YEJMKJ 5 Pack Nema 17 Stepper Motor TR8x8 100mm with T8 Lead Screw 1.8‌°‌ 2 Phase High Torque 0.44Nm (62.31oz·in) 1.7A 1.7Ω Bipolar 42x40mm 4-Wire Connector Cable 1M for 3D Printer DIY Robot CNC

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• Specifications: Nema 17 linear actuator stepper motor with 100mm T8x8 lead screw, Step angle 1.8‌ Degree(200 steps/rev), 2 Phase Holding torque 0.44Nm (62.31oz·in), Resistance 1.7Ω, Rated current 1.7A, Inductance 3.1mH±20%, Rotor inertia approx 60g.cm².
• Size Performance Data: 5 Pack Nema 17 lead screw stepper motor dimensional parameters are as follows. Body size 42x42x39.2mm (1.66x1.66x1.55in), Lead screw TR8x8 100mm, Installation hole distance 31mm, 4-Lead, Black (A+) Green (A-) Red (B+) Blue (B-) , with Cable 1M, Weight 324g.
• 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; 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.
• High Torque Low Noise: This upgraded Nema 17 Stepper Motor with T8 Lead Screw utilizes fortified steel cores and optimized windings to reliably deliver up to 20% increased holding torque. Designed specifically for low-noise output, it fosters smoother machine functionality and reduces ambient sound interference effectively.
• Things to Note: Higher speed leads to a reduction in torque, with operation recommended at 0–600 RPM. Lower current reduces both torque and temperature rise, and lower voltage decreases torque (optimal range: 12–24V DC). In 3D printers, DIY robots, and CNC machines, the 42mm Stepper Motor with T8 Lead Screw's compact size and high torque are perfect for a variety of demanding applications.

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