103F5510-7041 Sanyo Denki
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The Sanyo Denki 103F5510-7041 is a stepping motor from the StepSyn Stepping Motors series with a holding torque of 0.26 Newton-meters and a basic step angle of 0.72 degrees. The motor has a flange size of 42 mm, a mass of 0.37 kilograms, and operates at 0.75 Amps per phase. It supports an allowable radial load of 35 Newtons and a thrust load of 10 Newtons.
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Product Description:
The 103F5510-7041 is a two-phase stepping motor manufactured by Sanyo Denki for the StepSyn Stepping Motors series. Designed for incremental positioning tasks, the unit translates digital pulse trains into precise shaft rotation, making it suitable for small pick-and-place modules, optical tables, and metering pumps where closed-loop feedback is not required. The square mounting face measures 42 ±0.25 mm, matching standard NEMA 17 and JIS 42 mm gearboxes while preserving compatibility with other compact actuators.
A single command pulse advances the rotor by 0.72°, giving 500 steps per revolution and enabling fine angular resolution without gearing. Output torque at stall reaches 0.26 N·m, which is sufficient to hold light mechanical loads in place while the motor remains energized. Each phase draws 0.75 A per phase, so the drive electronics can use low-current microstepping amplifiers. Dynamic response is aided by a rotor inertia of 0.065 × 10⁻⁴ kg·m², which minimizes overshoot during rapid starts and stops. The motor has a length of 49 mm and a 5 mm diameter shaft with a tolerance of −0.013 to 0 mm. Four M3 × 0.5 tapped holes are arranged on 31 mm centers for rigid panel or bracket attachment.
Total mass is 0.37 kg, which limits the inertia reflected to linear stages while easing installation on lightweight frames. The front bearing tolerates a radial load of 35 N and an axial thrust of 10 N, allowing direct coupling to lead screws, pulleys, or small spur gears without auxiliary supports. A minimum lead-wire length of 300 mm uses UL3266 AWG26 conductors and simplifies routing to nearby drive boards. The wire insulation has a typical temperature rating of 105 °C for cabinet environments. The pilot diameter and mounting dimensions support concentric alignment with attached housings, while the tapping depth provides adequate thread engagement for applications exposed to vibration.
