Abstract: A connection device for the torque transmitting connection of a connection component (2) to a hollow shaft (1). The connection component (2) comprises a penetrating recess (8) corresponding in shape to the outside cross section of the hollow shaft (1) for receiving one end of the hollow shaft (1), and the hollow shaft comprises a press-fit plug (9) in the area of the connection to the connection component (2) that forms an interference fit with the inner cross section of the hollow shaft (1). Preferably, the connection device is a press-fit plug (9) additionally designed as a bearing seat (10, 11) for at least one bearing (13, 14) assigned to the hollow shaft. The connection device allows durable and reliable transmission of high torques and it is possible to connect further components to the connection between the hollow shaft and the connection component. The connection device allows a reduction in construction space, mass and costs.

Abstract: A coupling device comprises a drive portion formed on a drive shaft and having a drive wall surface extending in the direction of a rotation axis; a driven portion formed on a driven shaft and having a driven wall surface extending in the direction of the rotation axis; a convex curved portion formed on one of the drive wall surface and the driven wall surface and extending along the rotation axis at a position spaced from the rotation axis as viewed in the direction of the rotation axis; and a concave curved portion having a smaller curvature than that of the convex curved portion and formed on the other of the drive wall surface and the driven wall surface to contact the convex curved portion and extending along the rotation axis at a position spaced from the rotation axis as viewed in the direction of the rotation axis.

Abstract: A rotary torque shaft including a tube made of a composite material having a plastic matrix and a metallic tubular insert fixedly mounted around a recessed longitudinal outer surface portion of the tube so as to link the tube mechanically to a functional mechanical assembly which is supported by the insert. The insert has in cross section a non-circular inner surface profile which is complementary in shape to a profile of the outer surface of the tube.

Abstract: A wheel hub/universal joint assembly having a wheel hub with a wheel flange for connecting a wheel and with a sleeve portion for receiving a wheel bearing. A constant velocity universal joint is provided with an outer joint part, an inner joint part and torque transmitting elements. The outer joint part has a first face toothing with first teeth and wherein the sleeve portion has a second face toothing with second teeth, wherein the two sets of face toothings engage one another for torque transmitting purposes. Clamping means is also provided for axially clamping the wheel hub to the outer joint part, the clamping means being axially supported on the wheel hub and on the outer joint part 22. At least one of the two face toothings is provided such that the first and second teeth, when clamping together the assembly, contact one another first on the radial outside and, as the clamping operation progresses, also on the radial inside.

Abstract: The invention relates to a connecting assembly which is used, more particularly for use in the driveline of a motor vehicle. The connecting assembly comprises a shaft journal 3 with an outer journal groove 34; a constant velocity universal joint 4 with an inner joint part 6 which, for the purpose of transmitting torque, is connected to the shaft journal 3 in a rotationally fixed way, wherein the inner joint part 6 comprises a sleeve-like portion 20 with an inner annular groove 35; a radially elastically widenable axial securing ring 30 which is provided for axially fixing the inner joint part 6 and which is positioned in the journal groove 34 of the shaft journal 3; and securing means 41 which are fixed to the sleeve-like portion 20 and prevent the axial securing ring 30 from being radially widened.

Abstract: A vehicle drive shaft includes: a first shaft portion, having a core shaft portion and a sleeve shaft portion coaxially arranged at one end, and a second shaft portion, having a spline hole portion and a second engagement protrusion at one end. A spline shaft portion and a first engagement protrusion are provided at distal ends of the core shaft portion and sleeve shaft portion. The spline hole portion is nonrotatably fixed to the spline shaft portion. The second engagement portion contacts the first engagement portion when a relative torsion allowable angle therebetween is larger than or equal to a gap. When the relative torsion allowable angle is smaller than the gap, torque is transmitted via the core shaft portion. When the relative torsion allowable angle is larger than or equal to the gap, torque is transmitted via not only the core shaft portion but also the sleeve shaft portion.

