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WSC Series

WSC Series
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Packaged Performance Products WSC Series Clutches Mechanically Activated, Basic Wrap Spring Clutch Design WSC Series wrap spring clutches are mechanically actuated, eliminating the need for external electrical control devices. These simple, trouble free, easy-to-install clutches feature a high torque capacity in a small, compact package. A choice of three different operating styles is available. Features n Five standard sizes n Standard bore sizes from 1/4" to 1-1/2" n Static torque rating from 25 lb.in. to 2500 lb.in. n Mechanically actuated n Choice of hub or shaft input n 1, 2 or 4 stop collars standard n Overtravel stop – Special n Anti-overrun – Special n Adjustable stop feature – Special n Self-lubricating, no maintenance n Simple mechanical actuation n Easy-to-machine hubs readily adapt to application needs n Single stop collars for single revolution operation Multistops for less than one turn Start/Coast-To-Stop (Model SS) Control Tang The overrunning clutch (Model O) transmits torque up to the rated value in the positive direction, when disengaged it only transmits some drag torque in the reverse direction. Major applications for this unit are anti-overrun protection and anti-backup devices. The load is allowed to overrun the input, should the load speed exceed the input speed. In reverse it acts as a one-way clutch, preventing reverse rotation. Control Tang The start/coast-to-stop clutch (Model SS) accelerates the load just after the control collar has been released, thus the collar is free to rotate allowing the spring to grip both hubs together. To disconnect the clutch, the collar has to be restrained, stopping the collar from rotating via the stop face. The spring will then be opened and the clutch will be disengaged. The output is free to rotate and will be stopped by system friction and clutch drag torque. The start/coast-to-stop clutch is engaged until the collar is stopped, which disengages the clutch allowing the load to coast to a stop. Single Revolution (Model S) The single revolution clutch (Model S) accelerates in the same manner as the model SS. The deceleration starts when the collar is restrained, and the spring is opened, disengaging the clutch. For Model S, the brake torque capability is limited to 10% of the rated torque. All WSC Series clutches are easy to install. The shaft can be pinned or, on larger units, delivered with keyways, a simple solution for applications requiring accurate positioning. One, two or four stop per revolution collars are available.

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Packaged Performance Products WSC Series Clutches Specifications Static Torque (lb.in.) Inertia, shaft input rotating parts (lb.in.2) Inertia, hub input rotating parts (lb.in.2) Maximum radial bearing load at maximum speed (lbs.) Maximum operating speed (RPM) See page 36 for Minimum Inertia Requirements. See page 8 for Mounting Examples. Optional Multiple Stop Collars Basic Selection See pages 6–7 for basic product selection guidelines. For complete Application Engineering information see pages 36–38. 7. Stop collar: Standard Stops: 1, 2 or 4 Example: WSC-6, S, CCW, HI, 1" bore, 4 stop...

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*Retaining ring clearance diameter

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Part Numbers These are the most commonly requested parts. Other units offering overrunning or start/coast-to-stop operation are available. Bore Stops Size Operation Rotation Input None 1 These are the most commonly requested parts. Other units offering overrunning or start/coast-to-stop operation are available. Bore Stops Size Operation Rotation Input None 1 These are the most commonly requested parts. Other units offering overrunning or start/coast-to-stop operation are available. Static Torque (lb.in.) Inertia, shaft input Maximum radial bearing load at maximum speed (lbs.) Maximum...

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Packaged Performance Products WSC-6, WSC-8 Clutches Dimensions in. (mm) WSC-6 2.311 (58.70) .866 (22.00) Bore & Keyway Sizes Bore A All dimensions are nominal unless otherwise noted.

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Packaged Performance Products WSC-6, WSC-8 Clutches Part Numbers WSC-6 Bore Size These are the most commonly requested parts. Other units offering overrunning or start/coast-to-stop operation are available. These are the most commonly requested parts. Other units offering overrunning or start/coast-to-stop operation are available. Static Torque (lb.in.) Inertia, shaft input rotating parts (lb.in.2) Inertia, hub input rotating parts (lb.in.2) Maximum radial bearing load at maximum speed (lbs.) Maximum operating speed (RPM)

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