EG Series Planetary Gearbox Gear Ratio 100:1 Backlash 20arc-min for Nema 42 Stepper Motor

This high-precision planetary gearbox is belong to EG series gearbox, it with gear ratio 100 : 1 and a maximum 20arc-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 19mm diameter shaft of Nema 42 stepper motor and brushless dc motor.

Gearbox Specifications

• Part Number: EG42-G100
• Gearbox Type: Spur Planetary
• Gear Material: Alloy Steel
• Gear Ratio: 100:1
• Efficiency: 90%
• Rotor Inertia: 0.44kg·cm²
• Backlash at No-load: <= 20arcmin
• Max.Permissible Torque: 260Nm(36819.03lb-in)
• Moment Permissible Torque: 520Nm(73638.06lb-in)
• Noise: <= 70dB
• Waterproof Rating: IP54
• Lifetime: 20000hours

Physical Specifications

• Frame Size: 120 x 120mm
• Gearbox Length: 199mm
• Output Shaft Type: KeyWay
• Key Length: 40mm
• Output Shaft Diameter: Φ25mm
• Output Shaft Length: 55mm
• Input Shaft Diameter: Φ19mm
• Input Shaft Length: 60mm