Gear Ring of Wheeled Tractor Gear-box
Characteristic:
1. High quality gear profiles
2. High load ability, high strength & high efficiency
3. Improvement in Contact-line position
A contact-line position or a contact area can be improved by way of changing an inclination angle of a worm tooth
4. Increased simultaneous interlocking
Number of teeth interlocking at a time may be more than tripled as compared with a cylindrical worm reducer
5. Reduced Size & Weight
Size of wheel may be made smaller by about 30% as compared with a cylindrical worm gear, resulting in considerable reduction also in weight
6. Reduction in Pressure on Unit Surface
7. Center distence: 100~560mm

Why choose us?
1. Xinghua Donghua Gear Co., Ltd. Was Established in 1979, we have 5 subsidiaries in china and have 6 subsidiaries abroad; Xinghua Donghua Gear Co., Ltd is one of the subsidiaries of it.
2. We specialized in producing all kinds of standard chains and special chains, cylinder gear, standard & non-standard sprocket and gearbox for middle & light type vehicle and tractor.
3. We have obtained ISO9001, ISO14001, ISO16969, AAA and API certificates.
4. Our partners among world top enterprises, such as JOHNDEERE, NEW HOLLAND, CLAAS, HONDA, KUBOTA, YANMAR, etc.

Technique parameter
Module: 1.5 to 4.0;
Teeth Number: 20 to 50;
Pressure Angle: 20° To 30° ;
O. D: 40 to 255;
L(max): 60



Enterprice Introduction
Xinghua Donghua Gear Co., Ltd. A wholly owned subsidiary of Hangzhou Donghua Chain Group Co., Ltd. Is the professional manufacturer of cylinder gear, standard & non standard sprocket and gearbox for middle & light type vehicle and tractor.

The enterprise possesses more than 500 sets of advanced equipments for hobbing, shaping, shaving, grinding and testing, and imported UNIC carburizing automatically lines for heat treatment. Our annual outputs of gears, shafts and sprockets are 4 million pieces and gearboxes are 50, 000 sets. The main products are engine gear, gearbox gear, tractor gear and power transmission sprocket, which widely used in middle & light type trucks, agricultural vehicle, tractors and engineering machinery etc.