Grease fitting

Details Grease fitting Grease fitting

F - Mech Eng,Light,Heat,Weapons

16

N

184/51

F16N 21/02 (2006.01)

Patent

CA 1152006

GREASE FITTING ABSTRACT An improved grease fitting is provided particu- larly suitable in high pressure applications where a polyester plasticizer is intermingled with a lubricant. In one embodi- nent of the invention, a metal ball is biased by a cylin- drical helical spring for sealing engagement with a plastic seat. A leg of the spring passes through the axis of the fitting, so that when grease is forced through the fitting, the unseated ball moves radially to allow the plasticizer and lubricant to pass through the fitting with less resis- tance. The helical spring is eniose in a sleeve, and a ?? or the sleeve enables the end of the sleeve to compress the plastic seat to a predetermined extent, thus prolonging the expected life of the plastic seat.

370948

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