AC motors are commonly used in commercial treadmills because they are well suited to prolonged and demanding operation. DC motors are widely used in home and lighter-duty machines.

Motor type alone does not determine treadmill quality. Continuous motor output, controller design, cooling and intended duty cycle should also be considered.

There is no single horsepower figure suitable for every gym. User weight, operating hours, running speed and expected daily usage all affect the requirement.

For commercial treadmills, continuous motor performance is more useful than comparing peak horsepower alone.

A larger running surface provides more room for the user's natural stride and is especially useful for running, taller users and higher-speed training.

The right size should balance user comfort with the available floor space in your facility.

A motorised treadmill controls belt speed using a motor and typically allows walking, running and incline-based training.

A curved treadmill is self-powered by the user and is particularly suited to sprinting, athletic conditioning and functional training.

Preventive maintenance can include regular cleaning, inspection of the running belt and deck, correct belt alignment and tension, lubrication where applicable, and timely replacement of wear components.

For a commercial facility, ease of servicing and spare-part availability should be considered before purchase, not only after a breakdown occurs.