1. Housing: fc-25 cast iron with high rigidity;

2, gear: high quality high purity alloy steel 50CrMnT tempering processing, carburizing and quenching treatment and grinding from;

3, the main shaft: high quality high purity alloy steel 40Cr tempering processing, with high suspension load capacity.

4. Bearing: equipped with roller cone bearing with heavy load capacity;

5, oil seal: the use of imported double lip oil seal, with a very high ability to prevent dust and oil leakage.