F - Mech Eng,Light,Heat,Weapons – 16 – C
Patent
F - Mech Eng,Light,Heat,Weapons
16
C
308/20
F16C 17/04 (2006.01) F16C 17/06 (2006.01)
Patent
CA 1239184
ABSTRACT A thrust bearing for use with a shaft having a collar mounted thereon, comprises a base ring, a series of shoes positioned on the base ring and a shoe pivot on each shoe allowing the shoe to pivot in any direction. An oil distribution groove is formed in the working face of each shoe near the leading edge of the shoe and extending radially for substantially the entire distance between the inner and outer diameter edges of the shoe. A bleed groove extends radially from the inner end of the oil distribution groove to the inner diameter edge of the shoe for supplying oil to the inner diameter area of the shoe downstream of the bleed groove which downstream inner dia- meter area would otherwise be starved of oil by the centrifugal inertial effects of rotating the collar. An oil supply hole for each groove extends axially through the base ring near the outer diameter edge of the base ring. An associated oil feed tube is connected between the oil supply hole and the outer end of the oil distribution groove near the outer diameter edge of the shoe. The oil feed tube has a near end with a ball shape and an annular recess with an O-ring seated in the recess, and a far end with a ball shape and an annular recess with an O-ring seated in the recess. A socket is formed in each shoe and is connected to the oil distribution groove at its outer end for receiving the near end of the oil feed tube and its O-ring to seal the tube against oil leaks. An equal number of sockets is formed in the base ring for receiving the far ends of the oil feed tubes and the associated O-rings to seal the tubes against oil leaks. Shoulders are formed at the openings to the sockets for retaining the ends of the tubes in the sockets. A retainer pin extends radially from each shoe into an annular groove in the base ring to assist in retaining the shoe on the base ring.
475104
Kingsbury Inc.
Smart & Biggar
LandOfFree
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