GearM1.25 1.25m Cnc Steel Helical Spur Gear Pinion 20t 20 Teeth 8mm 14mm 15mm 16mm 19mm Bore Size Toothed Gears
GearBox Differential Coupling Shaft Planetary Rack Helical Gear Bevel Worm Spur Gear Crown Pinion Plastic Timing Metal Solid Spiral