US 7,611,285 B2
	Linear ball bearing
Dietmar Rudy, Kleinbundenbach (Germany); Ralf Moseberg, Kindsbach (Germany); Michael Heid, Kleinblittersdorf (Germany); Patrick Daniel, Kirkel (Germany); and Wolfgang Bauer, Riegelsherg (Germany)
Assigned to INA-Schaeffler KG, Herzogenaurach (Germany)
Appl. No. 10/552,341 PCT Filed Mar. 26, 2004, PCT No. PCT/EP2004/003191 § 371(c)(1), (2), (4) Date Dec. 08, 2005, PCT Pub. No. WO2004/090359, PCT Pub. Date Oct. 21, 2004.
Claims priority of application No. 103 17 049 (DE), filed on Apr. 11, 2003.
Prior Publication US 2006/0210204 A1, Sep. 21, 2006
Int. Cl. F16C 29/06 (2006.01)

U.S. Cl. 384—45  [384/43]

3 Claims

1. A linear ball bearing having a guide carriage (2) which is guided on a guide rail (1) in a longitudinally displaceable manner and is mounted in rolling contact on longitudinal sides of the guide rail (1) via balls (3) which are arranged on each longitudinal side in at least two parallel ball rows (4, 5) encircling in endless ball channels (6), each ball (3) of the one ball row (5) together with an adjacent ball (3) of the other ball row (4) being held in cage pockets (8) of a common cage piece (7), characterized in that the cage piece (7) has exactly two cage pockets (8) for one ball (3) each from both ball rows (4, 5), each cage piece (7), as viewed in the running direction of the balls (3), being provided at both ends with convexly curved end surfaces (9) for contact with the end surfaces (9) of adjacent cage pieces (7), which end surfaces (9) extend essentially up to the cage piece sides (10).