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 C...

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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: Round
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.

  • RS-550s Brushed DC Motor Weight: ~7.7oz (218g) Body Length: 2.24in (57mm) Body Diameter: 1.46in (37.5mm)
  • Operating Voltage: ~6v - 20v | 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 applications requirements before purchasing
  • PLEASE NOTE: If your replacing a motor please be sure to verify the motor matches your dimensions and shaft length and diameter before purchasing.
  • RS-550s Brushed DC Motor Weight: ~7.7oz (218g) Body Length: 2.24in (57mm) Body Diameter: 1.46in (37.5mm)
  • Operating Voltage: ~6v - 20v | 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 applications requirements before purchasing
  • PLEASE NOTE: If your replacing a motor please be sure to verify the motor matches your dimensions and shaft length and diameter before purchasing.

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