Carlisle Brake & Friction Carlisle Brake & Friction
HH4 SERIES SERVICE BRAKE

HH4 SERIES SERVICE BRAKE

The Carlisle Brake & Friction HH4 Series Service Brake is a hydraulically applied, four-piston, caliper disc brake, designed for a variety of dynamic braking requirements. The HH4 brake is typically mounted to a flange on the vehicle’s axle or mounting bracket for service brake applications.

Additional Product Details

  • Flexible mounting alternatives to accommodate numerous vehicle types
  • Constructed from ductile iron casting for superior brake durability
  • Equipped with Carlisle premium asbestos-free linings, providing superior stopping performance and life
  • Optional seal materials available for compatibility with all actuation fluids and temperatures
  • Open caliper provides easy access for visual inspection and serviceability
  • Optional flange configurations and mounting patterns available

Technical Specifications

Caliper Material High-strength ductile iron
Disc Diameter Range 18.0 in to 20.0 in (457.2 mm to 508.0 mm)
Disc Thickness 0.5 in to 0.625 in (12.7 mm to 15.9 mm)
Displacement per Brake 0.6 in3 (9.8 cm3)
Lining Area per Brake 54 in² / 348.39 cm²
Lining Material Carlisle premium asbestos-free
Lining Volume per Brake 38.0 in³ (622.7 cm³)
Maximum Pressure 2300 psi / 158.58 bar
Mounting Attitude 3, 9 o’clock
Number of Pistons 4
Final Assembly Weight 81 lbs / 36.74 kg

Recommended Related Products

Normal Brake Usage
Brake Location
Actuation


Actuation Fluid
All gear reduction between the brake location and the vehicle ground contact.
2% standard unless otherwise specified.
Maximum pressure available at brake input.
Dynamic (Rdvn)
0% will be used unless otherwise specified.
0.5 is typical ground coefficient for unmaintained loose earth.
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