Bearings – Rotary bearing – Antifriction bearing
Patent
1988-12-01
1989-08-29
Footland, Lenard A.
Bearings
Rotary bearing
Antifriction bearing
384594, 384620, 384621, F16C 1938
Patent
active
048611719
ABSTRACT:
A composite cylindrical roller bearing assembly including an inner ring having an annular projection on its outer peripheral side, an outer ring having an annular recess to receive the annular projection on its inner peripheral side, upper and lower cylindrical thrust rollers held by upper and lower retainers and disposed in upper and lower spaces formed above and below the projection in the recess, cylindrical radial rollers held by a retainer and disposed in an annular space between peripheral surfaces of the recess and the projection, and an annular gear to be meshed with an external gear. The inner ring is divisibly composed of first, second and third annular inner ring sections each of which is divisibly composed of two generally semicircular parts. One of the above annular inner ring sections has projections defining teeth of the annular gear on its inner peripheral side. The outer ring is also divisibly composed of first and second annular outer ring sections each of which is divisibly composed of two generally semicircular parts. The retainers for the thrust rollers and radial rollers each are divisibly composed of three arc-like parts. Thereby this bearing assembly is easy to carry or treat on the occasions of transportations and repairs no matter how big the bearing assembly is, and any scaling-up as desired is possible.
REFERENCES:
patent: 1436283 (1922-11-01), O'Connor
patent: 3652141 (1972-03-01), Husten et al.
patent: 3802755 (1974-04-01), Schluter et al.
patent: 4573811 (1986-03-01), Andree et al.
Footland Lenard A.
Koyo Seiko Co. Ltd.
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