The Bangladesh brake shoes are designed specifically for railway vehicles in Bangladesh,such as meter gauge passenger cars and freight trains.They are made of high-quality synthetic or cast iron materials and are suitable for braking needs in tropical humid weather conditions.This product has the characteristics of wear resistance,moisture and corrosion resistance,and smooth braking,and is suitable for various braking systems.
2.Core technical features
High friction stability
Composite brake shoe:friction coefficientμ=0-10-0.35(adjustable,in accordance with BS 5892 standard)
Cast iron brake shoes:friction coefficientμ=0.15~0.25(high phosphorus cast iron,excellent wear resistance)
Good wear resistance
Composite brake shoe wear rate≤0.15 cm3/MJ(30%longer than traditional cast iron brake shoes)
Suitable for frequent braking conditions(such as urban commuter trains)
Environmental adaptability
Moisture and rust prevention(suitable for rainy climate in Bangladesh)
Non asbestos(compliant with international environmental regulations)
lightweight design
The weight of synthetic brake shoes is reduced by 40%compared to cast iron brake shoes,resulting in a decrease in unsprung mass
3.Materials and Structure
(1)Synthetic brake shoe
Ingredient ratio function
Phenolic resin 20-30%high temperature resistant matrix
10-15%aramid fiber enhances shear resistance
Graphite 5-10%adjusts friction coefficient
Aluminum oxide 15-20%improves wear resistance
(2)Cast iron brake shoes
High phosphorus cast iron(phosphorus content≥0.7%)
Alloy strengthening(chromium and molybdenum elements increase hardness)
Structure Design
Heat dissipation groove:Optimize groove layout to improve heat dissipation efficiency
Wear alarm:mechanical indicator(triggered by remaining 5mm)
4.Suitable vehicle models
Meter gauge(1000mm)trains:Bangladesh Railway passenger and freight cars
Standard gauge(1435mm)vehicles:Some modern high-speed trains
5.Maintenance requirements
Inspection cycle:Every 20000 kilometers or 6 months
Replacement standard:
Composite brake shoe thickness≤5mm
Cast iron brake shoe thickness≤10mm
Installation precautions:
Clean the brake drum/wheel hub contact surface
Check the gap between the brake shoe and the brake surface(1-2mm)
