103F5508-70XE42 Sanyo Denki
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The Sanyo Denki 103F5508-70XE42 is part of the StepSyn Stepping Motors series and features a 0.72 degree basic step angle with a 42 mm frame size. This motor offers a holding torque of 0.18 newton-meters, has a five phase design, and operates at 0.75 amps per phase. It has a motor body length of 40 mm, supports operating temperatures from -10 to +50 degrees Celsius, and includes an encoder end cap option.
Internal Product Review
The 103F5508-70XE42 is a Sanyo Denki StepSyn stepping motor with a 5-phase configuration and an encoder end cap. A fine 0.72° basic step angle and 0.18 N·m holding torque support accurate positioning and steady motion control. AC 1000 V withstand voltage highlights dependable electrical integrity.
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Product Description:
The 103F5508-70XE42 is a five-phase stepping motor built by Sanyo Denki for the StepSyn Stepping Motors series. As a pulse-driven actuator, it converts controller commands into incremental rotary motion for indexers, small conveyors, optical stages, and precision positioning axes in industrial automation. The motor provides controlled movement without requiring a conventional servo system for basic indexing tasks. Its compact form supports installation in machinery where available mounting space and moving mass are limited.
The motor advances its shaft in discrete increments of 0.72°, providing fine positioning resolution without relying on external feedback. A holding torque of 0.18 N·m keeps light loads stationary when command pulses stop, which is useful for pick-and-place heads and similar mechanisms. Each phase draws 0.75 A per phase, allowing a compact driver to energize the windings while controlling thermal rise. The winding arrangement reduces detent error and produces smoother movement than a typical two-phase design. Electrical insulation withstands up to AC 1000 V between the windings and frame, helping protect the motor against electrical breakdown. Insulation resistance is rated at a minimum of 100 MΩ, which limits leakage current during operation and extended periods of inactivity.
The square frame measures 42 mm across its flats and fits mounting arrangements commonly associated with NEMA 17 brackets. Four M3 × 0.5 tapped holes on a 31 mm pitch secure the motor body, which has a length of 40 mm. A 22 mm pilot diameter seats in the mounting register to maintain concentric alignment, while the 5 mm shaft accepts standard compact couplings. The permitted ambient operating range is -10 °C to +50 °C, allowing the motor to function in many unconditioned machine enclosures. An encoder housed in the end cap supplies closed-loop position feedback for controls that require verification of shaft movement. The short body helps limit rotor inertia, allowing the motor to respond quickly to acceleration and deceleration commands in automated test, assembly, and material-handling equipment.