Abstract: A direct torque flow constant velocity joint connector includes an outer joint part, and inner joint part, a cage and a plurality of balls. The outer joint part includes outer ball tracks. The inner joint part includes inner ball tracks and a rotational axis, wherein the inner joint part has a face spline oriented about the rotational axis. The plurality of balls are provided in the cage and engage the inner and outer ball tracks of the respective inner and outer joint parts, thereby allowing torque transmission by way of the face splines. Also provided is a direct torque flow constant velocity joint connection.

Abstract: A direct torque flow constant velocity joint collet connector includes an outer joint part having outer ball tracks, an inner joint part having inner ball tracks, a cage and a plurality of balls. The inner joint part is articulately secured in a rotationally fast way to the outer joint part with the plurality of balls held in the cage. The inner joint part includes a front portion, an inner bore, a collet extension and at least one slot. The collet extension extends from the inner ball tracks to the front portion of the inner joint part. The slot extends into the collet extension from the front portion between an outer surface and the inner bore of the inner joint part, wherein the collet extension of the inner joint part is compressible for selective attachment to a journal shaft of a supplied drive unit.

Abstract: A telescopable steering spindle arrangement is provided that includes, but is not limited to a steering spindle near the steering wheel, an intermediate spindle mounted rotationally fixedly and telescopably therein. The steering spindle near the steering wheel and the intermediate spindle are connected axially frictionally to one another, as well as a steering spindle near the steering gear. The intermediate spindle is mounted rotationally fixedly and telescopably in the steering spindle near the steering gear, and the intermediate spindle and the steering spindle near the steering gear are connected axially positively to one another.

Abstract: Disclosed are degassers, couplings, impeller shafts and impellers for use in molten metal. One such coupling transfers gas into an impeller shaft, the coupling having a smooth, tapered internal surface to align with a corresponding surface on the impeller shaft and help prevent gas leakage and to assist in preventing damage to the impeller shaft. Improved impellers for shearing and mixing gas are also disclosed, as is a degasser including one or more of these components.

Abstract: A shaft may include a first coupling member, a second coupling member, a filament wound shaft member, and a pilot shaft. The first coupling member may couple the shaft to one of a rotationally driving and a rotationally driven component. The second coupling member may be axially spaced from the first coupling member and may couple the shaft to the other of the rotationally driving and the rotationally driven component. The filament wound shaft member may have a first end fixed to the first coupling member, a second end fixed to the second coupling member, and a body portion extending therebetween. The pilot shaft may be disposed radially within the filament wound shaft member and may extend from the first coupling member to the second coupling member.

Abstract: The coupling apparatus includes a gear shaft, including a sun gear at one shaft end for connecting to a reduction gear box. The sun gear drives a planetary gear train inside the gearbox. The coupling apparatus has outer splines on the gear shaft other end that mesh with inner splines of a ring gear connected to a coupling flange member by bolts and nuts. The flange member transmits high torque from a high speed turbine shaft to the gear shaft through the intermeshed splines. The teeth of the inner and outer splines are kept lubricated from a stationary spray source on the turbine side via an oil catcher mounted on the flange member opposed to the ring gear. The flow of lubricating oil during operation is from the oil catcher, through holes in the flange member, and to the intermeshed splines. Both oil catcher and ring gear are centered by a rim positioned on the flange member.

Abstract: A dual type constant velocity universal joint solves the problems of greasing work efficiency and lubricating ability of a double Cardan Joint. The dual type constant velocity universal joint includes two constant velocity universal joints. Each constant velocity universal joint includes: a cylindrical outer ring in which a plurality of guiding grooves that extend in an axial direction are formed on a spherical inner circumferential surface; an inner ring in which a plurality of guiding grooves that extend in an axial direction are formed on a spherical outer circumferential surface; balls for torque transmission each of which is disposed in each of a plurality of ball tracks which are through coordination between the guiding grooves of the outer ring and the guiding grooves of the inner ring; and a cage 5 for holding the balls.

