Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

T-Motor U7 – 420KV Brushless Motor

$129.99 $99.00

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SKU: MT603020146040185 Category: Brand:


T-Motor U-Power U7 KV420 is a high-performance brushless motor specifically designed for professional use on multi-rotor aircraft such as hexacopters and octocopters, especially where high power is required, and in dirt contaminated environments, wet-weather, and extreme climate conditions.

U-series motors feature extra-large bearings made in Germany, and a patented self-cooling system to enhance airflow through the motor. These motors are waterproof, and dirt resistant. MTBF (Mean Time Between Failure) is 160 hours, over 2.5 times competing motors.

With epoxy-coated silicon-steel 0.2mm stator laminations for low eddy current loss, oxygen-free copper windings for low resistance, and N45UH high-temperature Neodymium magnets, U-series motors are highly efficient and can maintain good performance even up to 180° C.

This U7 420KV motor is recommended for use with 6S to 8S LiPo and 15×5 to 18×6.1 props. This motor can power Hexacopters of 18-kg total takeoff weight, or Octocopters of 24-kg. Recommended ESC is T-Motor T80A.


  • KV – 420
  • Configu-ration – 12N14P
  • Shaft Diameter – 6mm
  • Motor Dimension(Dia.*Len) – Φ60.7×39.5mm
  • Weight(g) – 255g
  • ldle current(10)@10v(A) – 0.9A
  • No.of Cells(Lipo) – 3-8S
  • Max Continuous current(A)180S – 40A
  • Max Continuous Power(W)180S – 1180W
  • Max. efficiency current – (10-21A)>83%
  • internal resistance – 33mΩ

Additional information

Weight 0.99 lbs
Dimensions 6 × 6 × 6 in
KV- RPM Per Volt

420 KV

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  1. One person found this helpful

    Rated 5 out of 5
    Great product

    glengieser (verified owner)

    Excellent condition, as advertised, and delivered on time

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