The Functions of clutches

Indexing / Feeding : is to convert motion either from a continuously rotating shaft on intermittent basis OR by converting the reciprocating linear motion of a Pneumatic / Hydraulic cylinder into an intermittent rotary motiion.The rotary motion of the drive shaft is converted into an intermittent rotary motion by means of a hold pin and connecting rod attached to arm of the freewheel whose arc of index can be varied as required by adjusting slot. Especially when clutch is used as a indexing clutch, the Key connections must be free from play. The best indexing application is reached with unalloyed oils with a low degree of viscosity.

Overrunning: The inner ring can rotate faster then the outer ring in same direction of input and if stopped inner ring continues to rotate of input and if stopped inner ring continues to rotate at input speed and vice versa.  E.g. if a large motor or turbine has to be up to speed, by a slow speed starter motor, the use of freewheel between these elements enables the starter motor to be shut down without any mechanical involvement. If a freewheel is interposed in a drive between a gearbox / a large machine, the freewheel prevents any back drive OR damage to gearbox if at all any power failure. In this function, if the direction force / rotation changes, there will be automatic obstruction of connection between the component(s) and coupled machine.

Backstopping / Holdback: The Purpose of backstopping is to providing a return OR reverse lock. This smoothly permits rotation of the drive shaft by overrunning in one direction but immediately locks if the shaft by attempts to go on reverse, such as in inclined conveyors, elevators etc. in case of power failure OR motor is switched off, to avoid the conveyor load from running back.

Lubrication: Most clutches especially indexing and clutches with high speed overrunning are provided with unalloyed, acid free, low viscosity oil. Oil must be changed initially after about 80 operating hours & there after approximately 1500 operating hours .depending on the environment, refilling up to 1/3 level.

Applications: in all industries: Agricultural Machines - Fertilizer spreaders, Straw Presses, Feed Cutters, Tractor Distribution Gear, Plant Sprayers)Air craft - Power Transmission unit, Generator Construction- Cement Mixtures, Barrel Mills, Drilling Rigs) Drying - Furnaces, continuous Ovens. Food - Bottling Corking & dosing Machines, General Drives- Electric Motors, Worm Drive gearbox, Hoisting & Conveying Device - Elevator Drive, Bucket Conveyor, Screw Pumps, Leather - Tanning & Curing, Drying & Sewing, Machine Tools - Presses & Shapers. Packaging, Paper & Printing - Tube filling, Wrapping , Labeling, Paper Production, Inking & Feed Rollers. Power Plant: Turbine Starter, Blower, Pumps & Compressors: Vacuum Pumps , Turbo Compressors, Rubber & Plastic: Injection Moulding Textile - Blow Room -Machinery : Double rib & Jacquard loom, Circular & flush stitch machines, Wire processing, Fishing Net Machinery.