A flexible, cantilevered, gear wheel support, comprising a flexible pin mounted at one end in a rotating carrier and carrying at the other end a gear wheel the axis of which, when the pin flexes, remains parallel to the position of this axis in the pin unflexed condition; the pin between its mounting on the carrier and its part that carries the gear wheel presenting a greater resistance to bending in planes radial of the rotational path of the carrier than it presents to bending in planes tangen...

A powder metal gear wheel having a core density of at least 7.3 g/cc, and in one embodiment 7.4 to 7.6 g/cc and a hardened carburized surface. A method of manufacturing transmission gears comprises, sintering a powder metal blank to produce a core density of between 7.4 to 7.6 g/cc, rolling the surface of the gear blank to densify the surface, and then heating the rolled sintered part and carburizing in a vacuum furnace.

A flexible, cantilevered, gear wheel support, comprising a flexible spindle united at one end with a carrier and at the other end with a gear wheel support sleeve by means of welds effected by electron beam welding.

A gear wheel support of composite construction and comprising a gear wheel support sleeve with an internal abutment pillar secured in abutting relationship with an abutment pillar protruding from a face of a carrier, these pillars together comprising a flexible spindle co-axial with the sleeve with an annular clearance between this spindle and the sleeve.

Differential gears which obtain adequate differential motion limiting action under heavy loading, and switch between a differential motion condition and a differential motion limiting condition, inside a differential case are provided a pair of left and right pressure rings, which move freely in the direction of the wheel axles but are incapable of relative turning, the inner diameter being larger than that of side gears; a pair of clutch means on the two pressure rings; urging means for urging ...

A differential gear that can switch from differential movement state to limited differential movement has: a pair of pressure rings 12 in a differential case 11 able to move in the direction of the axles but unable to rotate relatively; clutches 16 on opposite sides of the pressure rings 12 that limit differential movement between the left and right axles 1 by limiting the relative rotation of the differential case 11 and side gears 15; the pressure rings 12 are urged so as to decrease the clear...

Differential gears which obtain adequate differential motion limiting action under heavy loading, and switch between a differential motion condition and a differential motion limiting condition, inside a differential case are provided a pair of left and right pressure rings, which move freely in the direction of the wheel axles but are incapable of relative turning, the inner diameter being larger than that of side gears; a pair of clutch means on the two pressure rings; urging means for urging ...

A planetary gear arrangement which includes at least one planet wheel moved by way of an eccentric and at least one further wheel concentrically disposed with respect to the planet wheel. The planet wheel and further wheel are brought into engagement by a closed cam plate cycloid provided on one wheel and a ring of rollers provided on one wheel and a ring of rollers provided on the other wheel. The contact points of the rollers with the cam plate describe points of a reference cycloid with both ...

A double enveloping worm gear is made with an involute profile for the worm thread and worm wheel teeth, equal radii for the mean enveloping arc of the worm waist and the worm wheel pitch circle and the adjacent generatrix of the enveloping cylinder of the worm tangential to the worm wheel base circle; the contact area of the mating surfaces of the worm thread and the worm wheel teeth is thereby increased in comparison with a conventional worm gear of the same size.

An improved steering apparatus is utilized to turn a steerable wheel of the vehicle. The apparatus includes an axially movable push rod or force transmitting member which is connected with the steerable wheel of a vehicle. A screw thread is formed on the push rod and cooperates with a nut which is rotated by a bevel gear connected with an input member. In order to effect a change in the steering ratio, a cam track is formed in the push rod. A cam follower or pin cooperates with the track to effe...