Abstract: A telescopic shaft useful, for example, on an automobile steering assembly includes an external sleeve and an internal bolt within the sleeve and axially extending rows of rolling elements in respective axially extending raceways for defining the axial bearing between the bolt and the sleeve. The disclosure concerns a cage for the bearing which is comprised of resilient wire and includes a pair of yokes at the axially opposite ends of the rows of rollers, and the yokes are held together by lengths of wire at their circumferential ends. The yokes are of a circumferential length so as to cover the axial ends of the rows of rollers, whereby the yokes generally extend over more than 180.degree.. One cage yoke includes radially directed extensions which extend into a borehole in the bolt or the sleeve. The one yoke is interrupted intermediate its arcuate length and the extensions are defined at the interruption.

Abstract: The disclosure concerns a ball bushing which is adapted for unlimited longitudinal movement on a shaft. The ball bushing includes a sleeve having a plurality of longitudinally extending ball channels defined in it. Each ball channel has two longitudinally extending sections which are joined by two curved sections at the end of the longitudinal sections. A needle is positioned in and extends the length of each channel and the longitudinal sections of the ball channel are shaped and positioned so that the needle contacts and guides and prevents falling out of the balls in each longitudinal section. The curved sections of the ball channel wrap part way around the needle.

Abstract: A guide element for translational and rotational movements of a shaft comprises an external sleeve 1 and a casing 2 containing closed circulation circuits 4 in which ball-bearings 6 and 7 move. The sleeve 1 has a continuous bore 3 on its circumference which ensures contact of the loaded ball-bearings between the shaft 8 and sleeve 1, and the radial return passage of these ball bearings during recycling, the closed circuits 4 being in two separate categories, the first category containing ball-bearings 6 smaller than the ball-bearings 7 of the second category, and means are provided to hold the casing 2 longitudinally with respect to the sleeve 1.

Abstract: The invention relates to a guide element for unrestricted linear movement and/or rotary movement, involving ball-bearing contact on a shaft. The guide element comprises an external sleeve (1), ball-bearings (2) being arranged in circulation circuits (3) made in a tubular housing (4), the sleeve (1) having in its bore working sections (5) ensuring alternating contact between the ball-bearings (2) and shaft (7), and shallow disengagement sections (6) permitting recycling of the ball-bearings. The housing (4) is provided with at least six closed ball-bearing circulation circuits (3) arranged uniformly in equidistant pairs (13), the number of these pairs (13) of closed circuits (3) being half the number of the sections (5), and the two adjacent rectilinear sections of the two circuits of a pair (13) form an angle at the center smaller than and at most equal to the angle at the center of a section (5).

Abstract: A measuring apparatus for measuring forces acting upon a bearing, particularly the radial forces, effective at a roller bearing. The measuring apparatus essentially comprises two rings, typically formed of metal, which are concentrically interconnected by means of a web. The roller bearing transmits the force to be measured to one of the rings, whereas the other ring is fixed. The one ring rocks or moves in relation to the fixed ring and the deformation prevailing at the web is electrically measured and indicated in a display or indicator device. The measuring apparatus serves for measuring the tension in belts, bands, and the like.