Ring gears are important type of gears which are widely used in automobile industries for power transfer. Ring gears are commonly used in the steering system to transform the rotary motion of the steering wheel to the side to side motion in the wheels.

Ring gears are one of the simplest performance that can be performed on a vehicle. The basic feature of ring gear is that there is a propeller shaft pinion which transmits power to a large ring gear that has teeth cut on the inside surface of the ring. These gears help to retain power when bigger tires are put on a vehicle. The torque can be increased by a ratio change when there is higher take off power from a dead start. Ring gears are well designed mechanism that saves time and effort.

Internal ring gears are the gears having the series of cogs or mesh teeth present on the inner circumference of the gear rim. The internal ring gears are primarily used for gear actuators and planetary transmissions. These gears are designed to mainly for the need of automobiles. They are considered one of the heavy-duty and tough varieties of gears, which are unaffected by abrasion and corrosion.

An external ring gear is a ring gear that possesses the teeth on the outer girth of the gear cylinder or rim. The basic difference between internal and external ring and pinion gear is that of their very appearance. While the internal ring gears have the meshing teeth on the inner circumference of the gear rim, the external ring gears possess them on the outer.

Besides the automotive industry, ring gears are also used in aerospace and satellite applications. They are frequently used in applications where it is necessary to convert torque. They are designed for common automotive flexplates and flywheel applications as well as for torque converter applications. They are precision engineered auto-components, used to deliver required performance levels.