Ball bearing for small size fan

Details Ball bearing for small size fan Ball bearing for small size fan

1997-02-18

1999-07-20

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

F16C 3341

Patent

active

059248009

ABSTRACT:
A ball bearing for a small size fan for supporting an axis of rotation of an impeller is formed of four or five balls (21), a crown-shaped cage (25), an inner ring (22), and an outer ring (23). By using an optimized number of the balls (21) under the working condition of a ball bearing for a small size fan, structually useless portions are eliminated. Further, by adopting the crown-shaped cage (25), reduction of the cost and the friction torque is attained, and a ball bearing having necessary and sufficinet durability is provided. By incorporating the ball bearing in a small size fan, reduction of the cost, simplification of the structure, and reduction of the electric power consumption of the small size fan are facilitated, thereby improving the commerciality as a small size fan.

REFERENCES:
patent: 1124481 (1915-01-01), Long
patent: 4116505 (1978-09-01), Stahlecker
patent: 4715247 (1987-12-01), Honda et al.

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