Abstract: A guide carriage 12 is guided on a guide rail 10 by rollers 12a. The rollers 12a engage guideways 10c. For lubricating the guideways 10c there are mounted on the end faces of the guide carriage 12 plate-shaped housings 14. Constructed in these plate-shaped housings are guides 24 for lubricating element fittings 26. The lubricating element fittings accommodate track lubricating elements 34 of felt. The lubricating element fittings 26 are pressed against the guideways 10c by pre-tensioning springs 42. The track lubricating elements 34 are captively accommodated in the lubricating element fittings 26. The lubricating element fittings 26 are captively guided in the guides 24. The track lubricating elements 24 are in a lubricant conductive connection with lubricant supply chambers 40 within the plate-shaped housing 14.

Abstract: An angular contact ball bearing consisting of an inner race and an outer race, each of which contains at least one ball track in which a ring of balls rolls, at least one ball track of one race being bounded by a high rim on one side and by a low rim on the opposite side, characterized in that the low rim (8,10,24,25,28,29,43,53) on one of the races (1,2,14,17,18,35,46) has an out-of-round contour having a number of higher portions (11,30) and lower portions (12,31), the lower portions (12,31) leading preferably steplessly into the lowest point of the ball track (3,4,15,16,19,20,39,49), the out-of-round contour being such that the enveloping contour of the higher portions (11,30) of the rim (8,10,24,25,28,29,43,53) corresponds to the enveloping contour of the balls (5,21,22,33,44) disposed in the other race (1,2,14,17,18,36,47) when one of the races (1,2,14,17,18,36,47) is subjected to elastic out-of-round deformation by the action of pressure.