Abstract: A shaft mounting structure of a constant velocity joint is capable of ensuring sufficient strength of a fitting portion between an inner ring and a shaft. In the shaft mounting structure, a groove is formed on the shaft middle side compared to the position of a male spline of a shaft and the outside diameter of a bottom portion of the groove is set at a value larger than the root diameter of the male spline.

Abstract: A coupling mechanism for a scroll compressor comprises an orbiting scroll disk, a retention bolt, a bearing shaft and a retention nut. The orbiting scroll disk includes a first face configured to engage a stationary scroll disk to compress a working fluid, and a second face having a hub. The retention bolt is inserted into the hub. The bearing shaft is fit onto the retention bolt and includes a bearing surface for engaging a drive bushing of a drive shaft. The retention nut is threaded onto the retention bolt to retain connection of the bearing shaft with the orbiting scroll disk.

Abstract: A connecting arrangement between a shaft journal (2), which is mounted so as to be axially fixed with respect to a unit, and a joint part (10) which can be pivotably attached to the shaft journal in a rotationally fixed manner. A shaft nut (5) having an internal thread (6) which can be screwed onto an external thread (4) of the shaft journal, is provided with an additional external thread (8) onto which a further nut (12) can be screwed via a counter-thread (21) to produce an axially acting interlocking connection (13) between the further nut (12) and the joint part (10).

Abstract: A torque transmission device such as a fixed constant velocity ball joint constructed as an opposed track joint and a process for producing such a device, in which the curvatures bases of the tracks of the joint deviate in their axial course from the curvatures of the ball contact lines. The process is characterized in that prior to the formation of a longitudinal profile of the joint component, the component is brought to an increased hardness by a hardening process and a diffusion layer is partially or completely removed in the region of the longitudinal profile.

Abstract: A fiber reinforced composite shaft bearing a metallic flanged end coupling attached to the outside diameter through a concentric cylindrical torsional joint is provided. The composite shaft is press fitted into a flanged metallic end coupling including a multiplicity of teeth running parallel to the tube axis which cut longitudinal channels into the outside diameter of the composite shaft wall during the press fit process. Pairs of inverted troughs adjacent to and running parallel to the cutting teeth in the serrated region allow space for the redistribution of the composite material and debris formed during the press fitting process. This combined action forms a mechanical interface capable of supporting torsional and axial stresses. A structural adhesive may be applied to the joint region to form a secondary joint. In this case the composite formed between the cutting debris and the adhesive fills the trough channels.

Abstract: A groove profile for a positive hub-shaft connection has a hub having a plurality of grooves with an essentially quadrilateral groove cross section and a shaft having a plurality of grooves with an essentially quadrilateral groove cross section. Additionally, the groove profile has at least one rib radially projecting from one of the grooves of the hub or shaft towards one of the grooves of the other of the hub or shaft.

Abstract: A driveline yoke is integrally formed as one-piece with a brake rotor. At least one caliper includes a friction element that selectively engages the brake rotor. In one example, the yoke is coupled to a front output of a transfer case and the caliper is mounted to a housing of the transfer case with the friction element engaging a braking surface on the brake rotor in response to a parking brake request.

Abstract: A connecting arrangement between a shaft journal (2), which is mounted so as to be axially fixed with respect to a unit, and a joint part (10) which can be pivotably attached to the shaft journal in a rotationally fixed manner. A shaft nut (5) having an internal thread (6) which can be screwed onto an external thread (4) of the shaft journal, is provided with an additional external thread (8) onto which a further nut (12) can be screwed via a counter-thread (21) to produce an axially acting interlocking connection (13) between the further nut (12) and the joint part (10).

Abstract: A stub shaft of a main rotor shaft of a generator has its flange or shoulder removed from its outer portion so in the event of a bending failure of the stub shaft the resulting axial load of the stub shaft is not transmitted to the main rotor shaft. Instead of a retention plug adjacent the distal end of the inside portion of the stub shaft, a knock out plug is lightly press-fit into the main rotor shaft. In the event of a failure, the outside portion of the stub shaft enters the main rotor shaft without applying an axial load onto the main rotor shaft, moves axially and displaces the knock-out plug without exiting the main rotor shaft.

