28BYGH 1,8° Zweiphasen-Schrittmotor mit offenem Regelkreis

28BYGH1.8 Zweiphasen-Schrittmotor mit offenem Regelkreis produced by Shanghai Siheng Motor Manufacturing Co., Ltd. It offers 6 Modelle (z.B., 28BYGH232-0674) with a standard 1.8° step angle (±0.09° error). Key specs vary by model: rated voltage 2.66–6.2V, rated current 0.67–0.95A, holding torque 0.43–1.2 kg·cm, weight ~110–200g, and motor length 32–51mm. It uses constant current drive (24V) and 2-phase excitation, with Class B insulation, 500V Isolationsspannung, und 100 Ω Isolationswiderstand.

The product also includes torque-speed curves (showing peak/effective torque vs. Geschwindigkeit), clear wiring definitions (color-coded: BLK/GREEN for phase A, RED/BLUE for phase B) with 2-phase excitation sequences, and detailed installation dimensions (z.B., 4-M2.5 mounting holes, 5mm shaft diameter).