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HDBC SERIES COMBINATION PARK & SERVICE BRAKE

HDBC SERIES COMBINATION PARK & SERVICE BRAKE

The Carlisle Brake & Friction HDBC4225 Series Brake is a combination, service and park, triple opposed piston, caliper disc brake designed for dynamic and static applications. One set of opposed pistons is a spring applied, hydraulically released (SAHR) park brake while the other two sets of opposed pistons are a hydraulically actuated service brake. The service brake includes retracting springs and automatic adjusters. Both the caliper and disc require fixed mountings. This brake provides a high torque range for heavy-duty service conditions. Multiple calipers may be used on a single disc to proportionately increase torque output. Also available as a service brake only without the SAHR park brake.

Additional Product Details

  • Flexible mounting alternatives to accommodate numerous vehicle and equipment 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

 

Technical Specifications

Caliper Material High-strength ductile iron
Disc Diameter Range 19in (482.6mm) to 31in (787.4mm)
Disc Thickness 1 in / 25.4 mm
Displacement per Brake 2.5 in³ (41.0cm³) park brake: 3.5 in³ (57.4 cm³)
Inlet Type .5625-18 UNF
Lining Area per Brake 102 in² (658 cm²)
Lining Volume per Brake 104 in³ (1704 cm³)
Maximum Pressure 3000 psi / 206.84 bar
Minimum Pressure 100 psi (6.9 bar) park brake: 1650 psi (113.8 bar)
Mounting Attitude 6, 12 o’clock
Number of Pistons 6

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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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Carlisle Brake & Friction
Main Headquarters
920 Lake Road
Medina, OH 44256, U.S.A
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Carlisle Brake & Friction is part of CentroMotion, a global manufacturing company specializing in friction products, information and control devices, mechanical power transmission products, and thermal and motion controls.

CentroMotion Brands: Carlisle Brake & Friction | CrossControl | Elliott Manufacturing | Gits Mfg. | maximatecc |Power-Packer | Weasler