YEJMKJ Ratio 5:1 Planetary Gearbox for Nema 17 Stepper Motor 42-55mm Backlash 15 arcmin Input Shaft 25.5mm φ5mm Planetary Reducer for 42 Step Motor incl. 4 Screw 2 Plug 1 Key CNC 3D Printer DIY

아마존 달러(USD) 가격을 각 날짜의 환율로 원화 환산해 표시합니다. 현재 환율 $1 = ₩1,439 (2026-08-01 기준)

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• Specifications: Ratio 5:1 Planetary Gearbox for Nema 17 Stepper Motor Ø5mm-25mm/Ø22mm-3mm/F31mm-M3 (Compatible with shaft length s ranging from 22 to 25 mm), Body length 42-55mm (1.66-2.17in), Input shaft diameter Φ5 mm, Input shaft length 25.5mm, Output shaft diameter Φ8 mm, Output shaft length 21.5 mm, Installation hole distance 31mm, Weight 235g.
• Parameters: Nema 17 planetary gearbox, Backlash ≤ 15 arcmin, Efficiency 96%, Nominal output torque 9Nm (1274.51oz·in) , Moment permissible torque 18Nm (2549.01oz·in) , Nominal input speed 3000RPM, Max. input speed 6000RPM, Radial force 300N, Axial force 100N.
• Reliability Specifications: Operating smoothly and durably, this Nema 17 planetary reducer is designed with the following key performance and environmental specifications: Noise ≤65dB, Working temperature -20℃ ～+150℃ [-4°F～302°F], Waterproof rating IP54, Lifetime 20000H.
• High Performance: Engineered for demanding applications, this planetary gear for Nema 17 delivers strong torque output for reliable performance under heavy loads. Built with quality materials and precision-crafted gears, it offers long-lasting durability and consistent operation, with a service life of up to 20,000 hours. The optimized design reduces wear and ensures smooth, quiet performance — ideal for noise-sensitive environments.
• Application: This planetary gearbox is the perfect solution for applications requiring reduced rotational speed without compromising on torque. By efficiently converting motor speed into massive torque output, it enables stable, controlled motion for equipment such as CNC machines, robotics, 3D printers, and automated machinery. Whether you need precise positioning or smooth heavy-duty operation, it delivers consistent power with remarkable efficiency.

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