This high-precision planetary gearbox is with gear ratio 20:1 and a maximum 20 arc-min backlash. It's an excellent choice for applications that require good accuracy and reliability at an exceptional value. This inline planetary gearbox built-in an input shaft coupling which can match any standard Nema 34 stepper motor and brushless dc motor.

Gearbox Specifications

*Manufacturer Part Number: EG34-G20
*Gearbox Type: Planetary
*Gear Ratio: 20: 1
*Efficiency: 94%
*Backlash at No-load: ≤20 arcmin

*Max.Permissible Torque: 90 Nm(796.57 lb-in) *Moment Permissible Torque: 180 Nm(1593.13 lb-in)
*Noise: ≤60dB
*Waterproof Rating: IP54
*Lifetime: 20000 hours

Physical Specifications

*Frame Size: 90 x 90 mm
*Gearbox Length: 132 mm
*Output Shaft Type: Key way
*Output Shaft Diameter: Φ20 mm
*Output Shaft Length: 40 mm
*Input Shaft Diameter: Φ19 mm(By default, we offer a free shaft sleeve with 14mm diameter)
*Input Shaft Length: 30-40 mm