B - Operations – Transporting – 64 – C
Patent
B - Operations, Transporting
64
C
B64C 27/32 (2006.01) F16C 19/20 (2006.01) F16C 33/37 (2006.01)
Patent
CA 2581805
In a rotary wing aircraft tail rotor head assembly having a ball bearing (30) on a spindle at the head of a rotor wing, the ball bearing (30) contains slug ball separators (10) between the balls (24) in the bearing (30). The separator (10) may be made from PEEK, PTFE, or polyimide. The ball-to-ball separation between two balls of like diameter provided by the separator may about 3.2 to about 64% of the diameter of one of the balls. A separator may have an annular configuration that defines a passage therethrough, the passage having two ends and the interior of the separator being tapered to define a maximum diameter at each end and a minimum diameter therebetween. The taper of the chamfered surface (18, 20) of the slug ball separator may define a conical angle of about 75° to about 120°. A ball bearing as described herein may also be used in a rotary wing aircraft swashplate (35) having a stationary plate (36), a rotating plate (38); and a thrust bearing (30) between the stationary plate (36) and the rotating plate (38).
Roller Bearing Company Of America Inc.
Smart & Biggar
LandOfFree
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