YEJMKJ Nema 17 Stepper Motor TR8x8 300mm with T8 Lead Screw 2 Phase 1.8‌°‌ High Torque 0.44Nm (62.31oz·in) Bipolar 1.7A 1.7Ω 40mm 42 Step Motor 4-Wire Connector Cable 1M for 3D Printer DIY Robot CNC

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• Dimensional data: Key dimensions for Nema 17 lead screw stepper motor include the following. Body size 42x42x39.2mm (1.66x1.66x1.55in), Lead screw TR8x8 300mm, Installation hole distance 31mm, Weight 386g, 4-Wire, Black (A+) Green (A-) Red (B+) Blue (B-) , incl. Cable 1M.
• Characteristics: Nema 17 linear actuator stepper motor with 300mm T8x8 lead screw, 2 Phase, Step angle 1.8‌dge(200 steps/rev), Holding torque 0.44Nm (62.31oz·in), Resistance 1.7Ω, Rated current 1.7A, Rotor inertia approx 60g.cm², Inductance 3.1mH±20%.
• Operational Safety: With safe and reliable operation, this Nema17 lead screw Step motor with flange nut features the following key safety parameters. Dielectric strength 500V A.C 1 MINUTE; Temperature rise 80K MAX; Insulation resistance 100MΩ MIN; Insulation class(UL) B (130℃) [266°F]; Operation ambient temperature -20℃～+50℃ [-4°F～122°F]; Operation ambient humidity 15%RH～95%RH.
• Important Notes: As speed increases, torque decreases. The ideal speed range is 0–600 RPM. Lower current lowers both torque and temperature rise, and lower voltage reduces torque (12–24V DC recommended). The 42mm Stepper Motor with T8 Lead Screw is used in 3D printers, DIY robots, CNC machines, and other automated systems. Its compact size and high torque suit demanding applications.
• More Power, Less Noise: Generate up to 20% stronger holding torque compared to standard units with this Nema 17 Stepper Motor with T8 Lead Screw. Its robust steel core construction and specialized winding design minimize operational noise, enabling quieter and more efficient machinery.

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