A bearing including a generally cylindrical sidewall including an electrically conductive substrate, and an electrically non-conductive or low-conductive sliding layer coupled to the substrate, where the generally cylindrical sidewall includes a plurality of protrusions protruding radially inward or radially outward from a bore defining a central axis, where at least one protrusion is adapted to contact an opposing component such that at a point of contact the bearing has a void area free of sliding layer so as to provide electrical conductivity between the bearing and the opposing component, and wherein at least one protrusion has a spring rate of not greater than 30 kN/mm, such as not greater than 25 kN/mm, such as not greater than 15 kN/mm, or such as not greater than 10 kN/mm.

A servo includes a motor, an output shaft used to drive an external component and having an external lateral surface, a gear set arranged between the motor and the output shaft and used to transmit power from the motor to the output shaft. The gear set includes an output gear arranged around the output shaft. The output gear defines a through hole that allows the output shaft to pass therethrough. The through hole has an internal lateral surface facing the external lateral surface. The servo further includes a connection ring arranged around the output shaft between the external lateral surface and the internal lateral surface. The connection ring is used to connect the output gear to the output shaft when a load placed on the output shaft is less than a preset value, and disconnect the output gear from the output shaft when the load exceeds the preset value.

A tolerance ring has a hollow band with outwardly extending corrugated protrusions forming waves that engage an inner surface of a bore of a housing. At one end of the tolerance ring is an inwardly flared guide surface extending axially and radially from the band. The guide surface acts as a tapered entrance to assist the insertion of a shaft into the hollow band during assembly of the ring into the bore of the housing.

An assembly including an outer member; an inner member; and a tolerance ring disposed between the inner member and the outer member, wherein the tolerance ring is a split ring comprising opposing edges, where the edges engaged with at one of the inner member or the outer member so as to prevent or restrict movement between the tolerance ring and at least one of the inner member or the outer member, or where the tolerance ring is deformed as installed between the inner member and the outer member and forms at least one buckled region in the tolerance ring due to an interference fit between the inner member and the outer member, where in an uninstalled state, the buckled region is absent.

Provided is a transmission system including: a gear shaft that receives a force acting in a direction perpendicular to a rotational centerline; a rotor shaft that is rotatably supported at both ends on the same rotational centerline as the gear shaft, spline-fitted with the gear shaft, and coupled to a rotor of an electric motor; and an elastic member that is press-fitted between an inner circumferential surface and an outer circumferential surface of the gear shaft and the rotor shaft that face each other in a radial direction centered at the rotational centerline. An amount of compression of the rubber member as the elastic member in the radial direction increases from a press-fitting start position toward a press-fitting end position located respectively on a leading end side and a base end side at one end of the rotor shaft.

A universal joint shaft with universal joint shaft protection comprises at least one shaft element for transmitting torque, at least one protective tube element arranged around the shaft element, and an intermediate bearing, by means of which the shaft element is rotatably mounted about an axis of rotation (L) in the protective tube element, wherein the intermediate bearing comprises an outer ring fixed to the protective tube element and an inner ring fixed to the shaft element, which are rotatable relative to each other, and a clamping mechanism by means of which the inner ring is fixed on the shaft element.

A torque assembly including an outer component, an inner component fitted within the outer component, and a tolerance ring provided between the outer component and the inner component to transmit torque between the inner and outer components, wherein torque transferred between the inner and outer components is adjustable by modifying the axial spacing between the inner component and the outer component.

A shaft coupling structure includes a shaft, a sleeve, into which the shaft is inserted, and a tolerance ring. The tolerance ring includes a cylindrical main body and a plurality of protuberances, which protrudes outward in a radial direction from an inner circumferential surface of the main body. The tolerance ring is fitted between an outer circumferential surface of the shaft and an inner circumferential surface of the sleeve. A communication passage that connects an inside and an outside of each protuberance is provided between the outer circumferential surface of the shaft and the main body.

A method of securing a yoke to a clutch includes arranging a circlip in a circumferential channel in an outer surface of a tool and inserting the tool inside a bore in the clutch. Legs arranged in the channel extend to expand the circlip to an expanded state to arrange the circlip outside of the channel in a circumferential groove in the bore. A spacer is snapped onto a portion of the clutch and arranged between two ends of the circlip to secure the circlip in the expanded state. The tool is then removed from the bore, and a yoke is inserted into the bore. The spacer is then removed from the bore allowing the circlip to contract such that the spacer partially occupies both the groove and a circumferential depression in the yoke. This secures the yoke to the clutch.

Briefly, implementations of claimed subject matter relate to methods and devices for coupling a first rotating shaft to a second shaft. In a particular implementation, an end of a plurality of resilient fingers of a resilient structure may be radially displaced to permit positioning of the resilient structure over a first shaft. An inwardly-directed portion of each of the plurality of the resilient fingers of the resilient structure may be secured to a channel located on an inner surface of a second shaft. After securing the resilient structure to the second shaft, the one or more resilient fingers of the resilient structure may be positioned within a slotted ladder ring encircling the first shaft.