Which kind of motor used in treadmill?

Treadmills typically use either a DC (direct current) motor or an AC (alternating current) motor. DC motors are common in home treadmills due to their ability to provide variable speed control and quieter operation. In contrast, AC motors are often found in commercial-grade treadmills as they are more durable and can handle higher workloads. The choice of motor affects the treadmill's performance, durability, and maintenance requirements.