Specifications
According to customers` drawings, for train or wagon |
Heavy Duty Truck.Train.Bus,Automobile,petroleum drilling machine. |
Cast iron HT200 | Composite material |
Refer to standard GB/T 9439-1988 | 1.rail way composite Brake shoe Material: Composite material, high friction composite brake shoe, low friction composite brake shoe 2.Advantage: --Composite friction material bearing high energy braking; --High coefficient of friction and stability, --small heat fade for coefficient of friction, --Temperature insensitiveness, --Develop according to the samples or drawings --Certification:ISO9001-2000 |
4. The HGM - A high friction composition brake shoe steel back and friction body two parts.
Brake shoe shape size (mm) :
(1) the steel back of outer arc: R450
(2) brake shoe width: 820-1
(3) the thickness of the brake shoe: 45
5. The steel back is made of Q235A steel manufacturing, steel plate performance shall comply with the provisions of GB/T700.
6. Brake shoe is made up of steel back and friction.Friction main raw material for: phenolic resin, nitrile rubber, steel fiber,
reduced iron powder, graphite, etc.
7. The friction performance component of the learning performance and friction wear performance of two parts.
The mechanical properties shall comply with:
Table 1 physical and mechanical performance of the brake shoe
Unit performance indicators
G/cm3 density less than nominal worth plus or minus 5%
The compression strength of 25 Mpa or greater
The impact strength acuity 2.0 kJ/m2
The compression modulus of Mpa to 1.3 * 103 or less
Rockwell hardness (HRR) 90 or less
Water absorption percentage < 1.5%
Oil absorption percentage < 1.5%
Brake friction wear performance should be consistent with:
Table 2.The change of the instantaneous friction coefficient range (20 kn brake shoe pressure)
Speed (km/h) 0 10 20 30 to 40 50 to 60
The maximum 0.63 0.602 0.558 0.546 0.515 0.482 0.471
Standard 0.48 0.46 0.43 0.42 0.39 0.37 0.36
The minimum 0.42 0.40 0.40 0.36 0.33 0.32 0.37
Green power industry Co., Ltd. is a specialized supplier of auto parts and service in China. With the brand "GPI", Green power's products cover clutch systems and brake systems, including clutch plates, clutch discs, clutch covers, clutch facing, clutch buttons, brake pads, brake shoes, brake lining, and brake rolls. We work under the philosophy that "Quality First, Credibility First", and we're fully committed to providing our customers with the highest quality products, most affordable prices, excellent customer care and after sale service in the industry. Our professional management staff is service and customer oriented. Due to the good management system, superior quality control and excellent service after sale, we have constant enjoyed good reputation in the world market. We have our own manufacturers, and accept OEM order, the professional production staff who will look after your products and make sure you achieve the highest quality for that product. All the finished cargo will be 100% examined before shipped, We firm believe that a cheaper production does not mean a lower quality, we are able to make the perfect products for less money, and make sure that you get what you have ordered. The hospitable and wisdom GPI people sincerely anticipate your arrival and at the same time we are kindly looking forward to becoming your strategic partner based on our professional experience in the manufacture and service. GPI industry would like to be your purchase agent in China to take care of sourcing, production follow, logistic, business trip and after sales service.
