Product Description:

The 103H7823-5740 is a hybrid stepping motor produced by Sanyo Denki within the StepSyn Stepping Motors series. As a two-phase stepper, the unit converts discrete pulse commands from a microstep drive into precise incremental shaft motion, making it suitable for indexing systems, pick-and-place heads, and small gantry axes used throughout industrial automation. By providing repeatable open-loop positioning without position feedback devices, it simplifies motion control in equipment that requires moderate torque at low to medium speeds.

Each full step of the motor advances the shaft by 1.8°, providing a resolution of 200 steps per revolution that works with standard drive microstepping ratios. At standstill, the motor can resist external loads with 2.7 N·m of holding torque, allowing machine elements to remain stationary without a mechanical brake. The electrical circuit draws 2 A per phase, so the drive electronics must supply that continuous current while remaining within applicable thermal limits. Low reflected inertia is supported by a rotor inertia of 0.84 × 10⁻⁴ kg·m², reducing settling times when the load moment is small. A square mounting interface measuring 60 mm across the flange lets the frame bolt directly to compatible brackets and gearheads.

The motor housing extends 85.8 mm from the mounting face, providing a compact installation depth for space-constrained machinery. The total assembly weight is 1.34 kg, making the motor suitable for moving-table installations where axis mass must remain low. Torque is transmitted through a D-shaped shaft, which provides a flat surface for set-screw couplings and helps prevent slipping during acceleration. Internally, the windings use a bipolar layout, so the motor accepts four-lead connections and supports full-bridge drive topologies. This winding arrangement allows current to reverse through each phase as the drive advances the rotor between commanded positions.