A kinetic energy recovery apparatus for use in powered vehicles can connect to the axle of the car or similar vehicle. As the vehicle moves forward, the kinetic energy from the forward spin of the axle is transformed into electricity by the apparatus. A belt connected to the device transfers the energy from the spinning axle to a generator, which generates electricity which is then stored in a battery.

A kinetic energy recovery apparatus for use in powered vehicles can connect to the axle of the car or similar vehicle. As the vehicle moves forward, the kinetic energy from the forward spin of the axle is transformed into electricity by the apparatus. A belt connected to the device transfers the energy from the spinning axle to a generator, which generates electricity which is then stored in a battery.

A pulley device for supporting a belt of a chain tensioning idler or a runner roller includes a bearing having an outer ring mounted for rotation relative to a coaxial inner ring and first and second C-shaped pulley parts mounted on the radially outer surface of the outer ring with their openings facing each other. The radially outer portion of the first and/or second pulley part includes at least one radial through opening, and a first portion of at least one of the pulley parts radially inward of the through opening is deformable from a first configuration in which the first pulley part is axially movable relative to the outer ring to a second configuration in which the first pulley part forms an interference fit with the outer ring or with the second pulley part. Also a method of connecting the pulley parts to the outer ring.

A pulley device for supporting a belt of a chain tensioning idler or a runner roller includes a bearing having an outer ring mounted for rotation relative to a coaxial inner ring and first and second C-shaped pulley parts mounted on the radially outer surface of the outer ring with their openings facing each other. The radially outer portion of the first and/or second pulley part includes at least one radial through opening, and a first portion of at least one of the pulley parts radially inward of the through opening is deformable from a first configuration in which the first pulley part is axially movable relative to the outer ring to a second configuration in which the first pulley part forms an interference fit with the outer ring or with the second pulley part. Also a method of connecting the pulley parts to the outer ring.

A pulley device for a transmission element having a pulley, a bearing, and at least one sleeve mounted freely in the bore of the inner ring of the bearing. The pulley device includes at least one annular protection shield, the shield retained axially in a first element from the pulley and coming into immediate proximity with the other element, the other element having at least one shoulder projecting radially ensuring that it is axially retained with the shield.

A pulley device for a transmission element having a pulley, a bearing, and at least one sleeve mounted freely in the bore of the inner ring of the bearing. The pulley device includes at least one annular protection shield, the shield retained axially in a first element from the pulley and coming into immediate proximity with the other element, the other element having at least one shoulder projecting radially ensuring that it is axially retained with the shield.

A pulley device configured to support a belt of a chain tensioning idler or a runner roller includes a bearing having inner and outer rings and a pulley having at least one C-shaped pulley part mounted on the bearing outer ring with an inner cylindrical portion of the pulley part press-fitted on the bearing outer ring, the bearing outer ring having a material projection and the inner cylindrical portion of the pulley part having an axial groove configured to allow the material projection to slide axially through the groove when the pulley part is slid axially onto the outer ring, the material projection forming an axial stop for the pulley part when the pulley part is rotated relative to the bearing outer ring.

A pulley device configured to support a belt of a chain tensioning idler or a runner roller includes a bearing having inner and outer rings and a pulley having at least one C-shaped pulley part mounted on the bearing outer ring with an inner cylindrical portion of the pulley part press-fitted on the bearing outer ring, the bearing outer ring having a material projection and the inner cylindrical portion of the pulley part having an axial groove configured to allow the material projection to slide axially through the groove when the pulley part is slid axially onto the outer ring, the material projection forming an axial stop for the pulley part when the pulley part is rotated relative to the bearing outer ring.

A pulley device for a tensioner roller or winding roller for a transmission element, providing a bearing and a pulley. The pulley including two pulley elements that are C-shaped in axial section. At least one of the pulley elements has an axial through-opening, the other pulley element providing an axially protruding portion housed in the opening, a collar being formed by deformation of the protruding portion in order to provide axial retention with the opening. The at least one through-opening is provided at its periphery with at least one recessed zone formed in a substantially radially set-back manner with respect to the protrusion, which passes through the opening.

A pulley device for a tensioner roller or winding roller for a transmission element, providing a bearing and a pulley. The pulley including two pulley elements that are C-shaped in axial section. At least one of the pulley elements has an axial through-opening, the other pulley element providing an axially protruding portion housed in the opening, a collar being formed by deformation of the protruding portion in order to provide axial retention with the opening. The at least one through-opening is provided at its periphery with at least one recessed zone formed in a substantially radially set-back manner with respect to the protrusion, which passes through the opening.