Carlisle Brake & Friction Carlisle Brake & Friction
A4 SERIES SERVICE BRAKE

A4 SERIES SERVICE BRAKE

The Carlisle Brake & Friction A4 Series Service Brake is a hydraulically applied, four-piston caliper disc brake, designed for a variety of dynamic braking requirements. The A4 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 braking durability
  • 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 17.0 in to 19.0 in (431.8 mm to 482.6 mm)
Disc Thickness 0.5 in / 12.7 mm
Lining Area per Brake 46 in² / 296.77 cm²
Lining Material Carlisle premium asbestos-free
Maximum Pressure 1500 psi / 103.42 bar
Mounting Attitude 3, 9 o’clock
Number of Pistons 4
Final Assembly Weight 78 lbs / 35.38 kg
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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