An induction motors consists of stator winding and short circuited rotor.The stator winding is housed in stator slots of laminated core made of electrical grade steel.The rotor is either aluminium die-cast into rotor core or copper bars housed in the slots of rotor core.

For intermediate speed reduction range, Inline shaft or parallel shaft type speed reducers are used.

For quietness of operation, high speed-reduction ratio and for shaft axes at right angles to each other, worm-type reduction unit is normally used. This can be of double reduction type if very low speeds are envisaged.

Helical gears, while being more complex to make than spur gears, are much better suited for high-speed applications since the teeth engage more gradually than spur gears. Spur gears engage instantaneously along a line across the whole tooth, but helical gears engage at a point, develop into a line of contact, then separate at a single point of contact. This causes less noise mechanical shock in the tooth. The tooth shape of a helical gear is a segment of a helix, and their shaft axes can be oriented at any angle, though the contact area tends to be optimal when the shafts are parallel [2]. Thrust is generated along the shaft axis in helical gears, which has to be counteracted with thrust, taper, or spherical bearings.

An induction motors consists of stator winding and short circuited rotor.The stator winding is housed in stator slots of laminated core made of electrical grade steel.The rotor is either aluminium die-cast into rotor core or copper bars housed in the slots of rotor core.

For intermediate speed reduction range, Inline shaft or parallel shaft type speed reducers are used.

For quietness of operation, high speed-reduction ratio and for shaft axes at right angles to each other, worm-type reduction unit is normally used. This can be of double reduction type if very low speeds are envisaged.

Helical gears, while being more complex to make than spur gears, are much better suited for high-speed applications since the teeth engage more gradually than spur gears. Spur gears engage instantaneously along a line across the whole tooth, but helical gears engage at a point, develop into a line of contact, then separate at a single point of contact. This causes less noise mechanical shock in the tooth. The tooth shape of a helical gear is a segment of a helix, and their shaft axes can be oriented at any angle, though the contact area tends to be optimal when the shafts are parallel [2]. Thrust is generated along the shaft axis in helical gears, which has to be counteracted with thrust, taper, or spherical bearings.