Bearing structure for a rotating shaft

Details Bearing structure for a rotating shaft Bearing structure for a rotating shaft

1997-02-26

1998-10-13

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384493, F16C 1904, F16C 1722

Patent

active

058202722

ABSTRACT:
An angular contact bearing (100) has a plurality of first and second rolling elements (1,2) interposed between a rotating shaft (3) and a fixed part (4). An outer ring (5) is secured to the fixed part (4). Formed on the inner periphery of the outer ring (5) is a first rolling contact surface (1a) which is in contact with the first rolling elements (1) on the fixed part side at a predetermined angle. An inner ring (8) is secured to the rotating shaft (3) by nuts (9). Formed on the outer periphery of the inner ring (8) is a second rolling contact surface (1b) which is in contact with the first rolling elements (1) on the rotating shaft side at a predetermined angle. Formed on its inner periphery is a third rolling contact surface (2a) which is in contact with the second rolling elements (2) on the fixed part side at a predetermined angle. An Angular member (6) is secured to the outer ring (5). The Angular member (6) has a fourth rolling contact surface (2b) formed on its inner periphery. The fourth rolling contact surface (2b) is in contact with each second rolling elements (1) on the rotating shaft side at a predetermined angle. The angle at which the first and second rolling elements (1,2) are in contact with the first to fourth rolling contact surfaces (1a, 1b, 2a, and 2c) is set so that, as the temperature of the rotating shaft (3) rises, the shaft (3) itself is displaced to the direction opposite to that of the thermal displacement of a tool (22) attached to the rotating shaft (3).

REFERENCES:
patent: 2488825 (1949-11-01), Palumbo
patent: 4045100 (1977-08-01), Beauchet

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