Patent ID: 8382595

Claim:
A torque-limiting device assembly comprising: a bell comprising a top wall and a circumferential side wall defining a bell interior, wherein the top wall is located proximate to a first end of the bell and the side wall defines an open second end of the bell, and wherein a stem aperture is formed in the top wall and a plurality of first engagement features are formed on an inner surface of the top wall; a clutch stub shaft comprising: a clutch flange having a top surface, the top surface comprising a plurality of second engagement features; a stem axially extending from the top surface of the clutch flange, the stem adapted to engage a shaft, wherein the clutch stub shaft is sized to be received into the bell interior such that the stem extends through the stem aperture of the top wall of the bell and the inner surface of the top wall of the bell is proximate to the top surface of the clutch flange; and a resilient member secured to the circumferential side wall defining the bell interior, the resilient member biasing the top surface of the clutch stub shaft towards the top wall of the bell such that the first engagement features of the bell frictionally engage the second engagement features of the clutch stub shaft, wherein a first input torque applied to the stem that is less than a predetermined input torque is transferred to the bell when the first engagement features of the bell frictionally engage the second engagement features of the stem clutch, and wherein a second input torque applied to the stem that is greater than the predetermined input torque causes the second engagement features of the stem clutch to disengage with the first engagement features of the bell such that the second input torque is not transferred to the bell.