F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
74/296
F16B 1/00 (2006.01) F15B 15/26 (2006.01) F16D 1/091 (2006.01) F16D 1/095 (2006.01)
Patent
CA 1089681
THRUST COLLAR ABSTRACT OF THE DISCLOSURE Disclosed is a thrust retaining device for positive axial securing of a part on a smooth shaft or within a smooth bore without shoulders, threads, grooves or holes. The thrust retaining device for use on a shaft includes a contractible inner collar ring for retaining thrust by having one end positioned against the part to be secured, an outer collar ring to be placed over the inner collar ring for contracting it, and loading screw means attached to the outer ring for applying axial force to the outer ring. The inner ring has an inner surface for gripping the shaft when contracted and an outer surface which is axially inclined at a shallow angle and matches an axially inclined inner surface of the outer ring. At least one of the axially inclined surfaces of the inner ring and outer ring is coated with a stable anti-friction material preventing metal-to- metal contact at static pressure. The shallow angle of the inclined surfaces and the slippery anti-friction material offer less resistance to axial sliding of the outer ring on the inner ring than sliding of the inner-ring on the shaft. Therefore, axial force applied to the outer ring in the direction of angle inclination causes contraction of the inner ring and gripping of the shaft.
298424
George H. Riches And Associates
Stratienko Andrew
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