YEJMKJ 5 Pack Nema 17 Stepper Motor TR8x8 350mm with T8 Lead Screw 1.8‌°‌ 2 Phase High Torque 0.44Nm (62.31oz·in) 1.7A 2.2Ω Bipolar 42x39mm 4-Lead Cable 1M for 3D Printer DIY Robot CNC Machine

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• Dimensional data: Key dimensions for 5 Pack Nema 17 lead screw stepper motor include the following. Body size 42x42x38.7mm (1.66x1.66x1.53in), Lead screw TR8x8 350mm, Installation hole distance 31mm, 4-Lead, Black (A+) Green (A-) Red (B+) Blue (B-) , with Cable 1M, Weight 401g.
• Specifications: Nema 17 linear actuator stepper motor with 350mm T8x8 lead screw, Step angle 1.8‌ Degree(200 steps/rev), 2 Phase Holding torque 0.44Nm (62.31oz·in), Resistance 2.2Ω, Rated current 1.7A, Inductance 3.1mH±20%, Rotor inertia approx 65g.cm².
• Safety Data: This Nema17 lead screw linear Step motor with flange nut ensures safe and reliable performance, and here are its 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 Considerations: With higher speeds, torque decreases. The ideal range for operation is 0–600 RPM. Lower current results in reduced torque and temperature rise, while lower voltage reduces torque (recommended: 12–24V DC). The 42mm Stepper Motor with T8 Lead Screw is used in various applications like 3D printers, DIY robots, and CNC machines, offering a compact design and high torque for demanding tasks.
• Advanced Steel Construction: Built with advanced steel cores and precisely tuned windings, this Nema 17 Stepper Motor with T8 Lead Screw generates up to 20% stronger holding torque while significantly reducing noise output. Achieve smoother machine motion and lower acoustic impact.

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