Abstract: A clutch release bearing for use with a friction clutch for automotive vehicles having a ring-shaped spring release member. The clutch release bearing is formed as an anti-friction bearing wherein one of its race members has a portion extending axially away from the rolling bodies. The extending portion projects a distance sufficient to be inserted within the bore of the spring release member and to pass behind the rear wall and engage therewith. The race members of the bearing are made of sheet metal and are folded to provide substantially radial walls adapted to engage the front face of the spring release member or the clutch release actuating member. The projection of the one race member may be cylindrical or it may project as a ring-shaped body having slots forming resilient fingers interengaging with the arms of the spring release member.

Abstract: A ring for locking and spacing two components situated in a cylindrical bore, characterized in that said ring has a closed uninterrupted angular shape and comprises a weakened part which allows the adjacent end parts to be pressed to each other without disengaging said end parts from said weakened part.

Abstract: A metallic heat exchanger for heat transfer between a first medium flowing in tubes and a second medium flowing about the tubes and within an outer housing, the device including internal walls which divide the housing into three chambers with outlets and inlets to define a single continuous passage, the tubes extending through the chambers such that counter-flow heat exchange occurs in the first chamber, parallel flow heat exchange in the second chamber, and counter-flow heat exchange in the third chamber.

Abstract: A bushing for journalling a shaft having a cage for retaining a plurality of bearing balls and an annular packing for sealing the space between one end of the cage and the shaft. The packing and the cage are formed with cooperating axial projections and recesses which form interengagements for securing the packing on the end of the cage.

Abstract: A plastic cage for a ball bearing in which flexible wipers are disposed between the ball pockets and extend axially at least as far as the projections which define the mouths of the pockets.

Abstract: A ball bearing comprising an outer sleeve with raceways formed therein, and having an axial bore and a retainer including a plurality of ball guideways distributed over the periphery thereof. The ball guideways comprise axial guideway sections and semicircular deflecting way sections connecting the axial guideway sections by pairs; the outer sleeve has a length which corresponds to the length of the axial guideway sections in the retainer, the retainer being made of synthetic material and projecting with the semicircular deflecting way sections beyond the outer sleeve; and end rings mounted on projecting sections of the retainer for covering the deflecting zone.

Abstract: A clutch release device for use with a thrust bearing has a sliding sleeve formed as a cylinder with a flange extending radially outward, and a transition shoulder between the cylinder and flange; a radially extending reference plane extends through said shoulder, and said flange has portions thereof displaced axially, with said reference plane being equidistant from said flange and said displaced portions.

Abstract: A dynamoelectric machine wherein rotor cooling is effected by cooling channels located in the stator structure.

Abstract: A clutch release device, particularly for motor vehicles, with a self-centering clutch thrust bearing, having a fixed bearing ring, and which is located with radial play with respect to a bearing support, and which has; a sliding sleeve forming the bearing support, an additional sleeve connected to the sliding sleeve, the fixed bearing ring nonrotatingly contacting a contact surface of the additional sleeve, means preventing the fixed bearing from rotating on the additional sleeve, the additional sleeve, at the area of contact with the contact surface, being offset in a direction toward the clutch thrust bearing, the additional sleeve, in the offset, having at least two diametrically opposed recesses for engaging fixed means located on the periphery of the fixed bearing ring for protecting the clutch release bearing from rotation with respect to the bearing support.

Abstract: A bearing assembly having inner and outer bearing rings and a plurality of sliding bearing disks, one of these disks being a force measurement sliding disk having the same dimensions as one of the sliding bearing disks and positioned between the rings in the main load zone of the bearing assembly as a replacement for one of the sliding bearing disks, the force measurement disk being in a recess position between the rings and the other disks and comprising a carrier member with a force measuring transducing element mounted thereon.

Abstract: Rock bit for drilling holes in the earth's crust which can be connected to driving means and being provided with supports or rock bit legs in which rotatable cutting elements or cutter cones are journalled, wherein a rock bit support comprises a removable part to which the bearing outer race ring is connected, the support part being a regularly shaped spatial body having edges which, in the assembled position, are situated in boundary planes of the support or rock bit leg.

