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Contact SupplierNEMA 17 is the motor of choice for RepRap's/3d printers/ desktop CNC routers. It is also a suitable motor for various robotics applications. This motor is the most preferred motor used by the rep rap community. Specifications - step angle: 1. 8 Deg. Step angle accuracy: +/- 5 percent. Resistance accuracy: +/- 10 percent. Inductance accuracy: +/- 20 percent. Temperature rise: 80 deg c max. Ambient temperature: -10 deg c +50 deg c. Insulation resistance: 10 m ohms min, 500Vdc. Dielectric strength: 500 vacs for one minute. Shaft radial play: 0. 02 Max (450 g-load). Shaft axial play: 0. 08 Max (450 g-load). Specifications: current a - 1. 5. Resistance (ohms) - 2. 8. Inductance (mH) - 5. 5. Holding torque n. Cm - 55. Detent torque n. Cm - 2. 6. No. Of leads - 4 (bipolar). Weight - 350g. Length - 48mm.