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STEPPERONLINE MGL Series Planetary Gearbox Gear Ratio 4:1 Backlash 30arc-min for 5mm Shaft Standard Nema 17 Stepper Motor

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$40.95

$ 21 .99 $21.99

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  • Motor Compatibility: Designed for standard Nema 17 motors featuring shaft length of 21.5-25mm
  • Performance Features: Achieves 90% efficiency with rotor inertia of 0.03kgcm and noise level under 55dB
  • Load Capacity: Supports maximum permissible torque of 9Nm with axial load of 100N and radial load of 300N
  • Physical Dimensions: Features 42 x 42mm frame size with 55mm gearbox length and 8mm output shaft diameter


The MGL series high-precision planetary gearboxes of the MGL series offers a gear ratio of 4:1 and a maximum backlash of 30arc-min. In contrast to the MG series, the MGL series is specially designed to support standard Nema 17 motors with standard shafts and therefore offers greater flexibility in the combination of motor and gearbox.
This in-line planetary gearbox is equipped with a built-in input shaft coupling that ensures compatibility with standard 5mm diameter shafts used in Nema 17 stepper motors, brushless DC motors and brushed DC motors.
Gearbox Specifications
*Part Number: MGL17-G4
*Gearbox Type: Spur Planetary
*Gear Material: Powder Metallurgy
*Gear Ratio: 4:1
*Efficiency: 90%
*Rotor Inertia: 0.03kg·cm²
*Backlash at No-load: ≤30arcmin
*Maximum Permissible Torque: 9Nm(79.66lb-in)
*Moment Permissible Torque: 18Nm(159.31lb-in)
*Shaft Maximum Axial Load: 100N
*Shaft Maximum Radial Load: 300N
*Noise: ≤55dB
*Waterproof Rating: IP54
*Lifetime: 20000hours
Physical Specifications
*Frame Size: 42 x 42mm
*Gearbox Length: 55mm
*Rated Input Speed: 1000rpm
*Maximum Input Speed: 2000rpm
*Output Shaft Type: KeyWay
*Output Shaft Diameter: φ8mm
*Output Shaft Length: 21.5mm
*Input Shaft Diameter: φ5mm
*Input Shaft Length: 21.5-25mm


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