Abstract: A constant velocity joint has an outer bell telescopically coupled for rotation with a rotatable hub of a hub bearing unit so as to provide torque transmission thereto. The joint bell is releasably axially coupled to a rotatable member of the hub bearing unit by an annular connector. The connector includes a radially inwardly extending annular flange axially clamped against a rigid annular part fixed to or integral with the hub, and a radially outer portion extending axially around a cylindrical surface of the joint bell. This outer portion has a resiliently radially expansible section with one or more radially inwardly extending protrusions providing a snap connection with a relief or recess formed on the cylindrical outer surface of the joint.

Abstract: A system is provided for sorting solid materials, that system comprising: a plurality of shafts disposed upon bearings, the bearings being fixed on an inclined slope; each shaft of the plurality of shafts being configured with a plurality of sorting discs, the sorting discs being configured with a receiving cavity and material contact fingers; spacers configured to be received by the receiving cavity of the discs and to maintain a desired space between the discs; and the spacers being configured with a hexagonal or pentagonal cross section.

Abstract: The present invention relates to a device for securing a shaft to collar connection (16) of two shafts (12, 14), in particular for securing a PTO shaft stub (14) of a PTO shaft of a tractor. The device comprises a locking element (40) preventing a disconnection of an established shaft to collar connection (16) between the two shafts (12, 14) in axial direction. One of the two shafts (12) comprises a collar (15) with a positive engagement element (38) for a locking engagement with the other shaft (14). The other shaft (14) comprises a positive engagement (22) for a locking engagement with the shaft (12) comprising the collar (15). The locking element (40) is basically ring-shaped and arranged at the first of the two shafts (12). In order to enable an easier handling of the axial locking of the shaft to collar connection (16), it is suggested, that the locking element comprises a toothing (44), which is basically complementarily formed to the toothing (22) of the second of the two shafts (14).

Abstract: A cylindrical shaft is provided of which a pair of ends are formed in a cylindrical shape by a press work so as to form a joining portion therebetween. Here, the joining portion includes: a central linear section which is provided on a center portion in an axis direction of the cylindrical shaft and is formed in a linear shape to be parallel to the axis direction of the cylindrical shaft; and a folded section which includes a plurality of intersections which are provided on both ends of the center portion and are disposed so as to be extended in a direction perpendicular to the axis direction of the cylindrical shaft, and a connection linear section which connects ends of a pair of the adjacent intersections. In addition, the connection linear section is constituted by a first linear section which connects ends on one side of the pair of the intersections and a second linear section which connects ends on the other side of the pair of the intersections and formed shorter than the first linear section.

Abstract: A cylindrical shaft is provided of which a pair of ends are formed in a cylindrical shape by a press work so as to form a joining portion therebetween. Here, the joining portion includes: a central linear section which is provided on a center portion in an axis direction of the cylindrical shaft and is formed in a linear shape to be parallel to the axis direction of the cylindrical shaft; and a folded section which includes a plurality of intersections which are provided on both ends of the center portion and are disposed so as to be extended in a direction perpendicular to the axis direction of the cylindrical shaft, and a connection linear section which connects ends of a pair of the adjacent intersections.

Abstract: A cylindrical shaft which is formed in a cylindrical shape by pressing process in a state in which a pair of ends are opposite to each other is disclosed. A joint is formed between the pair of ends, and includes a plurality of intersection portions extending in a direction intersecting with an axial direction of the cylindrical shaft, a first straight portion connecting the ends of one side each of the pair of adjacent intersection portions, and a second straight portion connecting the ends of the other sides of the pair of adjacent intersection portions and being shorter than the first straight portion. A distance between the pair of ends at the first straight portion is shorter than a distance between the pair of ends at the second straight portion.

