Abstract: A drivetrain component assembly comprising a drivetrain structure, means for generating a reference signal indicative of a frequency with which the drivetrain structure vibrates during operation of the drivetrain structure, at least one actuator coupled to the drivetrain structure, at least one sensor operable for monitoring vibrations transmitted from the drivetrain structure and producing a sensor signal in response thereto and a controller coupled to the at least one actuator and the at least one sensor. The controller receives the sensor and reference signals and generates an actuator signal in response thereto. The at least one actuator receives the actuator signal and generates a canceling vibration in the drivetrain structure in response thereto. The canceling vibration has a predetermined frequency and amplitude to substantially cancel-out vibrations in a predetermined bandwidth that are generated during the operation of the drivetrain structure.

Abstract: A drivetrain component assembly comprising a drivetrain structure, means for generating a reference signal indicative of a frequency with which the drivetrain structure vibrates during operation of the drivetrain structure, at least one actuator coupled to the drivetrain structure, at least one sensor operable for monitoring vibrations transmitted from the drivetrain structure and producing a sensor signal in response thereto and a controller coupled to the at least one actuator and the at least one sensor. The controller receives the sensor and reference signals and generates an actuator signal in response thereto. The at least one actuator receives the actuator signal and generates a canceling vibration in the drivetrain structure in response thereto. The canceling vibration has a predetermined frequency and amplitude to substantially cancel-out vibrations in a predetermined bandwidth that are generated during the operation of the drivetrain structure.

Abstract: A clip for securing inner and outer members of the splined joint against relative axial movement includes a first resiliently supported ear nested within a recess formed on the splined surface of the inner member and contacting an end face of the outer member. A second ear at the opposite axial end of the joint engages an end face of the outer member and is connected by way of an axially directed arm to the first ear. In a second embodiment a third ear coplanar with the first ear engages another arcuate portion of the groove and is connected by a second axial arm with the second ear. Provision is made in the outer member for the arms to extend axially along the joint. The clip is preferably made from a single length of steel wire.

Abstract: Telescoping parts which are adapted to be secured together by a snap ring centered by special metallic spring construction which yieldably holds the snap ring in optimum position to facilitate the telescopic assembly of the two parts.

Abstract: Male and female splined members are axially retained by an external split retaining ring at the accessible side of the female member and an internal split retaining ring occupying confronting grooves in the male and female members. The male and female members are disassembled by removing the external split retaining ring, over-inserting the male member to permit self expansion of the internal split retaining ring into a capturing release groove of the female member, and withdrawing the male member.