PD1591 SERIES PARK BRAKE

The Carlisle Brake & Friction PD1591 Series Park Brake is a spring applied, hydraulically released (SAHR), single piston, caliper disc brake designed for static and limited dynamic applications. This brake incorporates a floating caliper and requires a fixed disc mounting. A manual adjustment allows for lining wear and provides a mechanical release. Multiple calipers may be used on a single disc to proportionately increase torque output.

Additional Product Details

Flexible mounting alternatives to accommodate numerous 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
Many variations available

Technical Specifications

Caliper Material	High-strength ductile iron
Disc Diameter Range	Unlimited
Disc Thickness	.500in (12.7mm) or .790in (19.75mm)
Displacement per Brake	.77 in³ (12.6 cm³)
Inlet Type	.125-27 NPTF or .4375-20 UNF
Lining Area per Brake	9.8 in² / 63.23 cm²
Maximum Pressure	2000psi (137.9bar) or 3000psi (206.8bar)
Mounting Attitude	2, 10 or 1, 11 o’clock
Number of Pistons	1
Assembly Weight	28 lbs / 12.7 kg

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Company Name
Contact
Address 1
Address 2
Phone (Optional)
Email Address
Vehicle Type
Vehicle Model Number
Approximate Annual Volume
Normal Brake Usage	Service Park/ Secondary
Brake Location	Wheel Drive Shaft
Actuation	Mechanical Hydraulic SAHR
Actuation Fluid	Automotive Brake Fluid Mineral Oil Air
Gross Vehicle Weight (W gross)
Empty Vehicle Weight (W empty)
Gear Reduction (Gear red)	All gear reduction between the brake location and the vehicle ground contact.
Total Resistance (R%)	2% standard unless otherwise specified.
Maximum Brake Pressure (Pmax)	Maximum pressure available at brake input.
Number of Braked Wheels (n wheel)
Tire Rolling Radius in inches: Static (Rstatic)	Dynamic (Rdvn)
Brake Clearance in inches: Rim I.D.
Hub O.D.
Disc Dimensions in inches: O.D.
Thickness
Grade Hold Requirement (Gstatic.%)
Maximum Level Surface Speed (Vmax)
Stop Distance Requirement (Sstop)
System Actuating Time Delay (tdelay)	0% will be used unless otherwise specified.
Dynamic Grade Requirement (Gdvn.%)
Ground Coefficient (µground)	0.5 is typical ground coefficient for unmaintained loose earth.
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