CRX23 “Coolrunner” Extra Heavy Duty 23,000-lb axle rated rigid-molded non-asbestos material is a rugged, dense, heavy duty premium block. CRX23 offers the ideal friction performance, with low lining and drum wear rates across all applicable temperature ranges. Coolrunner’s unique blend of insulating fibers, bonding resins and advanced graphites transfers heat away from the lining/drum interface, thus extending wear life while minimizing brake fade and noise. CRX23 delivers the cost savings expected by today’s demanding fleet customers. Produced in an ISO9001-listed facility.

Friction Properties

  • Static Friction Coefficient : 0.42 ±0.05μ to 450ºF/230ºC
  • Dynamic Friction Coefficient: 0.36 ±0.05μ to 650ºF/350ºC
  • GAWR: 23,000 lbs @ 165/180 AL

Physical Properties

  • Brinell Hardness: 15 HB
  • Swell at 200ºC/392ºF: -.008"
  • Swell at 400ºC/750ºF: -.0010"
  • Fireproof

Thermal Properties

  • Maximum Service Temperature: 425ºC/800ºF

Material: Graphite Matrix

Appearance /Formats:

Drum Brakes.
Disc Brake Pads.

Applications

Heavily Loaded Over the Road Tractor Trailers.
Tri-Axle Dump Trucks.
Tandem Axle Refuse Trucks.
Cement Mixers.
Logging, Mining, other cycle-duty heavy haulers.

Reach (EC) 1907/2023 & RoHS2015/863/EU

Additional

Recommended Mating Surfaces: Cast Iron with surface finish < 0.5µm Ra (20µin CLA).
Steel hardened & tempered,: Cast Steel, Cast Gray Iron.
The above data is taken from specific test parameters, therefore results can vary in differing application conditions: