Powerful Nema 23 motor type OK57STH56-2804A (23HS5628) for use in CNC machines or 3D printing. Technical data: Phase: 2 Model: OK57STH56-2804A Step angle: 1.8° Current: 2.8 A / Phase Resistance: 0.9 Ohm / Phase Torque: 1.8 Nm Induction: 2.5 mH / Phase Motor Frame Size ：57 x 56mm Shaft: O-shaft Ф6.35 mm, 22mm long Connector: 4-wire, 40cm long Rated Voltage: 24V Rated Current: 2.8A Resistance/Phase: 0.9Ω Inductance/Phase: 2.5mH Holding Torque:126 N.cm Precision angle step:±5% Resistance accuracy:±10% Precision inductance:±20% Temperature rise: 80deg Max (rated current, 2 phase on) Ambient temperature: ( - 20°)-(+ 50°) Insulation resistance: 100MΩ Min, 500VDC Insulation Force: 500VAC for a minute https://elecena.pl/product/23163429/nema23-57-stepper-motor-1-8-step-angle-2-phase-4-line-ok57sth56-23hs5628 2023-04-07 https://elecena.pl/product/23163429/nema23-57-stepper-motor-1-8-step-angle-2-phase-4-line-ok57sth56-23hs5628 2025-10-29