Abstract: A linear moving ball bearing has a cage with axially extending ball guide channels joined at their ends by semi-circular turn around channels, one of the axially extending channels being open radially inward for load carrying balls and the other axially extending guide channel directing unloaded balls. An outer sleeve closely surrounds the cage as it continues in the region of the axially extending guide channels, and has crescent shaped slots extending therethrough aligned with the semicircular turn around channels.

Abstract: In a noise reducing disengagement device for motor vehicle clutches having rolling elements and adapted to be radially displaceable with respect to a sliding sleeve, the bearing includes an apertured fixed race having a radially directed flange on a plate fixedly mounted with respect to the sleeve. The fixed race has a damping ring coupled thereto and contacting the flange on the side toward the rolling elements, and at least three damping members distributed on the circumference of the plate. The plate includes a plurality of recesses, the damping members passing through the apertures in the fixed race and entering the recesses in the plate.

Abstract: A method of manufacturing a seamless outer sleeve for a ball bearing, wherein the sleeve is formed of a hollow cylindrical tube section of uniform wall thickness, with race sections paralleling its axis, projecting radially inward, and formed by non-cutting methods, after which the outer circumference of the sleeve section is cut away by the amount of the depth of the race sections. The race sections for the load-carrying balls are non-cuttingly formed by embossing adjoining ends of race sections together with race transitions which are inclined with respect to the longitudinal direction. The race sections can be slightly arcuate with respect to the longitudinal direction of the sleeve and formed by rolling.

Abstract: In a rolling bearing for longitudinal movement with respect to a shaft, the rolling elements have longitudinal cross sections with concave central sections adapted to engage a cylindrical machine element, and shaped ends adapted to roll on a support surface of the machine element. The bearing includes a shell structure for guiding the rolling elements to follow continuous pathways. Each pair of adjacent rolling elements are separated from contact with one another by a separating roller having a convex longitudinal cross section which engages the concave portions of the rolling elements with line contact.

Abstract: A rotary drill bit assembly comprising a drill bit body, at least one trunnion formed integrally with the drill bit body and a rotary cutter rotatably supported on the trunnion by bearing means. The bearing means consist of at least two rows of balls which ride between an inner raceway groove formed integrally in the trunnion and an outer raceway groove formed in the interior peripheral surface of the rotary cutter. A filling hole or port is provided in the drill bit body which terminates at its inner end in each raceway so that the balls of the corresponding row may be assembled in the annular space between the trunnion and rotary cutter. A filler pin closes the corresponding filling hole or port and has a terminal end which complements the cross section of the raceway groove.

Abstract: A cage for a rolling bearing has spreadable holding projections defining pockets for receiving rolling elements. In order to inhibit separation of the rolling elements from the cage after insertion of the rolling elements between the holding projections, the cage has deformable or spreadable cage portions positioned to be spreadable or deformed after insertion of the rolling elements in the cage, for supporting the adjacent holding projections against movement away from the adjacent rolling elements.

Abstract: A linear motion ball bearing having an outer sleeve and a cylindrical ball-guide cage with endless rows of balls axially movable on a central shaft, the cage defining for each row a main guideway for loaded balls engaged by a race plate and a return guideway for unloaded balls, this race plate situated partially in a recess extending radially inward in the cage and partially in a depression extending radially outward in an adjacent portion of the bore surface of the outer sleeve. During assembly of the bearing the race plates are movable radially inward when the cage is inserted axially into the bore of the outer sleeve, and the race plates are moved radially outward into the depressions of the sleeve when balls are inserted in the cage's guideways.

Abstract: An edge ring adapted to be mounted in an annular groove adjacent one axial end of a bearing ring. The edge ring is slit in at least one location about its periphery to define a separation joint. An insert member engages in the separation joint and is secured to the bearing ring to seat the edge ring in the annular groove. A bearing comprising inner and outer rings and a plurality of rolling elements in the annular space between the rings and at least one edge ring mounted in an annular groove at one axial end of one of the rings slit at least at one location to define a separation joint and including an insert member engaging in the separation joint and secured to the bearing ring to seat the edge ring in the annular groove.

Abstract: A conveyor belt roll assembly comprising a roll casing, a roll end mounted at opposite axial ends of the roll casing and a rolling bearing with a first bearing ring supported in the roll end and a second bearing ring secured in an axial direction by means of a ring member connected to the shaft. The roll end has a radially outwardly directed flange with corrugations at its outer edge extending in a peripheral direction and the ring member axially securing the bearing on the shaft is arranged outside of the bearing. The conveyor belt roll assembly further includes a radially outwardly directed disc fastened to the shaft and forming a radial sealing slot with the axial outer face of the roll end.

