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WPT® Low Inertia (LI) High Torque Clutches provide the highest torque-to-size ratio of any WPT® Low Inertia product. WPT®'s LI High Torque features a "pancake" airtube which provides maximum actuator contact area increasing the clutch torque capacity. A large air connection is mounted directly to the airtube allowing for rapid clutch response time. WPT®’s Low Inertia High Torque Clutches are available in 1, 2 or 3 plate configurations with diameters ranging from 11 through 36 inches.
Unit of Measure

Specifications

Brands

 N/A WPT®
Static Torque at 100 Pounds per Square Inch (psi) (7 Bar) Pressure1 N/A 174000 lbf·in19700 N·m

Maximum Speed Complete Clutch

 N/A 1270 rpm

Maximum Speed Hub/Center Plates Only

 N/A 1640 rpm

Maximum Slip Speed

 N/A 1090 rpm

Lining Area

 N/A 360 in²2300 cm²

Weight and Inertia

Total Weight

 N/A 540 lb250 kg

Total Inertia

 N/A 320 lb·ft²13 kg·m²

Hub and Center Plate Weight

 N/A 200 lb90 kg

Hub and Center Plate Inertia

 N/A 170 lb·ft²7.2 kg·m²

Dimensions

Minimum Bore Range2 N/A 2.75 in69.9 mm
Maximum Bore Range3 N/A 6.30 in160.0 mm

Dimension - A (Imperial Mounting)

 N/A 27.000 in685.80 mm

Dimension - A Tolerance (Imperial Mounting)

 N/A +0.000 in-0.003 in+0.00 mm-0.08 mm

Dimension (B) Hole Circle (Imperial Mounting)

 N/A 25.50 in647.7 mm

Dimension (B) Diameter (Imperial Mounting)

 N/A 21/32 in

Quantity (Imperial Mounting)

 N/A 12

Dimension - C (Imperial Mounting)

 N/A 21.375 in543.00 mm

Dimension - C Tolerance (Imperial Mounting)

 N/A +0.003 in-0.000 in+0.08 mm-0.00 mm

Dimension - A (Metric Mounting)

 N/A 685.00 mm

Dimension - A Tolerance (Metric Mounting)

 N/A +0.00 in-0.08 in

Dimension (B) Hole Circle (Metric Mounting)

 N/A 648.0 mm

Dimension (B) Diameter (Metric Mounting)

 N/A 18.0 mm

Quantity (Metric Mounting)

 N/A 12

Dimension (C) H7 (Metric Mounting)

 N/A 540.00 mm

Dimension - D

 N/A 24-7/8 in631.8 mm

Dimension -E (Ventilated Center Plate)

 N/A 9-1/2 in241 mm

Dimension - E (Ductile Slotted Center Plate)

 N/A 9-3/4 in248 mm

Features

Features

 N/A
  • Hydraulic actuation available
  • High cycle life
  • Predictable preventative maintenance
  • Single-point actuator connection
  • End-of-shaft mounting
  • Slotted solid and ventilated center plates available

Note

Note

 N/A Consult WPT® Application Engineering for application assistance, service factors, specifications, and detailed drawings/3D models.
  • 1 Dynamic (slipping) Torque is 75% of the Static Torque.
  • 2 Contact WPT® for larger bore sizes. Listed bore sizes are for square key.
  • 3 Contact WPT® for larger bore sizes. Listed bore sizes are for square key.