MG Series Planetary Gearbox Gear Ratio 5:1 Backlash 30arc-min for 8mm Shaft Nema 23 Stepper Motor

This high-precision planetary gearbox is belong to MG series gearbox, with gear ratio 5:1 and a maximum 30arc-min backlash. Different with the EG series' steel gears, MG series' gears are made of powder metallurgy. It's an excellent choice for applications that require good accuracy but low cost.
This inline planetary gearbox built-in an input shaft coupling which can match standard 8mm diameter short shaft of Nema 23 stepper motor, brushless dc motor and brushed dc motor.
One of the matchable motor is 23HS30-2904S. For other motors, please contact our technical support to custom the motor shaft.

Gearbox Specifications

• Part Number: MG23-G5-D8
• Gearbox Type: Spur Planetary
• Gear Material: Powder Metallurgy
• Gear Ratio: 5:1
• Efficiency: 90%
• Rotor Inertia: 0.13kg·cm²
• Backlash at No-load: <=30arcmin
• Max.Permissible Torque: 25Nm(221.27lb-in)
• Moment.Permissible Torque: 50Nm(442.54lb-in)
• Noise: <=55dB(1000rpm)/65dB(3000rpm)
• Waterproof Rating: IP54
• Lifetime: 20000h

Physical Specifications

• Frame Size: 57 x 57mm
• Gearbox Length: 55.5mm
• Output Shaft Type: Key way
• Output Shaft Diameter: Φ14mm
• Output Shaft Length: 34mm
• Input Shaft Diameter: Φ8mm
• Matching Motor's Input Shaft Length: 8-14mm