Abstract: A method for making a stator for an electric machine which is simple, relatively inexpensive and permits mass production of motors having excellent operating characteristics including accurate centering of the rotor for silent and vibration-free function and efficient cooling of the windings and bearings. The method consists of the steps of supporting casings in a position surrounding the winding heads in sealing relation with opposite ends of a lamination stack, positioning a mandrel in the stator cavity having locating means engageable with the stator stack and means on its outer surface to define axial and radial locating positions for bearing shields. The casings, laminations and mandrel define a pair of enclosed cavities at opposite ends of the stator stack. A curable molding material is injected into the cavities by means of centrifugal force and thereafter the molding material is cured to complete the stator assembly.

Abstract: An axially movable ball bearing includes a cage having a plurality of circumferentially distributed guideways, each guideway including first and second axially extending channels joined at their ends by semi-circular sections. A plurality of balls are provided in each of the guideways. The first channels are open radially inwardly so that the balls therein may engage a shaft along which the bearing is adapted to move. A thin-walled metal housing is tightly fitted over the cage, and has bridge sections aligned with the first channels. The bridge sections have on their radially inner surfaces, guide courses for engaging the balls in the first channels. The housing is slotted between the bridge sections, so that the second channels project radially outwardly between the bridge sections. The bridge sections are joined together at each axial end of the bearing by end rings. The metal housing has a greater hardness in the region of the courses of the bridge sections than in the other regions thereof.

Abstract: A hydraulic release mechanism for automotive clutches and the like comprising a housing and a bearing assembly. The assembly comprises a non-rotating race ring, a rotatable race ring adapted to be connected to an operating element for said clutch and a plurality of rolling elements arranged therebetween. The bearing assembly is mounted with respect to the housing for axially slidable movement and radially floating movement. The housing under pressure, the force of which is transmitted through the end of the non-rotating race ring, the rolling elements, and the rotating race ring to the clutch operating element. Preferably, the means for mounting the bearing assembly with respect to said housing comprises a flexible bellows.

Abstract: A castor wheel having a fork at which upper part a rolling bearing is applied and being provided with a support means or support plate to which by bolt fastening a load or carriage can be connected, the support means being provided with a relatively thin, slightly deformable layer having projections which fit around the support means wherein the layer has projections which fit through bolt openings of the support means by means of a rim-part which resiliently fits over the edge of a bolt opening.

Abstract: A bearing cage for use in a bearing having inner and outer rings, a plurality of balls arranged in two axially spaced rows between the rings, and a cage for separating the balls, the cage being dimensioned to permit relative motion between the rows of rolling elements, or between the rolling elements in their respective rows.

Abstract: A thrust ball bearing has an outer cup-shaped ring and an inner cup-shaped ring. A ball bearing assembly of a plurality of balls and a cage is arranged between the closed ends of the bearing rings. The closed bottom of the outer ring is curved, with the center of curvature being on the side thereof toward the bearing assembly. The bearing rings have thin walls, and the thrust ball bearing is particularly adaptable for use as a clutch throw-out bearing.

Abstract: A mount for a bearing comprising a hub portion having a cylindrical surface defining a seat of a predetermined diametral dimension to firmly support a race ring of the bearing. The mount is made of a molding material having a different longitudinal expansion coefficient than the bearing ring and a spiral cast in the molding material and made of a material having the same longitudinal expansion coefficient as the bearing ring. The spiral is mounted in a predetermined position so that at least a portion thereof forms the surface defining the seat. In the preferred embodiment, the spiral is in direct contact with the bearing ring.

Abstract: In a hydrostatic bearing for rotatably supporting therein a member comprising a shoe having an arcuate first surface confronting the member and having formed therein a pocket for a fluid under pressure, the first surface and said member being of a predetermined relative configuration to provide essentially a line contact therebetween, the improvement comprising means defining a projection in said pocket having a second surface confronting the member of generally the same contour as said first surface to provide an additional essentially line contact between said member and said second surface.

Abstract: A clutch bearing assembly has inner and outer rings defining a race for ball bearings. The outer ring is adapted to engage a clutch lever, and the inner ring is adapted to be a stationary ring. A sliding sleeve for the assembly is coupled to the inner ring by deformable elements positively affixed to one of these members. The deformable elements may be wire bights having their ends axially inserted in grooves in the inner ring and sliding sleeve. Alternatively, the deformable element may be a spiral spring radially engaging an axial extension of the inner ring and having ends inserted in axially extending holes in the sliding sleeve.