Roller chain

Details Roller chain Roller chain

1999-04-19

2000-08-15

Footland, Lenard A.

Bearings

Rotary bearing

Plural bearings one plain and one antifriction

384420, 384469, 384569, 384587, F16C 2100

Patent

active

061025739

ABSTRACT:
A roller chain includes a sintered oil-impregnated bushing loosely fitted coaxially on a connection pin for outer plates, a roller fitted for rotation on and around the sintered oil-impregnated bushing, and a needle roller bearing interposed between the sintered oil-impregnated bushing and the roller and having grease charged therein. Lubricant of the sintered oil-impregnated bushing side and the grease of the needle roller bearing side supplement oil components to each other and the overall amounts of the grease and the lubricant of the roller chain can be effectively utilized to allow the roller chain to be used without supplement lubricant for a long period of time. Thus, the roller chain can suppresses a local out-of-oil condition and make effective use of the overall amount of available oil components of grease to assure a reduced frictional resistance upon running of the roller chain for a long period of time thereby to exhibit a superior abrasion resistance and durability.

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