Abstract: A plural ring bearing is comprised of at least outer and inner radially superimposed rolling bearings and has an intermediate ring common to the inner and outer bearings. The outer bearing comprises an inclined roller bearing with two rows of cylindrical rollers inclined with respect to one another and to the axis of the plural ring bearing. The inner bearing may have two rows of cylindrical or tapered rollers, and may additionally include a crossed roller bearing.

Abstract: In a device for bringing about rotational braking in a screw and nut device incorporating a nut, which is rotatable and displaceable relative to a threaded bar, and a helical spring enclosing the bar, which spring at braking is clamped against the bar, for effecting a big braking moment and a small wear in the thread of the bar, there is arranged a helical element with a loose fit in the thread groove of the bar, which element extends radially outside the thread flank tip. The helical spring is futhermore arranged with radial pretension of the thread flank tip between the winding turns of the helical element.

Abstract: A device for securing a first machine element to a second machine element comprising a clamping sleeve disposed between said machine elements having first and second opposed clamping surfaces forming opposing angles .alpha. and .beta. with the axis of said sleeve, one of the machine elements having complementary clamping surfaces confronting and engaging said first and second clamping surfaces, the angles (.alpha., .beta.) formed between the sleeve axis and said opposed clamping surfaces being smaller than the friction angle in each associated clamping contact whereby relative rotation of said sleeve and one of the machine elements produces a clamping action over substantially the entire length of said sleeve.

Abstract: A rolling bearing assembly for mounting a shaft or similar member which has a housing encircling the shaft with at least one rolling bearing installed between two securing rings. The assembly consists of an outer and an inner race and at least one row of rolling elements. It has annular chambers in the housing on either side of the bearing, closed off on their outer edges by annular seals which are attached to the housing and in contact with the bearing shaft. It has at least one hole opening into one of the annular chambers throught the wall of the housing, capable of being placed in communication on the outside with a feeding device for introducing a lubricant into the housing. There are two channels (17, 17') extending through the wall of the housing (1) and located diametrally opposed to each other, each opening into the closed annular chamber (8), and in that a trough-like receptacle (18) is accommodated in said channels, in which an excess of lubricant can be collected.

Abstract: A seal for sealing the space between inner and outer ring members comprising a sealing ring and a retaining element engaging in a recess in the outer ring with axial pretension and means mounting the sealing ring and retaining member in a manner for preventing relative movement in the radial direction between the sealing ring and the retaining member.

Abstract: The non-rotating bearing ring of a pivot mounted roller is mounted to be radially movable on an undulated spring and axially held between two machine parts. Friction is produced by relative radial movement between the end surface of the bearing ring and the radially extending surfaces of the machine parts, to result in damping by dissipation of energy. The rubbing surfaces can be coated with friction layer or a solid sliding washer can be employed instead of a coated surface.

Abstract: A storage station for receiving workpieces from a loading conveyor belt and for sending workpieces to an unloading conveyor belt. The station has a plurality of spaced platforms mounted on a common rotatable shaft, and apparatus for adjusting the vertical position relative to the rotary platforms of the ends of the loading and unloading conveyor belts which are proximal to the station. A first guide is provided for each platform for directing workpieces riding on the outer radial region of the respective platform toward the inner radial region of that platform when the first guide is in a first position.

Abstract: An improved swiveling wheel assembly comprising a brake member including a toggle lever mechanism comprising a first and a second element rotatably connected together. The first element is rotatably fastened to the upper end of a rod-shaped locking member and the second element is rotatably connected to a vertical fastening member. A coupling means is also included and used for coupling one of the first and second elements to a cam member whereby, when the cam member rotates from a first or second position into a third position, the toggle lever mechanism is brought from an unextended position into essentially an extended position, wherein a line drawn between the axes of rotation of the toggle lever mechanism is essentially aligned with the longitudinal axis of the locking member and the locking member is displaced downward against a spring member with respect to the first and second positions whereby a lower edge of a locking disk is pressed against the wheel.

Abstract: A seal for a rolling bearing having an inner bearing ring, an outer bearing ring, and rolling elements rolling in races therebetween, wherein a cover is affixed to the outer bearing ring and carries a sealing lip engaging the side surface of a groove adjacent an end of the inner bearing ring. A shoulder at the end of the inner bearing ring defines a gap seal with the cover. The cover extends substantially normal to the axis of the bearing and the sealing lip is either slightly conically inclined, or defines an annular outwardly extending groove.

Abstract: A method of continuously overheating large volumes of gas wherein a gas flow is heated in a cylindrical pipe by means of an electric arc generated between two electrodes arranged in the pipe and axially spaced from each other, the gas being introduced in the tube at a speed of 15-100 m/s and supplied with a quantity of energy amounting to 0.1-0.5 kWh/m.sup.3.

