Backstop clutches are freewheeling devices that transmit torque in one direction. They prevent drives from backing up and keep driven systems such as inclined conveyors from going down.
The torque limiter has mechanical fuses which shear at specified torque limits to prevent damage to the driveshaft, transmission, axle, or other drivetrain component.
Slip clutches or disengagement torque limiters have a threshold torque that causes them to disengage the drive in case of jamming or overload. They are primarily used for personnel safety and equipment protection.
Other unlisted, specialty, or proprietary clutch designs or functions.
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Toothed contact surfaces transmit power without slipping. No heat is generated. Devices are engaged only when stopped or running at a slow speed (< 20 rpm).
Torque is transmitted from input to output by a coiled spring that wraps around the output element. The device is disengaged when the spring is uncoiled via a control tang at its end.
Sprags are steel wedges that tip in one direction to wedge between inner and outer races. They can be configured with either the inner or outer race as the input or output. Too much torque makes the sprags tip so much that contact is not maintained. Often, sprag clutches can transmit more torque than other designs of slip or overrunning clutches.
Other unlisted, specialized, or proprietary clutch engagement mechanisms.
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Other unlisted, specialized, or proprietary features.
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The drive shaft attaches to a bore and the output is a drive component such as a pulley, gear, or sprocket. These clutches are often designed to accept different drive components.
Other unlisted direct shaft attachments or flange mountings.
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