Tapered roller bearing capable of sustained operation without lu

Details Tapered roller bearing capable of sustained operation without lu Tapered roller bearing capable of sustained operation without lu

1984-02-08

1986-07-22

Levy, Stuart S.

Bearings

Rotary bearing

Antifriction bearing

384571, 384902, F16C 3358, F16C 3336, F16C 3366

Patent

active

046015922

ABSTRACT:
A tapered roller bearing has a porous rib ring against which the large ends of its wrought steel tapered rollers bear so that the ring prevents the rollers from being expelled. The rib ring is formed from porous powdered steel that has been compacted to a density of about 70% to 85% of theoretical and then sintered and machined. Thereafter, the machined rib ring is etched to expose the pores at the surface against which the large ends of the rollers bear. Finally, the rib ring is impregnated with oil. Should the bearing lose its normal supply of lubrication, the critical region of contact between the abutment face on the rib ring and the large ends of the rollers will nevertheless be adequately lubricated for a reasonable time by lubricant which escapes from the pores of the rib ring. The cage of the bearing may be piloted by the rib ring and by a ring-like cup insert that is formed in the same manner as the rib ring.

REFERENCES:
patent: 2785023 (1957-03-01), Naumann
patent: 3582164 (1971-06-01), Derner
patent: 3630584 (1971-12-01), McKee
patent: 3675978 (1972-07-01), McKelvey
patent: 3782795 (1974-01-01), Richey et al.
patent: 3811743 (1974-05-01), Wren
patent: 4226484 (1980-10-01), Glassow

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