1. Machined housing with four fan-style cooling holes to pump air into the engine when it is running. 2. There are threaded mounting holes at the rear with hole spacings of 16 mm and 19 mm respectively, suitable for a variety of application scenarios. 3. Specially designed neodymium iron boron magnets with a high-temperature rating for trouble-free operation. 4. The motor windings use high-temperature wires rated at 140 degrees Celsius (356 degrees Fahrenheit) to reduce the risk of the motor burning out. 5. The inner surface uses high-quality epoxy-coated stator laminations to prevent winding short circuits. The stator laminations used in this 5010 engine have a thickness of 0.20 mm. 6. All motors use high-quality components with protection and permanent lubrication to control the motor shaft. High-temperature adhesives are used to fix the stator windings to prevent them from shifting, being squeezed or short-circuited. 7. A 5010 750KV brushless motor suitable for multi-rotor aircraft, quadcopters and multi-axis equipment. 8. Kilovolt value (revolutions per volt): 750KV. 9. Spur teeth. 10. Electronic speed controller: 20 - 40A. 11. It works best when paired with a 14 - 16-inch propeller. 12. Engine size: 50 x 10 mm. 13. Shaft diameter: 4 mm. 14. Material: Metal. 15. Color: Silver + Black. 16. Package contents: 1 set of 5010 750KV brushless motor. 17. Only the above package contents are included, and no other products are included. 18. Note: Light and different monitors may cause the color of the item to vary slightly from the actual one. A measurement error of +/- 1 - 3 cm is allowed.