Tapered roller bearing capable of sustained operation...

Details Tapered roller bearing capable of sustained operation... Tapered roller bearing capable of sustained operation...

F - Mech Eng,Light,Heat,Weapons

16

C

308/35

F16C 19/34 (2006.01) F16C 19/36 (2006.01) F16C 33/60 (2006.01) F16C 33/66 (2006.01)

Patent

CA 1191182

ABSTRACT A tapered roller bearing has a porous rib ring against which the large ends of its tapered rollers bear so that the ring prevents the rollers from being ex- pelled. 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. To expose the pores at the surface against which the large ends of the rollers bear, the machined rib ring is etched. 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 never- theless be adequately lubricated for a reasonable time by lubricant which escapes from the pores of the rib ring. The cage of the bearing is piloted by the rib ring and by a ring-like cup insert that is formed in the same manner as the rib ring.

423843

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