SS2421-5041 Sanyo Denki
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The Sanyo Denki SS2421-5041 is part of the F SANMOTION Stepping Motors series and features a 42 mm flange size with a motor mass of 0.07 kg. It offers a holding torque of 0.083 N·m, a rated current of 1 ampere per phase, and a step angle of 1.8 degrees. The motor uses a lead wire connection type and has a winding resistance of 3.5 ohms per phase.
Internal Product Review
The SS2421-5041 is a Sanyo Denki F SANMOTION stepping motor with bipolar wiring and a lead wire type connection. A 1.8° step angle and 0.083 N·m holding torque support smooth, accurate positioning in compact motion systems. Compact construction and a 1 A/phase rating make the motor a strong choice for precise light-duty control.
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Product Description:
The SS2421-5041 stepping motor is manufactured by Sanyo Denki within the F SANMOTION Stepping Motors series. As a hybrid step motor, it provides incremental motion control for compact industrial axes, translating digital pulse commands into accurate rotary displacement for feeders, gauges, and miniature actuators. Its bipolar winding configuration connects directly to microstep drives, while the 42 mm frame and low mass make it suitable for space-limited installations inside laboratory instruments and semiconductor handling equipment.
The fundamental resolution is set by a step angle of 1.8°, which provides 200 full steps per shaft revolution. When energized but stationary, the rotor resists external disturbances with a holding torque of 0.083 N·m. The drive electronics must supply 1 A per phase, which delivers the required magnetizing force while limiting the temperature rise in the windings. The square mounting face measures 42 mm, matching common motor brackets. A phase resistance of 3.5 Ω per phase establishes the electrical load on the driver. The phase inductance of 1.2 mH per phase governs current rise time for smooth microstepping. A rotor inertia of 0.015 × 10^-4 kg·m² supports rapid acceleration without excessive overshoot.
The shaft supports an allowable radial load of 10 N, so side forces from belts or gears must remain below this limit. Axial loading is capped at 4.9 N of thrust to help preserve bearing life. The motor weighs only 0.07 kg, easing installation on lightweight gantries and other compact moving assemblies. Its body length is 11.6 mm, keeping the motor short behind the mounting flange. A circular output shaft provides a straightforward interface for compatible couplings. The lead-wire connection uses 26 AWG conductors, eliminating the need for board-mounted plugs. Bipolar wiring permits standard H-bridge control for full-step, half-step, or microstep operation.
