What is a gear pump without meshing force

Gear pump without meshing force; It is mainly composed of input shaft, synchronous gear, partition, suction and discharge gears, bearings, pump body, and front and rear pump covers. The power of the prime mover is transmitted from the input shaft to the suction and discharge gears through a synchronous gear. The suction and discharge gears are respectively fitted onto the input shaft 1 and the transmission shaft through splines. The meshing force of gear transmission is borne by synchronous gears, while the suction and discharge gears only bear the hydraulic pressure generated by oil suction and discharge.