Railway Axles – Axle Manufacturers & Exporters in India
Railway Bogie is used in most of the Indian Railway main line passenger coaches and freight wagons of various types. The bogie constitutes of various components and all of them are safety items. The frame of Bogie called the Bogie frame is steel casting structure for passenger bogies are made of high tensile plates by process of fabrication and machining.
Wheel and axle set assembly
Railway wheels and axle set assembly is a vital component of railway bogie on which the railcar move. It constitutes of two wheels and one axle. Wheels can be cast wheels or forged wheels but axles are only manufactured through forging process. In India these wheel and axle sets are being manufactured at Yelahanka, Bangalore and at SAIL Durgapur but the production is not enough to meet with the requirement of Indian railways and thus Global tenders are floated time to time by Railway Board and wheels, axles or wheel sets are imported. Either loose wheels are imported or then they are pressed and turned with axles in India or vice versa. Complete assemblies are imported and directly put to use on wagons manufactured by wagon builders.
Brake beam assembly
A brake beam assembly is used in wagons or rail cars. The brake beam is of the shape of isosceles triangle and includes a rotatable clevis which is connected to a channel member. The clevis is connected to a leaf spring which is accommodates excessive force during braking. The brake head is connected to an adaptor so that the brake head and shoe can float and accommodate wheel wear or misalignment of the brake beam and the wheel and axle assembly.
Brake blocks or Brake Shoe or brake pads
A brake block is a rigid moulded friction material having a random fibre asbestos base and containing metallic particles. These arch shaped blocks were originally developed to have the ability to withstand the heavy braking demands of Electric Multiple Unit (EMU) stock, operating suburban passenger services. Since then its use has been extended to a range of duties from low speed shunting locomotives to high speed passenger trains.
Brake cylinder
Brake cylinder is mounted on the bogie frame or wagon body frame and is of two types with rigging return spring or without rigging return spring. A brake cylinder is used for quick braking purpose.
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