Gear drive is one part and parcel of mechanical power transmission system that transmits power and motion by successive engagement and disengagement of teeth of driver and driven gears. There exist four basic types of gear, namely spur gear, helical gear, bevel gear and worm gear. The spur gear and helical gear are applicable for power transmission between two parallel shafts, whereas bevel gear is useful for two intersecting shafts
In helical gears, teeth are cut at an angle (called helix angle) with the gear axis in the form of helix on the cylindrical gear blank. It replaces sudden engagement and disengagement of teeth (as in spur gear) by gradual mating and thereby reduces wear, vibration and noise. However, a pair of mating helical gears induces axial thrust force that is ultimately transferred to the bearings, which necessitates bulky and
Gear drive is most widely used mechanical power transmission system in small to large scale machineries. It is one engagement type positive drive (no slip) suitable for transmitting motion, torque and power over comparatively small distances (usually below 1 m) and also modifying them as per requirement. Power is transferred from driving shaft to driven shaft by means of successive engagement and disengagement of teeth cut on the cylindrical gear
Gear drive is one important mechanical power transmission element that can transmit power and motion from one shaft to another by means of toothed wheel rigidly mounted on the shafts. It is one engagement drive that indicates power transmission occurs by means of successive engagement and disengagement of teeth of two gears. Whereas the belt drive (one type of friction drive) is especially suitable for medium to long distance power
In many engineering applications, power is required to transmit from one point to another. Various power transmission systems such as electrical, mechanical, hydraulic, pneumatic, etc. can fulfill different requirements. Mechanical power transmission systems are used to transmit power, motion and torque from driver shaft (a prime mover such as electrical motor) to the driven shaft. Changing direction, speed and intensity are also important tasks for such transmission systems. There exist
