摘要:
A hydraulically operating clutch release includes a housing having a pressure chamber sealed by a roll membrane. A clutch bearing is axially displaceable in the housing. A support body abuts the roll membrane in the chamber, and resiliently engages the bottom surface of the pressure chamber in the axial direction, to prevent damage to the roll membrane.
摘要:
A tensioning mechanism for drive belts which consists of a support arm, a rotating tensioning roll mounted on the arm, and a pivot bearing on the support arm a certain distance away from the tensioning roll. The tensioning mechanism is attached together with a mounting plate by a fastener to a machine block. A spring urges the tensioning roll away from the mounting plate and toward the drive belt. In the area of the pivot bearing, the mounting plate has, in the axial direction of the bearing, a fork-shaped cross section with shank sections which support the pivot bearing on both sides, radially and axially, by way of the fastener.
摘要:
A system for preloading the bearing of a cooling water pump for motor vehicles. The pump comprises a shaft and an impeller mounted on one end of the shaft and, an outer bearing ring surrounding the shaft. An axial face seal is mounted on one projecting end of the shaft operable bearing ring and to tension spring-loaded sliding rings with a predetermined contact pressure against each other. The outer axial end face of the axial face seal is aligned with the axial end face of the shaft to simplify and insert the same preloading of the bearing for assemblies put together by mass production techniques.
摘要:
A rolling bearing unit, in particular a play-adjustable bearing arrangement, comprising a bearing shaft, a housing having a bore, and angular contact ball bearings having outer rings arranged in the housing bore and inner rings arranged on the bearing shaft. The shaft is provided with three annular grooves, a threaded portion, and an axial groove along the threaded portion. A locking ring is arranged in the first annular groove, a first cover is arranged on the shaft and abuts the locking ring, and the inner ring of the first bearing abuts the cover. The adjustment of the bearing play is achieved by adjustably arranging a second cover on the threaded portion of the shaft to abut the inner ring of the other ball bearing. The securing of the second cover against rotation relative to the shaft is achieved by deforming or indenting the boss of the cover to engage the axial groove. The outer rings of the bearings are L-shaped and a pair of slotted rings are arranged in the second and third annular grooves of the shaft, between and near the flanges. The slotted rings prevent the balls of the bearings from falling out during shipment and before assembly in a housing.
摘要:
A tension roller for enabling adjustment of the tightness of a driving belt, comprising a solid support and a bearing press-fit thereon. The solid support has an axially extending mounting bore eccentrically arranged therein and a seating surface formed circumferentially thereon. A plurality of balanced bores are circumferentially distributed in the support in order to obtain a uniform radial elasticity at the seating surface. The balance bores may have a diameter equal to or less than the diameter of the mounting bore. In the latter case, the shortest distance between the balance bore surfaces and the seating surface is equal to the shortest distance between the mounting bore surface and the seating surface. The resultant uniformity of the radial elasticity prevents deformation of the bearing.
摘要:
A bearing arrangement for a driven wheel of a vehicle, comprised of a rolling bearing whose outer ring is provided with a flange for affixing the assembly to a vehicle frame or the like. A wheel hub is provided with a flange for supporting a wheel. A drive joint is provided for driving the hub wheel, and a pin or the like is provided for holding the parts together. The axially engaging end surfaces of the wheel hub and drive joint are provided with engaging teeth for the transmission of torques. In order to interconnect the parts precisely to one another for centering and to ensure their reliable interconnection, the inner ring of the rolling bearing is mounted on the outer surface of the wheel hub and/or the drive joint, and end surfaces of the inner ring abut first shoulder surfaces of the wheel hub and the drive joint. The wheel hub and the drive joint directly abut one another at the end surfaces with are provided with substantially axially extending and intermeshing projections. The pin extends through the wheel hub and drive joint and engages second shoulder surfaces of both parts with radial projections.
摘要:
A tensioning arrangement for a drive belt includes a support, a tension roller rotatably mounted on one end of the support, a swivel bearing arranged on the support at a distance from the tension roller, a swivel-damping element in the form of a linear-acting frictional damper having a master piston and a slave piston arranged in and separately frictionally engaging a cylinder, a spring arranged concentrically around the cylinder and coupled to the master piston, and a spring arranged inside the cylinder and coupled to the slave piston. The displacement of the master piston in one direction is opposed by the frictional forces separately acting on both pistons, whereas the displacement of the master piston in the other direction is opposed by the frictional forces acting on only the master piston.
摘要:
A rotation-damping rolling bearing is provided with a damping element between a cover or sealing disk and a row of rolling elements. The damping element can be integrally formed with a cover disk, vulcanized on the support body of the sealing disk, integrally formed with the support, or connected to the sealing disk separate from the support. The sealing disk is provided with a flexible sealing lip. The damping element contacts the rolling bodies with axial prestress.
摘要:
A bearing unit for a rotating component, such as a toothed gear or guide pulley, with an integrated pump consists of a housing with a pump chamber defined therein, a pump rotor installed in the pump chamber, a support pin having an end supported in the housing, and a bearing ring rotatably mounted on the support pin. The bearing unit is mountable on a support surface of an associated machine element, such as an engine block by means of a flange on the housing. The pump rotor and the rotating component are securely mounted on the outer surface of the bearing ring in mutual abutting relationship. The pump rotor is disposed between the housing flange and a web portion of the rotating component. The rim portion of the rotating component circumscribes the pump rotor. A sliding sealing ring is provided between the housing or housing ring and the rotating component.
摘要:
A sealing arrangement for two machine elements concentrically arranged with respect to one another for relative rotation, especially for the inner and outer bearing rings of a rolling bearing, consists of a holding ring circumferentially arranged spring fingers radially snappable in an annular groove in the outer or inner ring, and a sealing seal of an elastically compressible plastic connected thereto, the holding ring being adapted to be axially inserted between the inner and outer bearing rings. In order to maintain a precise centering of the seal connected to the holding ring, between the outer and inner ring, the holding ring has spring fingers on its axially outer end and a centering section on its axially inner end. The centering section is radially supported in the bore of the outer ring or on the outer surface of the inner ring. The seal has a mounting section which is axially clamped between the centering section and a radially extending inner shoulder of the outer or inner ring, adjacent the bore of the outer ring or the outer surface of the inner ring.