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HDBC4225
Hydraulic
Combination Brakes (Service and Park) |
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Description |
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| The Carlisle 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. |
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Application |
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- Electric drive rigid haul trucks
- Mobile construction and mining equipment
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Formulas |
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English Units*
Service Brake
Torque (lbf-in) = K × P × Disc Friction Radius (in)
Disc Friction Radius (in) = Disc Diameter (in) ÷ 2 - 2.0 (in)
K (Dynamic) = 8.48
P = Input Pressure - 100 (psi)
Park Brake
Torque (lbf-in) = Tangential Force (lbf) × Disc Friction Radius (in)
Disc Friction Radius (in) = Disc Diameter (in) ÷ 2 - 2.0 (in)
Tangential Force (lbf) = 6,850 or 8,750 lbf |
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