REELY kefkový motor MT550

For RC hobbyists building or upgrading 1/10 scale cars, boats, or aircraft, the REELY MT550 brushed motor delivers reliable power in a compact 550-size can. Its 3.17 mm shaft fits standard pinions, and M3 mounting holes with 25 mm spacing make installation straightforward.

Key specifications

• Motor type: Brushed DC motor
• Nominal voltage: 7.2 V
• Operating voltage range: 6–8.4 V
• No-load speed at 7.2 V: 16,000 RPM
• No-load current at 7.2 V: 1.2 A
• Max efficiency speed at 7.2 V: 13,000 RPM
• Max efficiency current at 7.2 V: 10 A
• Max efficiency: 70%
• Max output power: 70 W
• Max current (short term): 30 A
• Shaft diameter: 3.17 mm (1/8 inch)
• Motor diameter: 35.8 mm
• Motor body length: 50 mm
• Total length including shaft: 62.5 mm
• Mounting hole thread: M3
• Mounting hole spacing: 25 mm
• Bearings: Sintered bushings

Why choose it

The MT550 balances torque and speed for a wide range of RC models. Sintered bushings keep maintenance simple, and the standard dimensions ensure compatibility with many chassis and gearboxes.

Ideal use cases

• Replacement motor for 1/10 scale RC cars and trucks
• Power for RC boats and aircraft within the voltage range
• Upgrade for models originally equipped with 550-size brushed motors

Good to know

Match the motor with a suitable electronic speed controller (ESC) rated for at least 30 A peak current. Ensure your battery pack stays within 6–8.4 V for optimal performance and longevity.