Water-cooled brakes

  • Overview
  • Product range
  • Documents

Absorbs and dissipates huge thermal loads

Select from three different models of Airflex® water-cooled disc brakes designed to meet the needs of even the most severe applications. Our advanced design features match your specific application requirements, including high horsepower absorption, continuous slip service, dynamic tensioning, static holding and emergency stopping.​

  • Better energy dissipation - Improved fluid dynamics​
  • Continuous slip service - Absorbs and dissipates huge thermal loads

Models available

  • WCB Family (WCB2/WCBD/WCB3) – The original externally cooled disc brake
  • WCS - Externally-cooled, spring-applied brake
  • WCSB – A combined 2-in-1 water- and air-cooled disc brake


  • Robust design eliminates copper cracking
  • Self-supporting brake option eliminates costly support brackets
  • Split wear spacers for wear adjustment without disassembly

Improved fluid dynamics with better energy dissipation

Even the most severe brake applications are no match for Airflex water-cooled units. With single and multiple disc designs, spring-, air-, and hydraulically applied options and multiple sizes available, you can find an Airflex water-cooled brake to meet the needs of your application.

Continuous slip service

All models are designed to absorb and dissipate heavy thermal loads so they can provide continuous slip service all day long.

Patented piston design

Single or dual piston designs provide a wider range of applied tension with greater control. Standard single piston elements can be retrofitted with a dual piston powerhead to provide increased control.

Unique friction couple

A specially formulated friction material, interfacing with a copper alloy surface, eliminates the stick-slip characteristic associated with ordinary frictional devices. The dynamic coefficient of friction is greater than the static coefficient of friction.

Product range

WCB2/WCBD/WCB3 series

  • Available special, high-coefficient linings deliver 50% more torque
  • Unique optional dual-piston design improves control
  • Works with both open and closed loop coolant systems
  • Thermal capacities up to 5,200 HP (3,878 kW)
  • Torque capacities up to 1,180,000 lb-in (133,322 Nm)

WCSB series

  • By incorporating both a water-cooled brake and an air-cooled brake in a single package, the WCSB can provide dynamic tensioning, static holding and emergency stopping capabilities, thereby eliminating the need for multiple brakes.
  • Specially formulated friction material interfaces with a copper alloy surface to reduce or eliminate stick-slip characteristics
  • Thermal capacities up to 3,900 HP (2,908 kW)
  • Torque capacities up to 5,548000 lb•in (626,369 Nm)

WCS series

  • Spring-applied for emergency stopping applications
  • 1:1 dynamic-to-static torque ratio
  • Thermal capacities up to 2,600 HP (1,939 kW)
  • Torque capacities up to 1,030,000 lb•in (116,287 Nm)


Type Name Language Valid for Updated Download File type
Fact sheet Airflex Water-Cooled Third Generation Brake English Multiple 27 Jun, 2023 302.0 KB .pdf
Brochure Airflex® Industrial Clutch and Brake Product and Application Overview English Multiple 30 Mar, 2023 1.4 MB .pdf
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In our digital catalog you can find product specifications, literature and helpful tools like product configurators, 2D/3D models, cross reference, crimp specs and many more.