Abstract: A seal for bearing bushing with a sealing ring in a bore of the bearing bushing having a sealing surface which rests against a cylindrical surface of a machine part supported in the bearing bushing. An auxiliary seal is located between the open end of the bearing bushing and a shoulder of the machine part. The auxiliary seal has a ring-shaped collar extending in the axial direction, by which it is connected to the bearing bushing and at least one sealing lip bearing against the bearing bushing. The ring-shaped collar is pretensioned with radial pretension. The auxiliary seal has axially oriented projections located in a ring-shaped recess on the side facing the bearing bushing and each projection is situated over a portion of its length on a tongue of the ring-shaped collar.

Abstract: A hydraulically actuated device for moving machine parts or the like, especially a device for pressing or fitting bearings into place in the forks of universal joints, consisting of a linear-action work cylinder, a pressure generator with a constant pressure, a supply tank with pressure medium, a main valve which controls the flow of pressure medium to provide the required amount in the work chamber of the work cylinder, a main line connecting these parts of the device, and a measurement system, which controls the main valve as a function of a measurement value, especially the center offset of the joint fork with respect to a reference axis or the like, characterized in that, between the work chamber of the work cylinder and the supply tank, a return line is provided, which has a throttle device which sharply reduces the return flow of pressure medium by comparison to the flow of medium into the work chamber.

Abstract: A cage for a ball bearing, especially for an inclined ball bearing, is comprised of two side rings connected together by webs, with one of the side rings being outside of the pitch circle and the other side ring being inside of the pitch circle. Circumferentially resilient axially extending projections are provided extending from one of the side rings toward the other, radially inwardly or outwardly of the pitch circle, and recesses are formed by the webs and projections in the regions of minimum spacing between the balls.

Abstract: The invention relates to a driving wheel for car engines or the like, incorporating a gear wheel, which is intended to cooperate with a cogged belt, and a pulley attached to one side of the gear wheel and arrested to this. The gear wheel molded from a plastic or similar material having a coefficient of thermal expansion higher than steel's coefficient of thermal expansion and by having a helix of steel or another material with a coefficient of thermal expansion similar to or identical with that of steel embedded in the gear of the wheel radially inside the cogs, whereby the helix has such strength and dimension that it determines the thermal expansion properties of the gear rim.

Abstract: The invention relates to a gear wheel consisting of plastic material or a similar material having a coefficient of thermal expansion higher than that of steel. The gear wheel further includes a helix of steel or another material having a coefficient of thermal expansion similar to or identical with that of steel embedded in the gear rim of the wheel radially inside the teeth, whereby the helix has such a strength and dimension that it determines the coefficient of thermal expansion of the gear rim.

Abstract: A device for supplying a lubricant to a mechanism, particularly a rolling bearing, comprising a container for holding a quantity of lubricant and having at its lower end a discharge channel for the lubricant, and expulsion means disposed within the container for expelling the lubricant through the discharge channel. The expulsion means includes a displacement pump having a rotary part mounted in the discharge channel, a shaft coupled to the rotary part, shaft drive means and intermittent means coupled to the shaft drive for intermittently permitting the shaft drive means to be coupled to the shaft so as to rotate said shaft.

Abstract: An improved pivot ring assembly which has a first and second annular member, one of which is mounted within the other, the first and second annular members having a first and second spaced apart race, respectively, that face one another, and rolling elements positioned to roll on the races between the first and second annular members. The improvement comprises an aperture being provided in the first annular member for receiving an ultrasonic probe, the aperture having a hole therein which is directed toward a critical area of the assembly. This critical area includes an edge of the race of the second annular member. Furthermore, the races lie in planes perpendicular to the centerline of the annular members, and the first annular member is mounted within the second annular member.

Abstract: The double-row bearing assembly with axially split inner and outer barrel rings has at least one pair of corresponding barrel rings and is connected by means of a fastening member in a form-locking manner. At least one spacer member is provided between a pair of corresponding barrel rings which are prevented from moving axially outward by the form-locking connection provided by the rolling elements. The spacer is provided with projections pointing in both axial directions, which cooperate with the associated barrel rings to provide a positive form-locking connection in the radial direction.

Abstract: A first member, such as a clutch release bearing can be releasably connected to a second member, such as a cup spring in a coupling device, in that the member has a cyclindrical portion, which is insertable in a hole in the second member, the hole being surrounded by radially inwardly directed tongues. The portion is provided with radially outwardly directed projections forming a rim and being of a number and a circumferential extension corresponding to the interspaces between the tongues and which can be displayed through these interspaces. Catch fingers are arranged to be inserted between the tongues and the projections respectively after assembly for preventing unintentional disconnection of the connection. The fingers may be removed from the lock position at dismounting.

Abstract: A locking mechanism for connecting machine parts such as bearing rings on a support. The support includes at least one radially elastic element having a seating surface for the ring which is deflectable radially inwardly to permit assembly of the ring on the support surface and at least one locking element formed integrally with the support and acuatable between a release position wherein the snapping element can be flexed to facilitate assembly and removal of a ring on the seating surface and a locked position wherein the ring is supported in a form locking manner in the seating surface.