What is ring gear?

Ring gear turns out to be a ring with teeth, made of medium carbon steel, which is installed onto a flywheel or flex plate of an engine. In general, ring gear is simple but vital part for a vehicle. So, how to manufacture a ring gear?

The main production process can be divided into six stages:

1, blanking

Roll a bar of steel into a coiled form, and then cut the entire coil into slice and separate each steel loop in the form of ring. Remove the extra welding flash from the ring.

2, machining

In this stage, turning is involved. Generally speaking, it can be divided into two steps. In the first step, the internal diameter is turned and surface is finished. This step takes 1-1.5 minutes to finish. And subsequently, in the second step, outer diameter and outer face are turned. The time spent on this step is as same as the first step.

3, hobbing

Hobbing is regarding the process of cutting the outer diameter of the machining ring into gear teeth by a tool named hob cutter. Gear hobbing is finished on a machine called gear hobbler.

4, chamfering

In this stage, the sharp edges of the gear teeth on the clutch side of the gear are got rid of to avoid friction. The time needed in this stage is approximately between 1-2 minutes.

5, debarring and washing punching

This stage involves getting rid of the loose chips of metal and washing gear with antirust oil. These activities need one minute to be done.

6, induction hardening

The purposes of this stage are increasing the surface hardness of the gear teeth and controlling the depth of hardness as customers’ requirements.

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