51:1 Planetary Gearbox High Torque Nema 17 Stepper Motor Precision Camera DIY

Single unit 51:1 Planetary Gearbox NEMA 17 Stepper for precise DIY cameras
✔️ 50.9:1 planetary gearbox, 0.035 deg step angle, 4Nm torque, 1.68A

The 1 unit pack high torque NEMA 17 stepper with built-in planetary gearbox delivers precise motion for camera rigs, CNC, and automation projects. Ideal for compact setups with low speed and high torque requirements.

✅ Frame size: 42 x 42 mm
✅ Motor length: 48 mm
✅ Gearbox length: 42.7 mm
✅ Shaft diameter: 8 mm
✅ Shaft length: 20 mm
✅ Gearbox type: Planetary
✅ Gear ratio: 50.9:1
✅ Efficiency: 73%
✅ Backlash (no-load): <= 1 deg
✅ Maximum torque: 4 Nm (6000 g)
✅ Allowable torque: 6 Nm (950 oz)
✅ Maximum shaft axial load: 50 N
✅ Maximum shaft radial load: 100 N
✅ Weight: 620 g
✅ Lead length: 500 mm
✅ Connection: Black(A+), Green(A-), Red(B+), Blue(B-)
✅ Rated current per phase: 1.68 A
✅ Phase resistance: 1.65 ohms
✅ Inductance: 2.8 mH +/- 20% (1KHz)
✅ Part number: 17HS19-1684S-PG51

💡 What is a planetary gearbox used for with a NEMA 17 stepper?

Planetary gearboxes boost torque and control speed in compact layouts like camera rigs and small machines.

• Handy for camera focus rigs, pan tilt heads, and precise positioning
• Improves load handling without needing a larger motor
• Keeps overall system compact while delivering steady torque