Product Description:

The 103F7852-7041 stepping motor is manufactured by Sanyo Denki for the StepSyn Stepping Motors series. As a hybrid stepper unit, it converts discrete pulse commands from an indexer or PLC into incremental mechanical rotation, allowing automated equipment to position tooling, valves, or small conveyors without feedback devices. It employs the permanent-magnet and toothed-rotor construction typical of the series to deliver precise open-loop motion control in assembly and packaging machinery.

The motor advances by a basic step of 0.72°, so 500 pulses produce one full revolution and allow microstepping drives to achieve sub-arc-minute resolution. A holding torque of 0.93 N·m keeps the shaft locked when current is applied, which is important for indexing tables that must resist external forces at rest. The square flange measures 60 mm on each side and, together with a motor body length of 55 mm, provides a compact package for small machine frames. Rotor inertia is 0.4 × 10⁻⁴ kg·m², supporting rapid acceleration without excessive current spikes. Mechanical attachment is handled through 4.5 mm mounting holes on a 50 mm pitch around a 36 mm pilot, while the 20 mm shaft extension provides space for couplers or pulleys.

Radial loads up to 80 N can be applied at the shaft centerline, and axial thrust is limited to 20 N, so light belt tension or lead-screw preload will not damage the bearings. A shaft diameter of 8 mm matches standard miniature timing pulleys, and the unit mass of 0.78 kg is suitable for moving-gantry axes. The shaft dimensions support connections to compact mechanical components without requiring unusually large couplings. Factory-installed leads are 305 mm long and fabricated from UL3266 AWG22 cable, allowing direct termination inside a nearby junction box without additional extensions.