Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling facilitates relative axial motion between coupled... – Coupler includes antifriction rolling body engageable with...
Patent
1986-07-24
1988-08-16
Stodola, Daniel P.
Rotary shafts, gudgeons, housings, and flexible couplings for ro
Coupling facilitates relative axial motion between coupled...
Coupler includes antifriction rolling body engageable with...
384517, 464178, F16D 306
Patent
active
047641541
ABSTRACT:
An unlimited sliding ball spline therefore includes a spline bearing consisting of an outer cylinder, a ball retainer provided on the inner side of the outer cylinder, and a plurality of balls held by the ball retainer in a plurality of unlimited passages formed on the inner side of the outer cylinder, in such a manner that the balls can be rolled in the unlimited passages; and a spline shaft supported on the plural balls in the spline bearing. The ball spline is capable of making linear, axial reciprocating movements and torque-transmitting rotational movements separately or simultaneously. A circumferential support bearing is disposed coaxially around the outer cylinder and is rotatable with respect thereto and further has a pair of angular contact bearings located on an inner surface thereof. The angular contact bearings are separated by a pre-pressure regulating spacer. A plurality of balls are located circumferentially between each angular contact bearing and corresponding ball rolling grooves on the outer surface of the outer cylinder.
REFERENCES:
patent: 1399959 (1921-12-01), Hanson
patent: 2157101 (1939-05-01), Smith
patent: 2905008 (1959-09-01), Sears
patent: 3125773 (1964-03-01), Zajac
patent: 3143867 (1964-08-01), Anderson
patent: 3762781 (1973-10-01), Zeldman
patent: 3808839 (1974-05-01), Teramachi
patent: 3986754 (1976-10-01), Torrant
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