Abstract: A shaft includes endpieces welded to a tube shaft. The endpieces include a central axis; a first portion having a first end that is a connection end; and a second portion that is tubular and that is adapted to be welded to the tube. The second axial portion defines a second free end and has an outer surface, an inner surface, and an end-wall surface defined by an end-wall generatrix. The inner surface is of a shape that flares towards the second free end and is defined by an inner generatrix different from the end-wall generatrix. The endpiece is applicable to transmission shafts in motor vehicles.

Abstract: A propeller shaft assembly includes a substantially cylindrical hollow propeller shaft, a stub shaft and a constant velocity joint having inner race and an outer race drivingly interconnected by a plurality of balls. The stub shaft has a first end fixed to the propeller shaft and a second end drivingly coupled to the inner race. The second end includes a portion positioned adjacent to the inner race that defines an outer diameter greater than an outer diameter defined by the interface between the inner race and the plurality of balls.

Abstract: A broom assembly includes a head structure and a rod structure. The head structure includes a base having a coupling face formed with a reception chamber and an opening for access into the reception chamber, and a plurality of resilient ribs provided at the periphery confining the opening and extending inwardly and radially toward a center axis of the opening. The rod structure includes a coupling member provided partially, rotatably and detachably within the reception chamber in the coupling face of the base. When the coupling member is detachably received within the reception chamber, the coupling member biases against and engages the resilient ribs so as to be prevented untimely disengaging from the base.

Abstract: A shaft for a gas turbine engine is provided that includes a first shaft section, a second shaft section, a first flexible linkage, and a second flexible linkage. The first shaft section extends between a forward axial end and an aft axial end along a first axial centerline. The second shaft section extends between a forward axial end and an aft axial end along a second axial centerline. The first flexible linkage includes a bridge section connected between a first diaphragm and a second diaphragm. The first diaphragm is connected to the aft axial end of the first shaft section. The second diaphragm is connected to the forward axial end of the second shaft section. The second flexible linkage includes a diaphragm and a hub. The second flexible linkage diaphragm cantilevers radially outwardly from an inner radial end to an outer radial end, and is connected to the aft axial end of the second shaft section.

Abstract: The present invention provides a connection joint, which is configured to be efficiently fastened to each end of a composite drive shaft having respective power transmission parts in opposite ends thereof. Further, the present invention also provides a composite drive shaft assembly, which has an integrated structure realized by easily fastening respective connection joints in opposite ends of the composite drive shaft, most of which, except for the opposite ends functioning as power transmission parts, has a tubular shape with a circular cross-section, similar to that of a general shaft, so that the composite drive shaft assembly can efficiently transmit high torque.

Abstract: A fiber reinforced composite shaft bearing a metallic flanged end coupling (Fl) attached to the outside diameter through a concentric cylindrical torsional joint, comprising: a) a cylindrical end region comprising a wedge shaped inner layer of fiber (Hp) composite; b) a layer of outer helical composite plies (He) forming the shaft and extending over the wedge shaped inner layer, wherein the layer of outer helical plies has a tapered end part overlying wedge shaped inner layer to form the cylindrical end portion, wherein all helical plies of fibre layers are exposed on an outer surface; and c) a metallic flanged end coupling attached to the outer surface of the cylindrical end region through a primary mechanically interface (Sp) which may be splined. The joint may be strengthened by internally reinforcing the main shaft with an interference fit tubular plug (Pg) and protected from environmental degradation by inboard secondary adhesive bond (Ad).

Abstract: A conveyor coupler system for efficiently increasing the longevity and productivity of the conveyor. The conveyor coupler system generally includes a coupler including a first portion and a second portion, wherein the first portion extends from the second portion. The first portion includes a first connecting portion, wherein the first connecting portion extends within the first portion and includes at least one slot. The second portion includes a second connecting portion extending within the second portion and including a plurality of ridge members. The first connecting portion connects to a first planetary gear structure of a conveyor unit and the second connecting portion connects to a second planetary gear structure of the conveyor unit.

