RS-550s Brushed DC Motor with 3.17mm diameter D-Shaft (9mm Long Shaft) Weight: ~7.7oz (218g) Body Length: 2.24in (57mm) Body Diameter: 1.46in (37.5mm) Operating Voltage: ~6v - 24v
Optimal Volt Range: 12v - 18v
18 Volt Nominal (Optimal Power, Speed, and Torque near 18 volts) Shaft Length ~0.35 inch / ~11/32in or ~9mm
Diameter ~0.125 inch / 1/8in or ~3.175mm
Style: Round
Stall Current: ~85A
Efficiency: ~70%
No Load RPM: ~20000 rpms
RPM Peak Efficiency: ~17000 rpms Designed as a Power Tool Drill motor and may replace motors in many 3/8in drills and other cordless and outdoor tools. Popular choice for DIY Electronics and Robotics, PowerWheels, and some Gate Openers. Will not work or fit in all models, be sure to check your specific application's requirements before purchasing PLEASE NOTE: If you're replacing a motor please be sure to verify the motor matches your dimensions and shaft length, style, and diameter before purchasing. Please contact the ProTechTrader directly with questions before purchasing. Model RS-550S 18v Shape of Motor Housing: Round Type of Motor: Carbon Brushes Construction: Anisotropic Magnet or Rare Earth Magnet Operating Voltage: ~6v - 24v No Load RPM: ~19300 No Load Current: ~1.2A Stall Torque: ~70.55oz-in (498.2mN-m) Efficiency: ~70% RPM Peak Efficiency: ~17250 Current Peak Efficiency: ~8-10A Dimensions Weight: ~7.7oz (218g) L: 2.24in (57mm) D: 1.46in (37mm) Mounting holes (2): M3 Mounting Holes: 25mm apart Shaft Diameter: 3.175mm (~1/8in) Shaft Style: "D" Shaft Length: 8.2mm Motor Body Diameter: 35mm-37mm Motor Body Length: 57mm Weight: 7.8oz Designed as a Power Tool / Drill motor and may replace motors in many 3/8in drills and other cordless outdoor tools. As well as a popular choice for DIY Electronics and Robotics, PowerWheels, Gate Openers, and More. ***PLEASE NOTE: Will not work or fit in all models, be sure to check your specific applications requirements before purchasing If your replacing a motor please be sure to verify the motor matches your dimensions and shaft length and diameter before purchasing.