Bearing split cage

• US 4,239,304 A
• Filed: 03/28/1979
• Issued: 12/16/1980
• Est. Priority Date: 03/28/1979
• Status: Expired due to Term

• Current Assignee: The Torrington Company (The Timken Company)
• Original Assignee: The Torrington Company (The Timken Company)
• Inventors: Wakunami, Teruaki
• Primary Examiner(s): Schmidt, Frederick R.
• Application Number:
  US06/024,611
• Time in Patent Office: 629 Days
• Field of Search: 308/201, 308/202, 308/207 R, 308/217, 308/218, 308/212, 308/213
• US Class Current: 384/573
• CPC Class Codes: F16C 19/463 consisting of needle rollers held in a cage, i.e. subunit without race rings
• CPC Class Codes: F16C 2300/02 General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
• CPC Class Codes: F16C 33/504 with two segments, e.g. two semicircular cage parts

Abstract

A cage for a roller bearing is discontinued at a plurality of locations on the circumference of a circle and has connector means for connecting adjacent cage pieces at opposed boundary surfaces of the discontinuous portions. Each of the adjacent cage pieces has connector means constructed so the adjacent cage pieces cannot be separated in a circumferential direction. Circumferential clearances permit enlargement and reduction of the diameter of the cage. If desired, the connector means may be constructed to also prevent the adjacent cage pieces from separating radially or axially, or both.

Claims

1. A roller bearing cage comprising:

a pair of cage pieces, said cage pieces having interconnected connector means, each connector means being constructed to prevent the separation of the cage pieces and having at least one circumferential surface in slidable contact with at least one circumferential surface of the other connector means, said connector means also being constructed to permit limited relative circumferential movement of the cage pieces to permit the enlargement and reduction of the diameter of the cage.

2. A cage in accordance with claim 1 wherein:

one connector means comprises a T-shaped member on one cage piece with the other cage piece having a T-shaped opening for receiving the T-shaped member;

the dimensions of the T-shaped member and the dimensions of the T-shaped opening being such that limited relative circumferential movement of the cage pieces is permitted for enlargement and reduction of the diameter of the cage.

3. A cage in accordance with claim 1 wherein:

each connector means comprises at least one L-shaped member, with the L-shaped member of one connector means being radially opposite to the L-shaped member of the other connector means, the dimensions of the L-shaped members being such that limited relative circumferential movement of the cage pieces is permitted for enlargement and reduction of the diameter of the cage.

4. A cage in accordance with claim 1 wherein:

each connector means comprises an arm and a finger, said fingers extending in opposite axial directions and adapted to engage one another, the dimensions of the arms and the fingers being such that limited relative circumferential movement of the cage pieces is permitted for enlargement and reduction of the diameter of the cage.