The size of this gearbox is 57 x 57mm /60 x 60 mm and the input shaft diameter is 8mm. This high-precision planetary gearbox is belong to HPS series gearbox, it with gear ratio 3:1 / 4:1 / 5:1 / 6:1 / 7:1 / 10:1 / 16:1 / 20:1 / 24:1 / 30:1 /36:1 / 40:1 / 50:1 / 64:1 / 96:1 / 100:1 / 144:1 / 216:1 and a maximum 15arc-min / 30arc-min/ 50arc-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 23 24 stepper motor .

Gearbox Specifications:

• Model: PX57 Series

• Gearbox Type: Planetary Gearbox

• Gear Ratio:  3:1 / 4:1 / 5:1 / 6:1 / 7:1 / 10:1 / 16:1 / 20:1 / 24:1 / 30:1 /36:1 / 40:1 / 50:1 / 64:1 / 96:1 / 100:1 / 144:1 / 216:1

• Efficiency: 95% / 90%/ 85%

• Backlash: ≤15 arcmin / ≤30 arcmin/ ≤50 arcmin 

• Rated Torque: 15N.m / 30N.m / 40N.m

• MAX Torque: 25N.m / 40N.m / 50N.m

• Rated Input Speed: ≤3000rpm

• Average Life Span: 20000h

• Noise: ≤60dB / ≤65dB / ≤75dB

• Protection Level: iP65

Physical Specifications:

• Gearbox Length: 72mm / 86mm / 100mm

• Gearbox Shaft Diameter: Φ14mm

• Gearbox Shaft Length: 22mm

• Gearbox Key Length: 20mm

• PX57-L1 / L2 / L3 Weight: 0.90kg / 1.20kg / 1.40kg

PX57-L Series Common Planetary Gearbox Specification:

Planetary Gearbox Physical Specification: