The size of this gearbox is 35 x 35 mm and the input shaft diameter is 5 mm. This high-precision planetary gearbox is belong to HPR series gearbox, it with gear ratio 3:1 / 4:1 / 5:1 / 7:1 / 9:1 / 15:1 / 20:1 / 25:1 / 30:1 / 35:1 / 42:1 / 45:1 / 100:1 / 120:1 / 140:1 / 150:1 / 175:1 / 210:1 and a maximum 15arc-min / 25arc-min / 25arc-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 14 stepper motor .

Gearbox Specifications:

• Model: HPR35 Series

• Gearbox Type: Planetary Gearbox

• Gear Ratio: 3:1 / 4:1 / 5:1 / 7:1 / 9:1 / 15:1 / 20:1 / 25:1 / 30:1 / 35:1 / 42:1 / 45:1 / 100:1 / 120:1 / 140:1 / 150:1 / 175:1 / 210:1

• Efficiency: 96% / 94%/ 90%

• Backlash: ≤15 arcmin / ≤25 arcmin/ ≤25 arcmin 

• Rated Torque: 5N.m- 10N.m

• Sundden Stop Torque: 10N.m- 20N.m

• Rated Input Speed: 1000rpm

• Max Input Speed: 2000rpm
  

• Average Life Span: 20000h

• Noise: ≤55dB 

• Protection Level: IP54

Physical Specifications:

• Gearbox Length: 60mm / 69.5mm / 79mm

• Gearbox Shaft Diameter: Φ8mm

• Gearbox Shaft Length: 20mm

• Gearbox Key Length: 12mm

• HPR35-L1 / L2 / L3 Weight: 0.17kg / 0.22kg / 0.28kg

HPR35 Series Common Planetary Gearbox Specification: