YEJMKJ 3 Pack Nema 17 Stepper Motor TR8x8 200mm with T8 Lead Screw 1.8‌°‌ 2 Phase High Torque 0.44Nm (62.31oz·in) Bipolar 1.7A 2.2Ω 39mm 42 Stepper Motor incl. Cable 1M for 3D Printer DIY Robot CNC

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• Dimensional details: The physical dimensions of a 3 Pack Nema 17 lead screw stepper motor are summarized below. Body size 42x42x38.7mm (1.66x1.66x1.53in), Lead screw TR8x8 200mm, Installation hole distance 31mm, 4-Lead, Black (A+) Green (A-) Red (B+) Blue (B-) , Cable 1M, Weight 355g.
• Parameters: Nema 17 linear actuator stepper motor with 200mm T8x8 lead screw, 2 Phase, Step angle 1.8‌ Degree(200 steps/rev), Holding torque 0.44Nm (62.31oz·in), Rated current 1.7A, Resistance 2.2Ω, Inductance 3.1mH±20%, Rotor inertia approx 65g.cm².
• Safety: This Nema17 lead screw linear Step motor with flange nut operates safely and reliably. Here are its key safety parameters: Dielectric strength 500V A.C 1 MINUTE; Insulation resistance 100MΩ MIN; Insulation class(UL) B (130℃) [266°F]; Temperature rise 80K MAX; Operation ambient humidity 15%RH～95%RH; Operation ambient temperature -20℃～+50℃ [-4°F～122°F].
• Key Points to Remember: Increasing speed lowers torque, with the recommended speed range of 0–600 RPM. Lower current decreases both torque and temperature rise, and reduced voltage results in lower torque (12–24V DC range). The 42mm Stepper Motor with T8 Lead Screw is widely used in 3D printers, DIY robots, CNC machines, and more. Its compact design and high torque make it ideal for tough applications.
• Precision-Built for Higher Output: Experience steadier operation with our enhanced Nema 17 Stepper Motor with T8 Lead Screw. Superior steel cores and optimized windings produce up to 20% higher holding torque. Engineered for quiet running, it reduces vibration and environmental sound interference.

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