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2) Automatic transmission parts
A. Parking system parts

1. Advantages of precision forming for parking gear

◆ Metal flow line is completed, mechanical strength has increased 25% than machining.

◆ Adopts mold forming which could produce all kinds of special gear shape.

◆ Process effectiveness has increased 3-5 time compare to machining.

◆ Material use-ratio increased 20%.

2. Parking gear precision factors

◆ Special gear surface profile tolerance≤0.10mm.

◆ Gear angle tolerance±0.30.

◆ Gear surface roughness reached Ra1.6.