YEJMKJ 0.9° Nema 17 Stepper Motor 2 Phase High Torque 0.09Nm(12.75oz·in) Bipolar 0.4A 9.1Ω 42x21mm 4-Lead Shaft 17mm φ5mm 42 Stepper Motor Cable 1M for 3D Printer DIY Robot CNC Machine

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상품 특징

• Characteristics: Nema 17 pancake stepper motor 2 Phase, Step angle 0.9 degree (400 steps/rev), Holding torque 9Ncm (12.75oz·in), Resistance 9.1Ω, Rated current 0.4A, Rotor inertia approx 16.5g.cm², Inductance 12.5mH±20%.
• Specifications: Dimensional parameters of 0.9deg Nema 17 Stepper Motor are as follows. Body size 42x42x20.4mm, (1.66x1.66x0.81in), Installation hole distance 31mm, Shaft length φ5mm, Shaft diameter 17mm, D-cut length 13mm with Cable 1m, 4-Wire Black (A+) Green (A-) Red (B+) Blue (B-), Weight 119g.
• Safety Data: With safe and reliable operation, this Nema 17 Step Motor features 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.
• Elevate Your Equipment: Generate up to 20% stronger holding torque compared to standard units with this Nema 17 Stepper Motors. Its robust steel core construction and specialized winding design minimize operational noise, enabling quieter and more efficient machinery.
• Key Information: As speed increases, torque decreases. The ideal speed range is 0–600 RPM. Lower current lowers both torque and temperature rise, and lower voltage reduces torque (12–24V DC recommended). Used in 3D printers, DIY robots, CNC machines, and other systems, the 42mm Stepper Motor's compact size and high torque make it suitable for tough applications.

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