YEJMKJ Ratio 20:1 Planetary Gearbox for Nema 17 Stepper Motor 42-66mm Backlash 20 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 = ₩1,475 (2026-07-25 기준)

상품 특징

• Specifications: Ratio 20:1 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 42-66mm (1.66-2.6in), 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.
• Characteristics: Nema 17 planetary gearbox, Backlash ≤ 20 arcmin, Efficiency 94%, Nominal output torque 12Nm (1699.34oz·in) , Moment permissible torque 24Nm (3398.69oz·in) , Nominal input speed 3000RPM, Max. input speed 6000RPM, Radial force 300N, Axial force 100N.
• Reliability Parameters: Engineered for precision and endurance, this Nema 17 planetary reducer meets the following critical specifications: Noise ≤65dB, Waterproof rating IP54, Working temperature -20℃ ～+150℃ [-4°F～302°F], Lifetime 20000H.
• Superior Performance: This planetary gear for Nema 17 is built to handle tough conditions with high torque capacity and exceptional endurance. Precision gears and robust housing contribute to quiet, efficient, and long-lasting performance, achieving up to 20,000 hours of operation.
• Application: Designed for projects where torque matters more than speed, this planetary gearbox delivers strong, steady power. From robotics to CNC equipment, it ensures smooth motion, accurate positioning, and reliable performance.

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