YEJMKJ 0.9° Round Nema 14 Stepper Motor 2 Phase High Torque 2Ncm(2.83oz·in) Bipolar 0.35A 14Ω 36-14mm 4-Lead Shaft 10.5mm φ5mm 36mm Stepper Motor Cable 0.5M for 3D Printer DIY Robot CNC Machine

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• Specifications: Dimensional parameters of 0.9deg Nema 14 Round Stepper Motor are as follows. Body size 35x35x13.2mm, (1.38x1.38x0.52in), Installation hole distance 43.8mm, Shaft length φ5.0mm, Shaft diameter 10.5mm, D-cut length 6mm Cable 0.5m, 4-Wire Black (A+) Green (A-) Red (B+) Blue (B-), Weight 50g.
• Parameters: Nema 14 mini stepper motor 2 Phase, Step angle 0.9 degree (400 steps/rev), Holding torque 2Ncm (2.83oz·in), Rated current 0.35A, Resistance 14Ω, Inductance 9.8mH±20%, Rotor inertia approx 15g.cm².
• Safety Data: The safe and reliable operation of this Nema 14 Round Step Motor is supported by these 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 temperature -20℃ ～+50℃ [-4°F～122°F]; Operation ambient humidity 15%RH～95%RH.
• Smarter Core Design: Engineered for minimal noise interference, our enhanced Nema 14 Round Stepper Motors 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.
• Important Notes: Increased speed reduces torque, with operation suggested at 0–600 RPM. A lower current leads to lower torque and temperature rise, and reduced voltage results in lower torque (recommended range: 12–24V DC). The 36mm Round Stepper Motor is used in 3D printers, DIY robots, CNC machines, and automation systems. Its compact size and high torque suit demanding applications.

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