Product overview This DC permanent magnet treadmill motor provides 3.0 HP output at 180 V DC. It is designed as a universal replacement motor for compatible treadmills. The motor delivers reliable torque for running applications when installed and operated according to the specified requirements. Key specifications Voltage: 180 V DC Power: 3.0 HP Current: 5.5 A Speed: 3800 RPM or 4800 RPM Insulation class: F Weight: 7.3 kg 1P CODE: 1P20 Shaft and mounting dimensions: A: 110 mm B: 103 mm C: 45 mm D: 265 mm Compatibility and fit This motor is intended to replace existing treadmill motors with matching mounting and shaft dimensions. It is not guaranteed to be identical to the original motor, but it will fit and function when the A, B, C, and D dimensions match your machine. When ordering, provide the A, B, C, D dimensions and a clear photo of your old motor to confirm compatibility. Electrical and installation requirements Maximum working voltage must not exceed the rated 180 V DC. Keep voltage ripple as low as possible. Motor lead wire connections: Red wire: positive Black wire: negative Yellow/green wire: ground Grounding must be reliable. Under normal temperature, motor lead terminal and end cover meet the withstand voltage test of AC 1800 V, 50 Hz, 5 mA, 1 s without breakdown. Motor should run under rated voltage with no abnormal vibration or noise. From the driving end, the motor rotates clockwise. Follow proper electrical and mechanical installation practices when replacing the motor. Operating guidelines and maintenance Lubrication: Apply special silicone oil under the treadmill running belt every two weeks to maintain lubrication and reduce resistance. Usage pattern: It is recommended to use the treadmill in alternating periods, for example 30 minutes in use followed by 30 minutes rest, then repeat. This helps prolong motor life. Avoid prolonged ultra-low speed operation. Speeds below 5 km per hour are considered ultra-low speed and cause poor heat dissipation. Limit continuous operation at such speeds to under one minute; low-speed intervals should be brief. For best heat dissipation and continuous run time, operate at speeds above 7 km per hour. At speeds above 7 km per hour the motor can run continuously for up to 120 minutes. Follow these methods to reduce the chance of motor damage from overheating or excessive wear. Practical applications and typical scenarios Home treadmill repair: Replace a worn or failed motor in a residential treadmill where the shaft and mounting dimensions match. Commercial light-use fitness equipment: Install in light commercial or hotel gym treadmills that require a 3.0 HP DC motor and meet the specified dimensions. Refurbishment projects: Use when rebuilding or upgrading a treadmill to restore running performance, provided electrical and mechanical compatibility is confirmed. Ordering checklist Measure and provide dimensions A, B, C, and D. Provide a clear photo of the existing motor. Confirm that your treadmill control and power supply are compatible with a 180 V DC motor and can supply minimal voltage ripple. Notes and limitations Our motor can replace your original unit when dimensions and electrical compatibility match, but the replacement motor may not be exactly identical to your original motor. Follow the operating and maintenance recommendations to minimize overheating and extend service life.