The Polyclutch® Slipper Clutch is a standard-duty mechanical slip clutch for intermittent, continuous or overload torque control. It contains brass plates interfaced with long-life friction material and soft springs maintain pressure on the friction plates, assuring constant torque. An adjacent component of your mechanism can often be used as the clutch housing reducing overall cost or space concerns. Torque control in one direction can be achieved by combining with our one-way clutch.
Can accommodate shaft sizes up to 1 inch
The torque setting can be fixed or adjustable (denoted ‘F’ and ‘A’, respectively)
Available in a variety of sizes to meet torque needs up to 500 lb-in dependent upon RPM and duty cycle
Installation options are “Shaft-to-Shaft” or “Shaft-Through” (denoted ‘S’ and ‘O’, respectively)
Bore Diameters (dimension ‘B’) other than the standard sizes shown are available up to the maximum diameter shown, sized in inches or metric.
*Capacity at 50 RPM. Shown in lb-in. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.002 / -.000 inches
*Capacity at 50 RPM. Shown in lb-in. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.002 / -.000 inches
*Capacity at 50 RPM. Shown in lb-in. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.002 / -.000 inches
*Capacity at 50 RPM. Shown in lb-in. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.002 / -.000 inches
*Capacity at 50 RPM. Shown in Nm. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.05 / -.00 mm
*Capacity at 50 RPM. Shown in Nm. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.05 / -.00 mm
*Capacity at 50 RPM. Shown in Nm. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.05 / -.00 mm
*Capacity at 50 RPM. Shown in Nm. Torque capacities are only guidelines. Higher torques and speeds are possible depending on operating conditions. Consult engineering for details.
**Bore diameters (B) other than standards shown are available up to the maximum diameter. Tolerance +.05 / -.00 mm
How To Specify
Specifying a Polyclutch (Slipper clutches will start with the letter ‘S’ or ‘P’)
Part Number Example
Standard Options
Bore size changes – English (inches) and metric (mm)
High torque option, accomplished by extra springs – “H” part no. suffix
Will increase capacity of standard adjustable slip clutches to 50% (note: removing springs will lower capacity, increase sensitivity)
Keyways – English and metric – “K” part no. suffix
Low backlash in Slipper clutch – “UL” part no. suffix
*Heavy inner plates for extra cooling – “D” part no. suffix
*Note: Plate modification is subject to the space limitations (dimension C) of standard clutches. Further customization (model dependent) may be needed to accommodate thicker plates.
303/304 stainless steel construction – “Q” part no. prefix
Two-plate Slipper clutch – “R” version (part no. begins with “R”)
Plastic cover for Slipper and Slip-Aire clutches
Custom Clutches: If you are looking for something outside of our standard options, just ask!
CAD Files
3D Models (.STP)
The files are the standard bore diameter for each size. Please contact us if you require a model in a different bore diameter.
