Fixed constant-velocity universal joint

Details Fixed constant-velocity universal joint Fixed constant-velocity universal joint

2007-09-04

2011-10-04

Binda, Gregory (Department: 3679)

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Coupling accommodates drive between members having...

Coupling transmits torque via radially spaced ball

C464S906000

Reexamination Certificate

active

08029374

ABSTRACT:
A fixed constant velocity universal joint is made compact, has little decrease in load capacity even when the fixed constant velocity universal joint is made compact and is at an operating angle, and has improved high angle strength and durability through lessening instances in which a ball runs over a track at a high angle. In the fixed constant velocity universal joint, a cage includes four pockets, the pockets including a pair of long pockets of which a circumferential direction spacing is wide and a pair of short pockets of which the circumferential direction spacing is narrow. The pair of long pockets are shifted by 180 degrees along a circumferential direction and the pair of short pockets are shifted by 180 degrees along the circumferential direction. As a result, the long pockets and the short pockets are alternately disposed along the circumferential direction. A long pocket houses two balls. A short pocket houses one ball. Two ball housing sections connected by a slit are formed in the long pocket by projections that project towards a long pocket inner side being provided on opposing long sides of the long pocket.

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International Preliminary Report on Patentability and Written Opinion of the International Searching Authority mailed Mar. 17, 2009 for International Application No. PCT/JP2007/067191.
International Search Report mailed Oct. 9, 2007 for International Application No. PCT/JP2007/067191.
Chinese Office Action issued Dec. 31, 2010 in corresponding Chinese Application No. 200780034270.2 w/English translation.

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