YEJMKJ Nema 17 Stepper Motor 2 Phase 1.8‌°‌ 0.6Nm(84.97oz·in) High Torque Bipolar 47mm 1.6Ω 2.3A 4-Wire Shaft 24mm φ5mm 42 Stepper Motor Cable 1M for 3D Printer DIY Robot CNC Machine

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• Specifications: Nema 17 Stepper Motor 2 Phase, Step angle 1.8‌dge (200 steps/rev), Holding torque 0.6Nm (84.97oz·in), Resistance 1.6Ω, Rated current 2.3A, Rotor inertia approx 85g.cm², Inductance 2.0mH±20%.
• Performance Data: Dimensional parameters of Nema 17 Stepper Motor are as follows. Body size 42x42x46.7mm, (1.66x1.66x1.84in), Installation hole distance 31mm, Shaft length 24±0.5mm, Shaft diameter φ5mm, D-cut length 24mm, incl. Cable 1m, 4-Wire Black (A+) Green (A-) Red (B+) Blue (B-), Weight 368g.
• Safety Data: Operating safely and reliably, this Nema 17 Step motor comes with the following key safety parameters. Dielectric strength 500V A.C 1 MINUTE; Insulation class(UL) B (130℃) [266°F]; Insulation resistance 100MΩ MIN; Operation ambient temperature -20℃ ～+50℃ [-4°F～122°F]; Operation ambient humidity ; Temperature rise 80K MAX.
• High Torque Low Noise: Engineered for minimal noise interference, our enhanced Nema 17 Step Motor boasts up to 20% greater holding torque through its higher-grade steel core construction and optimized winding technique. Experience smoother machine cycles with less surrounding disruption.
• Things to Note: Increasing speed lowers torque, with the recommended range of 0–600 RPM. Lower current results in lower torque and temperature rise, while reduced voltage decreases torque (range: 12–24V DC). In 3D printers, DIY robots, and CNC machines, the 42mm Stepper Motor's compact size and high torque are perfect for a variety of demanding applications.

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