Gears for Agricultural Machinery
Heavy-duty gears for tractors, harvesters and irrigation systems, with materials and heat treatment configured for dusty, heavy-load field conditions.
Materials and Heat Treatment
For heavy-duty service, two material routes are common. One is 20CrMnTi, carburized and hardened, giving a tooth surface of 58~62 HRC with a case depth of 0.5~3.0mm. The other is 42CrMo, quenched and tempered, at 269~321 HB. Worm wheels are typically made from tin bronze ZCuSn10P1, paired with worms in 40Cr or in carburized and hardened 20CrMnTi.
Operating Conditions Typically Encountered
Agricultural machinery gears work under high torque and low speed, which places high root bending stress on the teeth. Field dust is heavy, oil return and lubrication are often poor, and tooth surfaces wear quickly as a result. Loads fluctuate widely, with occasional impact.
In such dusty and muddy conditions, sealing and wear resistance matter more than precision. Load capacity, however, still comes down to material and heat treatment.
Gear Types and Specification Range
- Spur gears / Helical gears: as per the customer drawing
- Worm gears: Module M1~M16, worm thread count Z1~Z6, self-locking available
- Bevel gears: Module M1~M12, diameter ≤Φ500mm
Product pages: Spur and Helical Gears, Worm Gears, Bevel Gears.
Information Needed for a Quote
To prepare a quotation, send drawings or gear parameters, together with the application location and load conditions, noting in particular whether impact loads are present. The address is sales@dgpinyi.com.