A linear, horizontal ball bearing system including preloaded spring centering and spacing means for the balls comprising a flexible sheet perforated for ball retention and having spring connection to a post affixed to a way by compression springs positioned in an aperture in the spacing means.

An antifriction bearing comprises bearing rings and rolling members which are made from a steel material containing 0.15 to 0.3 wt. % of carbon by being subjected to heat treatments including carburizing. The surface layer of raceway surface of each of the bearing rings and the surface layer of rolling surface of each of the rolling members are 1.0 to 1.5 wt. % in carbon content, 64 to 66 in Rockwell hardness C, 150 to 2000 MPa in compressive residual stress, up to 3 .mu.m in maximum carbide par...

An antifriction bearing includes a plurality of rolling elements each having a lateral surface possessing a conical shape, with the rolling elements being positioned between a conical raceway and a cylindrical raceway to roll along the conical raceway and the cylindrical raceway. The lateral surface of each rolling element forms an angle with a center axis of the rolling element that is 3.degree. at maximum, and the lateral surface of each rolling element has a convex curvature that is superimpo...

A rolling bearing of the present invention constructs a current passing structure by fixing a current passing plate 12 fixed to an outer peripheral portion of an inner ring 1a and a current passing sealing plate 10 having a U-shaped sectional shape, whose opening portion is directed inwardly, to the inside of an outer ring 2a so as to surround a current passing plate 12 on a side surface of this U-shaped sectional shape and then sealing a conductive grease 11 into the inside of this U-shaped sec...

A loading aperture is provided in the circumference of the race of a rolling bearing for the insertion of rolling members into the race, and an expandable closure is provided for closing the aperture. The closure may have a slot into which a member, such as a ball or wedge, is inserted, for expanding the closure.

The invention relates to an antifriction body (3), in particular for a magnetic head (1), whose antifriction surface (4) is provided with an antifriction layer (4) which contains diamond crystals and which is provided by means of a CVD process. Damage to the elements sliding past the antifriction layer is precluded in that the antifriction layer (4) contains hexagonal lonsdaleite crystals.

The present invention relates to an antifriction bearing with an external lubricant supply system, which includes a lubricant duct which extends through the outer ring or inner ring of the bearing, and which terminates in the direct vicinity of the rolling elements of the bearing.

Antifriction bearings for transmitting forces between race members movable rectilinearly and rotatively relative to each other in which the bearing elements move to and from bearing positions in closed loop paths that are continuous and extend uninterruptedly for substantially the full effective bearing length of spaced lands on one of the race members.

A process for making an anti-friction material consisting of mixing between about 68 per cent and 84 per cent by weight of a plastic material in powdered form with between about 12 per cent and 28 per cent by weight of glass micro-globules with a grain size from 1 to 44.mu. and a density of 1.45 kg/l, and an antistatic material, and then in heating this mixture at high pressure.

An antifriction alloy containing iron, molybdenum and sulphur, and having a low coefficient of friction, even in the dry state, is disclosed. The alloy contains 8.0-26.6% iron, 41.0-62.5% molybdenum and 23.3-40.5% sulphur. The alloy may comprise a matrix of Fe.sub.x Mo.sub.3+y S.sub.4, where x and y are less than 1. (e.g. FeMo.sub.4 S.sub.5) in which is dispersed FeMo.sub.2 S.sub.4 and/or the .epsilon. phase of the Fe/Mo/S equilibrium diagram. The alloy reacts with a material against which it ru...