103H89223-5241 Sanyo Denki
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The Sanyo Denki 103H89223-5241 is a stepping motor from the StepSyn Stepping Motors series and has a basic step angle of 1.8 degrees. This motor features a holding torque of 19 Newton meters, a flange size of 106 mm, and a motor length of 221.3 mm. It operates at a rated current of 6 Amps per phase and weighs 10.5 kg.
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Product Description:
The 103H89223-5241 is a hybrid stepping motor manufactured by Sanyo Denki for the StepSyn Stepping Motors series. It converts each electrical pulse into a fixed rotor displacement, making it suitable for incremental motion tasks that require accurate open-loop positioning. A 106 mm square flange allows direct coupling to large belt drives, lead screws, or gear reducers. The keyed output shaft provides secure torque transfer to driven components in automated machinery. This configuration is suited to indexing tables, positioning stages, and other systems that operate through repeatable angular movements.
The motor divides a full revolution into 1.8° steps, enabling precise index control without an external encoder. A holding torque of 19 N·m keeps loads stationary when the drive is energized but motionless, limiting positional drift on vertical or high-inertia axes. Each phase draws a rated current of 6 A per phase. The phase resistance is 0.63 Ω per phase, while the phase inductance is 8 mH per phase. These electrical values establish the voltage requirements and electrical time constant that the drive must accommodate for a rapid current rise and controlled motion. Bipolar wiring allows the windings to operate in full-step or microstep modes using bidirectional current for higher torque density and smoother movement. The rotor inertia is 22 × 10-4 kg·m², providing sufficient momentum for repeatable acceleration profiles without excessive overshoot.
Mechanical loads are limited to an allowable radial force of 290 N and an axial thrust force of 100 N, helping protect the bearings when pulleys or couplings apply side or end loads. The laminated stator stack has a length of 221.3 mm, which must be accommodated within the available installation space. The complete assembly weighs 10.5 kg, so mounting plates, linear guides, and support brackets must be sized appropriately. The permitted operating temperature ranges from -10 to +50 °C. Operation is also permitted at 20% to 90% relative humidity, allowing the motor to function in typical industrial environments without supplemental climate control.