Abstract: A fuel pump (10) supplying fuel to an internal combustion engine includes an electric motor (14), a shaft (16) driven by the motor, and a pump assembly (18) including a pumping element (20) mounted on the shaft. A fuel pump improvement includes the shaft being a multi-sided shaft with the pumping element having a central opening (22) through which the shaft extends. This opening is a contoured opening having a plurality of sides each of which is in contact with a side (22a-22c) of the shaft to distribute wear which occurs between the shaft and the pumping element. This construction prolongs the operating life of the pump. In a roller vane type pump having N vanes, the motor shaft has a number of sides S determined by the formula S=N±1, and N>3.

Abstract: When an inner ring portion of a tripod is brought into contact with a protruding portion, the inner ring portion is brought into contact with the protruding portion because an outer diameter of the protruding portion is smaller than a diameter of a tilted outer end portion of the inner ring portion. Since the inner ring portion is tilted with respect to an axial direction, the inner ring portion is brought into contact with the protruding portion by a point (a line) not by a surface. If the inner ring portion is brought into contact with the protruding portion by the point, a stress concentration is generated at the point with which the protruding portion is brought into contact, a small impact force overcomes a breaking load of the protruding portion in the stress concentration portion, and the stress concentration portion is easily broken (plastically deformed).

Abstract: A drivetrain that includes a drivetrain component, a flange structure, a yoke flange, a female guide portion and a male guide portion. The drivetrain component has a shaft that is rotatable about an axis. The flange structure is fixedly but removably coupled to the shaft. The female guide portion is directly coupled to one of the shaft and the yoke flange. The male guide portion is directly coupled to the other one of the shaft and the yoke flange. The male guide portion engages the female guide portion to thereby align the yoke flange to the axis. The yoke flange and the flange structure are fixedly but removably coupled to one another.

Abstract: A driveshaft with a hollow shaft, a pair of caps and a universal joint. The hollow shaft is rotatable about an axis and has an annular wall member that defines an outer surface, an inner surface and a pair of opposite ends. At least one of the outer surface and the inner surface includes a plurality of longitudinally extending splines. The caps are fixedly coupled to the opposite ends of the hollow shaft to at least substantially close the opposite ends of the hollow shaft. The universal joint is coupled to one of the caps. The splines extend the length of the hollow shaft.

Abstract: A device and method for steering mechanism breakaway are disclosed. In order to avoid harmful steering column intrusion into the passenger compartment of a vehicle in the event of vehicle collision, an intermediate link between the steering column and the steering gearbox is disposed. The intermediate link comprises of an inner shaft and an outer tube which are connected via longitudinal matching splines to facilitate rotational engagement. In normal operation the inner shaft may longitudinally move inside the tube. The outer tube has openings along it and detachment means at one end to facilitate detachment of the shaft from the tube through the openings when the shaft moves longitudinally into the tube beyond a certain point due to movement of the steering gearbox towards the steering column during a collision.

Abstract: A method for producing a joint connection for torque-transmitting connection of a component (1) provided with spur gear teeth (13) with a constant velocity joint (2) provided with corresponding spur gear teeth (11). The spur gear teeth can be brought into interengagement by applying an axial engaging force and have flanks (25) that contact each other as functional surfaces. The invention also relates to a joint connection of the aforementioned type.

Abstract: A combination for use in supporting and rotatably driving a mass is disclosed. The combination may have a power source. The combination may also have a flywheel, which may be configured to connect with and rotatably drive the mass. The flywheel may have a flywheel end, which may have a plurality of flywheel protrusions. Additionally, the combination may have a bearing, which may be situated at least partially within the power source. The bearing may be configured to support and at least partially house the flywheel. In addition, the combination may have a crankshaft, which may be shaped to connect with and rotatably drive the flywheel. The crankshaft may have a crankshaft end, which may have a plurality of crankshaft protrusions. The plurality of crankshaft protrusions may be shaped to mesh with the plurality of flywheel protrusions.