Abstract: In a clutch release device, a clutch release lever engages one ring of a clutch release bearing, and the bearing ring and release lever are formed to inhibit relative rotation therebetween. For this purpose, the bearing ring may have a polygonal outer surface, in which case the release lever may have parallel flanges between which opposite parallel surfaces of the polygonal section of the bearing ring may be inserted. Alternatively, the release lever may have a wedge shaped portion adapted to engage a braking surface of the bearing ring, formed of a plastic material. In a further modification, the bearing rings have grooves or corrugations in a radially extending surface and adapted to be engaged by one or more projections on the clutch release lever.

Abstract: A rotary drill bit having a drill bit body and at least one trunnion projecting from the drill bit body and a rotary cutter supported on at least one pair of radial rolling bearings on the trunnion. The rolling elements of at least one bearing are guided on at last one axial end facing the drill bit body in an outer bearing race groove incorporated in the bore of the rotary cutter. The inner bearing groove is formed on the trunnion for the rolling elements of the radial roller bearing. A filling opening is provided for assembly of the rolling elements comprising a channel which extends through the drill bit body and trunnion and is essentially axially oriented having one terminal end adjacent the inner bearing race groove and at least one filler piece for sealing the opening. The filling opening is arranged to provide a common filling means for each radial bearing.

Abstract: A rotary drill bit having a drill bit body and at least one trunnion projecting from the drill bit body and a rotary cutter supported on at least one radial roller bearing on the trunnion. The rolling elements of the bearing are guided on at least one axial end facing the drill bit body in an outer bearing race groove incorporated in the bore of the rotary cutter. The inner bearing race groove is formed on the trunnion for the rolling elements of the radial roller bearing. At least one filling opening is provided which extends through the drill bit body and trunnion and is essentially axially oriented having one terminal end adjacent the inner bearing race groove and at least one filler piece for sealing the opening.

Abstract: A rotary drill bit assembly comprising a trunnion and at least one rotary cutter mounted on the trunnion. The trunnion is supported by bearings including at least one radial bearing and at least one axial roller bearing. The axial bearing is comprised of conical rollers and one of the races for this bearing is disposed perpendicular to the axis of rotation of the rotary cutter and the complementary bearing race is conical. A guide rim is associated with one of the bearing races which guides the conical rollers in a radially outward direction.

Abstract: A rotary drilling bit with conically shaped rotary cutters which are supported in bearings on the drilling bit body by a plurality of bearings. At least one seal is provided in each rotary cutter for separating the bearing cavities of the bearings.

Abstract: In a longitudinally moveable antifriction bearing having an endless row of rolling elements, with a zone for loaded rolling elements, a return zone for unloaded rolling elements and reversing sections joining the respective loaded zones and return zones, flexurally elastic tongues are provided for directing the rolling elements onto and away from the loaded zone.

Abstract: A ball bearing adapted for axial movement on a shaft is comprised of a cage having guideways defining endless paths having axially extending portions for loaded and unloaded balls, and semicircular end portions. An outer sleeve surrounds the central portion of the bearing and defines races for balls in the endless paths. End rings on the axial ends of the bearing radially outwardly cover the semicircular guideway portions. The semicircular guideway portions have outwardly convex bottoms, and the end rings have concave recesses in their inner surfaces aligned with the semicircular guideways. The convex portions of the guideways and the concave portions of the recesses have common centers of curvature extending parallel to the bearing axis and displaced outwardly therefrom.

Abstract: A ball bearing for linear movement on a shaft has a cage with oval guideways, and an outer sleeve surrounding the case. The cage has axially extending raceways for guiding loaded balls, the ends of the raceways joining radially outwardly directed transitions. The transitions are weakened by transversely extending grooves or slots, to provide resilience. The raceways may be axially extending radially inwardly directed ridges having central axially extending grooves, and the transitions may have V-shaped recesses with their apices at the ends of the grooves, to define two-point contact with the balls in the transition area of the bearing. A split sleeve may surround the outer sleeve for additional support.

Abstract: A sliding seal ring for a drill bit comprising at least one cutter rotatably mounted on a journal forming part of the drill bit body. The seal ring is made of elastic metallic strip material and is of spiral configuration with the spirals in overlapping relation. The seal ring is mounted under axial tension between the pocket in an edge ring and the drill bit body and rotates with the cutter. In one form of the invention, the spirals are in abutting relation to provide a complete seal. In another form the spirals are open to define gaps permitting flow of flushing liquid to cool and lubricate the bearings supporting the cutter on the trunnion.

Abstract: Mechanism for axially shifting an anti-friction bearing mounted in a bore of a housing extension or the like. The mechanism comprises an annular member such as the outer ring of the bearing mounted in the bore which has at least one radially outwardly directed protrusion engaging through an axial slit in the housing extension. The extension has external screw threads adjacent the axial slits to receive locking nuts on either side of the protrusion to fix the annular member in a selected position relative to the extension.

Abstract: A vibration-absorbing antifriction bearing has inner and outer rings defining raceways for rolling elements distributed between the inner and outer rings. A resilient bushing surrounds the outer ring, and is held thereto by means of a sleeve having radially extending tabs engaging the sides of the outer ring and the bushing.