and wherein said ring-shaped member is subjected to a heat treatment to remove any stresses in the cage after temporarily joining said cut portion by welding.
Dependencies are inferred from the claim text.