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Flywheel Ring GearsFlywheel Ring Gear manufacturers to OEM customers

How are flywheel ring gears manufactured?

A square or rectangular steel bar of a preset length is bent into a circle configuration and the ends welded together, with the major diameter larger than the finished gear size.

The ring is then heated, and either stamped or bored to size on the minor diameter. Next, the gear teeth are hobbed onto the ring, and hardened to improve strength and resistance. Lastly, the ring is weld molded onto a flanged or flat flexplate or shrunk onto a flywheel.

Flywheel Ring Gear applications

The flywheel assembly is used primarily to start the engine in a vehicle. When the engine is started, the engine crankshaft turns, and its pinion gear engages with the ring gear of the flywheel to rotate it, in turn rotating the crankshaft on which it is mounted. The rotating crankshaft moves the engine parts through the combustion cycle to start the engine. Once the engine is running on its own, the weighted and balanced disc of the flywheel keeps the crankshaft running smoothly between combustion cycles, preventing the engine from slowing down between piston firings.

Lastly, the flywheel helps connect the engine to the transmission, enabling the torque power produced by the engine to flow through the transmission to the rest of the drive train to the wheels to mobilize the vehicle. AmTech manufactures flywheel ring gears for common automotive flexplate and flywheel applications, as well as for torque converter applications, in a variety of customer specified sizes and tolerances.

Step By Step Ring Gear Manufacturing Process

Flywheel ring gears

Gear manufacturing services

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