In the world of mechanical power transmission, gear drives employ a special and prominent place. This is the many preferred gear chain china technology when you need to transmit considerable power over a short distance with a continuous velocity ratio. The mechanism of equipment drives is fairly simple – the teeth, which are cut on the blanks of the gear wheel, mesh with one another to transmit power. To avoid slipping, the projections on one disc mesh with the recesses on 
other disc in equipment drives.
This technology uses various kinds of gears for power transmission. In fact, it could transmit power not only between parallel shafts, but also between nonparallel, co-planar, and intersecting etc. shafts.