Fastner & Clip, Brake Shoe Series

Type 4-2W Low Coefficient Friction Composite Brake Shoe

Type 4-2W Low Coefficient Friction Composite Brake Shoe

Type 4-2W composite brake shoe for freight train has low coefficient friction, it is composed of two parts: steel backbone and compound materials.
Steel Supporter – it is made of steel sheet with more than 4mm thickness(Q235-A, GB/T 700).The outside radius of steel supporter is R450mm with 8 φ16mm stamped holes. 
Composite Materials – it is the brake shoe’s friction entity, it is mainly composed of rubber and resin, as well as few friction regulating preparation and filling materials. Its appearance is somber black.
Radiating Groove – Its function is heat radiation and drain contamination, which also can meet the working condition of wheel tread arch.
4-2W low friction composite brake shoe is mainly used for C60 type freight train. Compared with iron casting brake shoe, it owns better braking and friction stable performance. It has no heat split damage on the wheel tread, light weight, long service time, non lead and asbestos, environment friendly.


1)、Max. dimension is 352mm length, 86mm wide, 45mm thick. This type of brake shoe can be used for train wheel of diameter 840m.
2)、Physical, dynamical performance, and braking friction performance can meet the type L brake shoe’s requirement of TB/T 2403-2010.
3)、Cohesion strength can meet the requirement of TB/T 2403-2010 .
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