In the wonderful world of mechanical power transmission, gear gear chain china drives employ a special and prominent place. This is actually the the majority of preferred technology if you want to transmit considerable power over a short distance with a continuous velocity ratio. The system of gear drives is fairly simple – the teeth, which are cut on the blanks of the apparatus wheel, mesh with each other to transmit power. To avoid slipping, the projections on one 
disc mesh with the recesses on various other disc in gear drives.
This technology uses different types of gears for power transmission. In fact, it can transmit power not merely between parallel shafts, but also between non-parallel, co-planar, and intersecting etc. shafts.