Current / Phase:17APhase:2Couple Celebration:4000Step Angle (Degrees):18Type:HybridModel Number:17HS4401S-PG518Part number:17HS4401S-PG518 Ratio:518:1Manufacturer Part Number 17HS4401S-PG518Bipolar Motor Type step by stepStep angle (with gearbox) 18 PAR 168NmNominal current / phase 168A165 ohm phaseRecommended voltage 12-24 VInductance 32mH +/- 20% (1 KHz)Planetary type gearbox ratio (exact ratio) 5 + 2/11Efficiency 90%Backlash without load less than equal 1 Maximum torque 2 nm (283ozin)Permissible torque of 4Nm (566ozin)Max Axial Load Axle 50NMaximum radial load shaft 100Ncolour:blackMaterial:metalPackage Contents:1* motor1* lineOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.