This TK Synchronous Motor is dedicated to driving air compressors. The product uses full voltage start. If the power is not enough, the motor can be started with reduced voltage. The motor has large torque and stable rotation speed. It maintains a constant synchronous speed even under severe load changes, so its operation is very stable. The product has two structures, one is with drive shaft bearing, and the other is without drive shaft and seat sleeve bearing. But no matter which one it is, it has passed our strict quality test, so there is no problem in quality. This product is mainly used in refrigeration and fertilizer industries to drive mechanical equipment such as pumps and fans. We have been rooted in the motor industry for many years and have produced a variety of popular products, so you can buy our products with confidence.