AB4 SERIES SERVICE BRAKE

The Carlisle Brake & Friction AB4/ AAB4 Series Service Brakes by Japan Power Brake, are hydraulically applied, four piston caliper disc brakes designed for a variety of dynamic braking requirements. These brakes are typically mounted to a flange on the vehicle’s axle or mounting bracket for service brake applications.

Additional Product Details

4-piston service brake with automatic adjusters
Flexible mounting alternatives to accommodate numerous vehicles 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, such as brake fluid and mineral oils

Technical Specifications

Caliper Material	High-strength ductile iron
Disc Diameter Range	431.8 mm - 482.6 mm
Disc Thickness	12.7 mm / 0.5 in
Inlet Type	7/16-20 UNF-2B
Lining Area per Brake	294 cm² / 45.57 in²
Mounting Attitude	3, 9 o’clock
Number of Pistons	4
Final Assembly Weight	40 kg / 88.18 lbs

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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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