Flexible Pin Bush Type Coupling

Flexible Pin Bush Type CouplingCOUPLING INTRODUCTION Couplings are mechanical elements that  two drive elements which enables motion to be transferred from one element to another. The drive elements are normally shafts. We tend to see lot of applications of the couplings mainly in the automobiles, for example the drive shaft which connects the engine and the rear axle in a bus or any automobile is connected by means of a universal joint. In order to transmit torque between two shafts that either tend to lie in the same line or slightly misaligned, a coupling is used. Based on the area of applications there are various types of coupling available. But they are generally categorized in the following varieties 1. Rigid Couplings 2. Flexible Couplings Flexible Coupling : Flexible couplings are normally used in areas where the coaxiallity between the connecting shafts is not always assured and in areas where there is a possibility of occurrence of shocks in the transmission is applicable. They are also called as Elastic Couplings. By construction these couplings tend to have a elastic member in between the two connecting entities. The different types of flexible couplings are 1. Star Couplings & Spacer Coupling 2. Flexible Pin Bush Type Couplings 3. Gear Tooth Coupling "Half Gear & Full  Gear 4. Tyre couplings - Jaw Type & S-flex Type 5. M.S. Brake Drum Coupling 6 M.S. Chain Coupling Flexible Pin Bush Type Couplings These coupling are used where there is requirement to compensate axial and angular mis-alignment. Manufactured from diameter 3" to 24" with High torque transmission capacity up to 23780 Nm in 20 sizes. These couplings permits drive in either direction also.    TABLE A Service Factors Prime Over DRIVEN MACHINE Electric Motor Steam Turbine Shafting Steam Engine Water Turbine IC Engine Multi- Cylinder IC Engine Single Cylinder Diesel Multi- Cylinder Diesel Engine Single Cylinder Small Fans, Even Torque Machines, Smooth Loads, Generators, Centrifugal Pumps, Blowers, Line Shafting. 1.00 1.25 1.50 2.00 2.50 Alternators, Machine Tools (light), Beaters, Exhausters, Wood-Working Machines (light), Welding Generators, Textile Machines 1.25 1.50 1.75 2.25 2.75 Wood-Working Machines (heavy), Multi-Crank Compressors and Pumps, Generators( fluctuating loads), Rotary Dryers & Screens, Rotary Compressors, Planers, Pulp Grinders, Shakers, Mine Fans 1.50 1.75 2.00 2.75 3.00 Cement Mills, Wire Mills, Small Printing Presses 1.75 2.00 2.25 3.00 3.25 Printing Presses (large), Single Crank Compressors & Pumps, Hammers, Ball & Tube Mills, Rolling Mills (light),  Shearing Machines, Punches, Rock & Stone Crushers, Brick Making and Similar Machines, Grinders, Winding Gears and Drums, Pulverizes, Cranes & Winches,  Mechanical Shovels & Dredges. 2.00 2.25 2.50 3.25 3.50 Prolonged & Reversing Drives, Heavy Rolling Mill Drives, Continuous, Severe Traction and Haulage Loads 2.25 2.50 2.75 3.50 3.75           Click here to download..