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Torque Limiters and Slip Clutches Specifications

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Type




   Type       
   Your choices are...
 
      
 
   Backstop Clutch
 
     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.
 
   Freewheeling Clutch
 
     Freewheeling clutches are unidirectional torque transmitters that spin freely in the direction opposite the intended drive rotation.
 
   Overrunning Clutch
 
     Overrunning clutches are used as a safety mechanism. The drive element stops and the load winds down freely.
 
   Shear Torque Limiter
 
     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 Clutch / Disengagement Torque Limiter
 
     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.
 
   Specialty / Other
 
     Other unlisted, specialty, or proprietary clutch designs or functions.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Torque Rating
 
     The maximum torque rating of a clutch drive.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Rotational Speed
 
     The rotary speed of the load. This specification applies only to rotary clutches. 
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Clutch Specifications




   Clutch Engagement       
   Your choices are...
 
      
 
   Noncontact
 
     Devices use a noncontact technology such as a magnetic field or eddy currents to provide engagement and drive.
 
   Friction
 
     Friction between contact surfaces transmits power. This is the most common configuration.
 
   Toothed
 
     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).
 
   Wrap Spring
 
     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.
 
   Oil Shear
 
     Drive engagement is achieved by the viscous shear of transmission fluid between the device's plates.
 
   Plate / Disc
 
     The torque level is controlled by compression springs which force plates together.
 
   Ball Detent
 
     Ball detent is a slip mechanism in which, upon overload, balls ride up out of seats to overcome springs or air pressure engagement.
 
   Roller Detent
 
     Rollers, held in place by springs, wedge between the inner and outer races to engage the clutch.
 
   Pawl Detent
 
     Pawl detent is a slip clutch mechanism in which, upon overload, the pawl overcomes spring or air pressure engagement and rotates out of its detent.
 
   Sprag
 
     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
 
     Other unlisted, specialized, or proprietary clutch engagement mechanisms.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Features & Options




           
   Your choices are...
 
      
 
   Adjustable Torque
 
     Adjustable torque is used primarily for slip clutches and torque limiters. Users can adjust the torque at which the clutch disengages or slips.
 
   Zero Backlash
 
     There is no play or backlash during the engagement of the load and no load disengagement during a direction reversal.
 
   Washdown Capable
 
     The housing is rated for washdown cleaning.
 
   Bi-directional
 
     Devices can be set-up to rotate in either direction.
 
   Automatic Re-engagement
 
     The clutch re-engages the load when the torque drops to an acceptable level.
 
   Slip Indication
 
     Slip indication can move a pin radially when an overload occurs, or send an electrical signal to the drive motor.
 
   Feedback
 
     Feedback provides an electrical or electronic signal for monitoring parameters such as position, speed, torque, lockup, or slip status.
 
   Other
 
     Other unlisted, specialized, or proprietary features.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
Mounting Geometry




   Shaft Configuration:       
   Your choices are...
 
      
 
   In-line
 
     The clutch or brake shaft is along same axis as the driven or braked load.
 
   Parallel
 
     The clutch or brake shaft is parallel, but offset from the axis of the driven or braked load.
 
   Right Angle
 
     The clutch or brake axis is perpendicular to the axis of the load.
 
   Other
 
     Other unlisted shaft alignments.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Drive / Load Connection       
   Your choices are...
 
      
 
   In-line Shafts
 
     The drive and the load have shafts which attach to a through-bore.
 
   Through Shaft
 
     The drive shaft attaches to a bore and the load is driven through the outer diameter.
 
   Shaft - Pulley / Gear / Sprocket
 
     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.
 
   Flange
 
     The brake or clutch is mounted to the object in motion via a flange.
 
   Other
 
     Other unlisted direct shaft attachments or flange mountings.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Shaft Attachment       
   Your choices are...
 
      
 
   Coupling / Set Screw
 
     The shaft attachment is a set screw.
 
   Coupling / Clamp
 
     The shaft attachment is a clamp.
 
   Other
 
     Other unlisted shaft attachments.
 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Bore Diameter
 
     The bore diameter.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Bore Keyway
 
     The bore keyway.
 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Keyway Width
 
     The keyway width.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
Dimensions




   Diameter
 
     The diameter or cross-sectional width of the brake or clutch assembly.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Length
 
     The dimension along the axis of rotation.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
   Weight
 
     The weight of brake and/or clutch.
 
   Search Logic:      User may specify either, both, or neither of the "At Least" and "No More Than" values. Products returned as matches will meet all specified criteria.
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