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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 483000 lbf·in54500 N·m

Maximum Speed Complete Clutch

 N/A 1150 rpm

Maximum Speed Hub/Center Plates Only

 N/A 1430 rpm

Maximum Slip Speed

 N/A 953 rpm

Lining Area

 N/A 1200 in²7400 cm²

Weight and Inertia

Total Weight

 N/A 1100 lb520 kg

Total Inertia

 N/A 900 lb·ft²38 kg·m²

Hub and Center Plate Weight

 N/A 240 lb110 kg

Hub and Center Plate Inertia

 N/A 100 lb·ft²4.0 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 30.000 in762.00 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 28.75 in730.3 mm

Dimension (B) Diameter (Imperial Mounting)

 N/A 21/32 in

Quantity (Imperial Mounting)

 N/A 12

Dimension - C (Imperial Mounting)

 N/A 24.375 in619.20 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 760.00 mm

Dimension - A Tolerance (Metric Mounting)

 N/A +0.00 in-0.08 in

Dimension (B) Hole Circle (Metric Mounting)

 N/A 730.0 mm

Dimension (B) Diameter (Metric Mounting)

 N/A 18.0 mm

Quantity (Metric Mounting)

 N/A 12

Dimension (C) H7 (Metric Mounting)

 N/A 620.00 mm

Dimension - D

 N/A 29 in736.6 mm

Dimension -E (Ventilated Center Plate)

 N/A 12 in305 mm

Dimension - E (Ductile Slotted Center Plate)

 N/A 12-1/8 in308 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.