NBRM-FF HD brake linings combine a robust medium-friction asbestos-free formula with a glass fiber base, improving braking performance, wear life, and drum compatibility.
NBRM-FF HD Brake Linings
Description
A medium-friction block, NBRM-FF HD brake linings feature a glass fiber base, making them ideal in general freight and long haul applications.
NBRM linings meet the inertia dynamometer requirement of the FMVSS 121 brake standard at a 23,000 lb. GAWR when using an AL factor of 180 (type 30 air chamber and a 6″ slack adjuster) or greater.
NMRM HD brake linings perform, wear and offer exceptional drum compatibility, surpassing comparable heavy duty, asbestos-free linings.
Application
Recommended for use on S-Cam and Wedge brakes on trucks, tractors and trailers in highway, general freight and long haul applications over moderate terrain.
Gogan Hardness
20-30 GC
Nondestructive method of measuring a lining’s compressibility. Used as a quality control check of the consistency of formulation and processing of brake lining (SAE J379a).
Specific Gravity
2.02-2.08
Nondestructive test used as a quality control check of the consistency of formulation and processing of brake lining (SAE J380).
Tensile Strength
1300 PSI
Method of evaluating physical strength of brake lining (ASTM D952). Force required to break a sample 1.0 x 1.0 inch.
Temp Range
650 °F
Procedure
Typical Inertia Dynamometer Plot Test Parameters – FMVSS 121 Brake Standard
- Brake – 16.5″ x 7″ Meritor S-Cam
- AL Factor – 165
- Axle Load – 23,000 lbs.
- Rolling Radius – 20.7″
- Drum Weight – 120 lbs.
Retardation Force
Minimum Required Retardation
Temperature (F)
Pressure
NBRM Spec Sheet
Brake Interchange Comparison Chart
Core ID Chart
