Product Description:

The PWM3636-5250-7-1 is a brushed DC motor built by Pacific Scientific for the PWM Brushed Treadmill Motors series. The unit serves as a drive component that converts direct-current energy into continuous shaft rotation for conveyors, endurance test rigs, and cardio-training platforms that have been adapted for automated cycling. By pairing the motor with a pulse-width-modulated controller, integrators can vary its speed electronically without changing mechanical ratios, making it useful wherever compact, low-voltage motion is required in industrial automation.

Rated at 124 VDC, the armature is designed for low-voltage inverters that regulate duty cycle rather than frequency. Under this supply, the motor draws a nominal current of 16.8 A, which determines conductor sizing and protective fuse values. Electrical input is converted into 2.3 HP of mechanical output, providing capacity for the friction and belt tension typical of treadmill decks and light conveyors. When loaded to the reference operating point of 3590 RPM, the shaft reaches its intended speed for direct coupling to driven pulleys. These ratings apply during continuous duty, allowing the motor to operate for prolonged periods while its winding temperature remains within the insulation limits.

Magnetic excitation is established through a permanent-magnet field, removing the need for a separate shunt supply and simplifying drive wiring. A flywheel hub accommodates a mass with a diameter of 7 in, which stores kinetic energy to smooth transient loads and reduce current spikes. The DC drive motor responds to armature voltage adjustments rather than variable-frequency commands, matching the PWM control topology used for electronic speed regulation. The brushed design uses mechanical commutation to direct armature current as the rotor turns. Its flywheel interface also helps moderate abrupt speed changes when the connected load varies during operation.