103H7126-0740 Sanyo Denki
Wake Industrial LLC is not an authorized distributor of this product.
The Sanyo Denki 103H7126-0740 is a stepping motor from the StepSyn Stepping Motors series with a holding torque of 1.27 Newton-meters and a 56 mm flange size. This 2-phase motor features a single shaft with a 6.35 mm diameter, has a step angle of 1.8 degrees, and a rated current of 3 Amps per phase. The connection type is lead wire with an AWG22 gauge, and the motor weighs 0.98 kilograms.
Internal Product Review
The 103H7126-0740 is a Sanyo Denki StepSyn stepping motor with 2-phase operation and a 1.8° step angle. A holding torque of 1.27 N·m and rated current of 3 A/phase support confident positioning and steady drive performance in motion systems. Lead wire construction and unipolar wiring make this unit a practical, well-executed choice for dependable stepper integration.
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Product Description:
The 103H7126-0740 is a hybrid stepping motor manufactured by Sanyo Denki within the StepSyn Stepping Motors series. Designed for open-loop positioning in pick-and-place heads, small gantries, and semiconductor handling tools, the unit converts pulse commands from a microstep drive into discrete angular increments. Its permanent-magnet rotor and laminated stator allow repeatable motion without an external encoder, making the device suitable for axes that demand tight incremental accuracy in industrial automation cells. The motor mounts directly to frames through an industry-standard NEMA 23 interface, helping machine builders standardize layouts while shortening wiring runs. Its balanced construction supports continuous-duty operation.
Each full pulse advances the shaft by 1.8°, a standard step angle that balances resolution and dynamic torque so the controller can interpolate smoothly during microstepping. The square mounting face measures 56 mm, providing compatibility with other NEMA 23 units and adequate bearing support for moderate radial loads. At standstill, the energized rotor can resist up to 1.27 N·m, giving linear stages enough static holding force to maintain position. To produce that torque, the windings draw 3 A per phase. The relatively low rotor inertia of 0.36 × 10⁻⁴ kg·m² lets the shaft accelerate quickly to the commanded speed without excessive settling.
Integration is straightforward because the single shaft has a diameter of 6.35 mm and extends from the front only, simplifying coupler alignment in tight enclosures. The body has an overall length of 75.8 mm, and the frame weighs 0.98 kg, so cantilever loads on lightweight aluminum brackets remain low. Two phase windings wired in a unipolar configuration have a resistance of 0.9 Ω per phase and an inductance of 2.2 mH per phase, permitting rapid current transitions when used with chopper drives. Connection is provided through AWG 22 lead wires with a minimum length of 305 mm, allowing plug-free routing inside control cabinets.