Abstract: A spindle drive coupling releasably connects a cordless electric motor to an auger assembly used to drill holes in ice on a body of water. The coupling has a sleeve supporting a split head onto the drive shaft of the motor with a clamp assembly.

Abstract: A constant velocity joint having an inner hub and an outer hub (1) in which races or tracks (3) associated with one another in pairs are provided and with balls received in respective pairs of races or tracks for transmitting torque. The constant velocity joint is further provided with at least one joint connector (2) which, when the joint is assembled, is connected in a rotationally fixed manner to one of the hubs (1) by mating profile members (6, 7) in order to transmit torque.

Abstract: A direct torque flow constant velocity joint connection interface includes a drive unit, a direct torque flow constant velocity joint connector and a sealant. The drive unit includes a shaft having a second interface surface. The direct torque flow constant velocity joint connector includes a unitary inner joint part having a first interface surface, where the first interface surface is connected to the second interface surface of the drive unit. The sealant provides filling between the first and second interface surfaces. Also provided is a direct torque flow constant velocity joint connector having sealant on an interface portion of an inner joint part and a method thereof.

Abstract: A shaft coupling arrangement and a corresponding method for coupling shafts are disclosed herein. The shaft coupling arrangement includes an input shaft operable to rotate about a first axis. The shaft coupling arrangement also includes an output shaft operable to rotate about a second axis. The shaft coupling arrangement also includes a gearing arrangement operable to engage the input and output shafts together for rotation in the same angular direction at different angular speeds. In one embodiment of the invention, the gearing arrangement includes a plurality of nested bevel gears. In another embodiment of the invention, the gearing arrangement can include a single layshaft.

Abstract: An inner ring is configured to simultaneously ensure the strength thereof and the dimensional accuracy of a female spline portion of a shaft hole thereof in the case where the female spline portion is subjected to heat treatment. Also it is configured to suppress the backlash of spline fit with a shaft. The inner ring is mounted in a constant velocity universal joint for transmitting torque while the inner ring is allowed to be angularly displaced relative to an outer ring and is spline-fitted to a shaft inserted into a shaft hole formed through the inner ring. The inner ring has a hardened layer by means of heat treatment which is formed only in an axial central portion of the shaft hole, but is not formed in remaining inner diameter surface other than the axial central portion.

Abstract: A winch is provided for taking or winding ropes, cables, and the like. The winch has a drum, a lower crown, a rope groove and an upper crown having a socket which has a fluted cavity. The fluted cavity is configured to cooperate with a pin of a winch handle, which when turned rotates the drum. In an embodiment, the fluted cavity has a groove having a canted coil spring positioned therein. The pin on the winch handle has a groove placed to correspond with the depth of the groove when placed into the socket. The combination allows the winch handle to latch to the winch and to resist unintended separation between the two.

Abstract: A drive coupling hub (60) includes a body (120) and lugs (126) that extend radially from the body (120) and are engageable with a primemover (54) of a primary power source (14). The lugs (126) have a fastening lug (80) that includes a radially extending bore (82). A bearing (88) is set within the bore (82). A setscrew (90) extends within the bore (82) and applies pressure on the bearing (88) to engage the drive hub to a shaft (58) of a secondary power source (16).

Abstract: Grooves as ball rolling grooves are formed in a side peripheral wall of a preparatory formed body that is to be an inner member. A recess opened so as to be continuous to curved bottom sections of the grooves, which face a through-hole, is formed in one end surface of the preparatory formed body. In carburizing, carburizing gas entering into space between the through-hole and a support shaft member flows through the recess after coming into contact with inner teeth, and is then discharged to the outside of the preparatory formed body via the curved bottom sections of the grooves. On the contrary, the carburizing gas having been in contact with the curved bottom sections of the grooves flows through the recess to come to be in contact with the inner teeth and is then discharged through the space.