NBSM-FF was designed for special applications where high braking temperatures and foreign particle impregnation from dust, dirt and grit are an issue.
NBSM-FF Truck Brake Linings
Description
NBSM-FF truck brake linings are heavyweights for rough-going, off-the-road applications. This exclusive high-density semi-metallic friction formula resists foreign particle impregnation from dust, dirt, and grit. Assures friction even in high braking temperatures. Protects drums, provides longer life and guards other components against excess heat.
NBSM-FF passes 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 6″ slack adjuster) or greater.
NBSM-FF blends special steel wool fiber with aramid fibers to produce a block for the most difficult loads and terrain.
Application
Recommended for use on trucks, tractors, and trailers in all applications including general cargo, stop and go urban driving, bus, grain, liquid hauling, dump trucks and lowboys. Also designed for hydraulic cam brakes and air operated steel axles.
Gogan Hardness
31.7 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
2.65
Nondestructive test used as a quality control check of the consistency of formulation and processing of brake lining (SAE J380).
Tensile Strength
8710 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
800 °F
Procedure
Typical Inertia Dynamometer Plot Test Parameters – FMVSS 121 Brake Standard
- Brake – 16.5″ x 7″ Meritor S-Cam
- AL Factor – 180
- Axle Load – 25,000 lbs.
- Rolling Radius – 20.7″
- Drum Weight – 120 lbs.
Retardation Force
Minimum Required Retardation
Temperature (F)
Pressure
NBSM Spec Sheet
Brake Interchange Comparison Chart
Core ID Chart
