YEJMKJ 3 Pack Nema 17 Stepper Motor TR8x8 210mm with T8 Lead Screw 2 Phase 1.8‌°‌ 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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• Size Specifications: 3 Pack Nema 17 lead screw stepper motor dimensional parameters are as follows. Body size 42x42x38.7mm (1.66x1.66x1.53in), Lead screw TR8x8 210mm, Installation hole distance 31mm, Weight 359g, 4-Wire, Black (A+) Green (A-) Red (B+) Blue (B-) , Cable 1M.
• Parameters: Nema 17 linear actuator stepper motor with 210mm T8x8 lead screw, 2 Phase, Step angle 1.8‌dge(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.
• Operational Safety: The safe and reliable operation of this Nema 17 lead screw Step motor with flange nut is supported by these key safety parameters. Dielectric strength 500V A.C 1 MINUTE; Insulation class(UL) B (130℃) [266°F]; Insulation resistance 100MΩ MIN; Temperature rise 80K MAX; Operation ambient temperature -20℃～+50℃ [-4°F～122°F]; Operation ambient humidity 15%RH～95%RH.
• Important Details: Higher speeds lead to a decrease in torque, with operation recommended at 0–600 RPM. Reducing current lowers both torque and temperature rise, while lower voltage reduces torque (12–24V DC range). The 42mm Stepper Motor with T8 Lead Screw is perfect for 3D printers, DIY robots, CNC machines, and other automated systems, offering a compact size and high torque for demanding tasks.
• Unlock Machine Capability: Choose our upgraded Nema 17 Stepper Motor with T8 Lead Screw for increased holding torque and remarkably quiet function. Re-engineered steel cores and precision windings minimize noise, contributing to smoother overall system operation with less ambient disruption.

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