Ball bearing and lubricating method thereof

Details Ball bearing and lubricating method thereof Ball bearing and lubricating method thereof

2006-01-17

2006-01-17

Graham, Matthew C. (Department: 3683)

Bearings

Rotary bearing

Antifriction bearing

C384S462000, C384S907000, C384S526000

Reexamination Certificate

active

06986606

ABSTRACT:
The churning type of grease of a viscosity of 15–20 mm2/s and a worked penetration of 200˜230 is disposed at the rolling surface of the race portions and the channeling type of grease of 25˜35 mm2/s and a worked penetration of 240˜270 is disposed at the retainer. By constituting as such, at rotation of the ball bearing, maintaining the lubricant oil film in the bearing the lubrication can be continued, and at non-rotation of the ball bearing the lubricant oil film is protected by the grease to prevent fretting.

REFERENCES:
patent: 3212832 (1965-10-01), Mayer et al.
patent: 4797011 (1989-01-01), Saeki et al.
patent: 4997295 (1991-03-01), Saitou
patent: 5529401 (1996-06-01), Gabelli et al.
patent: 5728020 (1998-03-01), Muranaka et al.
patent: 0 036 690 (1981-09-01), None
patent: 0 275 080 (1988-07-01), None
Patent Abstracts of Japan, vol. 009, No. 311, Dec. 7, 1985 (1 page) - Abstract of JP 60 146917A (NTN TOYO Bearing KK) Aug. 2, 1985 *abstract*.

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