The brake shoe carries the brake block.The block was usually made of cast iron or composition material.When the brake is applied, the shoe moves and presses the block against the tread of the wheel.This scrubbing causes wear and tear on the wheel tread and often causes brake squeal.Tread brakes on passenger train have now largely been superseded by disc brakes.Locomotive brake shoes are available in both composition and cast iron material according to AAR M-926.Various size are available to suit your locomotive application. Our brake shou design and manufacturing materials help mitigate broken steel backs,friction material delamination and metal pickup,leading to fewer premature brake shoe removals.
Product Features
1.For the speed of train:less than 100km/h.
2.Back Plate or Brake Shoe Support is made by cold stamping,material as mild carbon steel GB/T 700-2006 Q235B.
3.For the UIC Code:
Material could be P10 according to UIC 832-2004 with pearl structure and Brinell hardness of 197 to 255HB.
4.For the Chinese Railway Specification,material requirement as TB/T 1661 and TB/T 3104 is as followings.
| Iron Material |
C(%) |
Si(%) |
Mn (%) |
P(%) |
S(%) |
Cu(%) |
Cr(%) |
Tensile Strength(MPa) |
Hardness
(HB) |
| Grey Casting Iron |
2.9-3.5 |
1.8-2.2 |
0.6-1.2 |
≤1.0 |
≤0.15 |
------- |
------- |
≥150 |
179-255 |
| High Phosphorus Cast Iron |
2.8-3.6 |
1.5-2.2 |
0.8-1.2 |
1.3-2.0 |
≤0.15 |
------- |
------- |
≥150 |
179-255 |
| Alloy Cast Iron |
2.8-3.6 |
1.28-1.8 |
1.2-1.9 |
≤0.15 |
<0.07 |
0.4-1.0 |
0.3-0.9 |
200-320 |
200-260 |
Test Certificates includes:
Chemical Analysis Geometrical Characherisics
Brinell Hardness Impact Test,Texture and Support Resistance if necessary
Bend Test for shoe steel support
Micrography Appearance,Soundness and Marking
Jiangsu tedrail industrial co.,ltd is a high -tech enterprise intergrating railway passenger cars ,metro vehicles ,railway vehicle and rail fitting design and manufacturing .the company is committed to provide customers with the railway passengers transport system,railway freight system solutions ,the company has an experienced railway vehicle design team and ready to provide users with fast ,high-quality services at any time .the company products have been exported to the United States ,South Afric ,Brazil ,and other countries .covering the vehicle ,bogie and accessories ,coupler and accessories .gangway ,seat ,luggage rack ,air conditioning ,driver operation desk ,electrical cabinets ,electric connectors ,PIS system,FRP composite materials.
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