The company in 2007 December for a large pump manufacturing plant to develop 904/914 engine oil pump gear, supporting exports, the first domestic production.
Main technical parameters: (similar to 914)
The inner gear ring: Z=35, M=2.5, public line of L=42.80
Gear: Z=29, M=2.5, public line of L=34.94; and 2 gear meshing center distance A=7.9. in the inner hole with double metal copper sleeve.
Density ≥ 6.8g/cc, hardness HBS ≥ 100. Welcome to inquire.