Worm Gear

Worm Gear :-

Worm gears are special gears used in rudders, automobile steering mechanisms, hoists and rolling mills

Worm gear drives are typically used for transmission of power between two non-parallel and non-intersecting shafts.

Advantages of Worm Drives:

Worm gear drives operate silently and smoothly.

• They are self-locking.
• They occupy less space.
• They have good meshing effectiveness.
• They can be used for reducing speed and increasing torque.
• High velocity ratio of the order of 100 can be obtained in a single step.

Disadvantages of Worm Drives:

• Worm gear materials are expensive.
• Worm drives have high power losses and low transmission efficiency.
• They produce a lot of heat.