A shaft is a rotating machine element, usually circular in cross section, which is used to transmit power from one part to another, or from a machine which produces power to a machine which absorbs power.
The various members such as pulleys and gears are mounted on which produces power of machine..
The material used for ordinary shafts is mild steel. When high strength is required, an alloy steel such as nickel, nickel-chromium or chromium-vanadium steel is used.
Shafts are generally formed by hot rolling and finished to size by cold drawing or turning and grinding.
To avoid key failures due to overload, choose a key material with the same strength and hardness as the shaft or hub.
- Tight in the shaft keyway.
- Sliding (not clearance) fit in the hub keyway.
- Clearance fit radially -a small clearance between top of the key and bottom of the hub keyway.
- The relationship between key length and hub length also affects system balance.
Plot No.110,Por Industrial Park,