650W 140KV 14-37S Waterproof Brushless DC Motor, IP28, Sensorless

Factory price IP68 waterproof outrunner brushless motor suit for underwater operating, which with rotation speed 140KV, max. load current 29.5A, input voltage 14-37V (powered by 4-10S batteries). Waterproof BLDC motor is special for underwater operation, which can be used as a water propeller.

Specification

Note: The motor is powered by 4-10S batteries, S is the number of batteries, voltage of every battery is 3.7V DC.

Dimensions (mm)

ESC (Electronic Speed Controller) Selection for Waterproof BLDC Motor

• The speed of the BLDC motor does not exceed the speed of ESC, it can be matched and used.
• Brushless DC motor speed calculation formula: battery voltage * motor KV value.
  Brushless DC motor stator speed calculation formula: motor KV value * battery voltage * motor pole pairs.
• The limit speed of V4 series ESC is 60000 ERPM.
  The limit speed of V6 series ESC is 15000 OERPM.
• If the maximum speed of BLDC motor exceeds the speed of the electric speed controller, the ESC can also be matched by reducing the working voltage of motor. But we do not recommend this, because it does not really play the role of a brushless DC motor.

ESC (Electronic Speed Controller) Specification

Note: The ESC model with * is the recommended controller for this page of motor, if you need other ESC models, please contact us.

Details

Tips: Can brushless dc motor work underwater?

Most BLDC motors are not waterproof as they are not required to operate in an environment. The waterproof material also limits the overall performance of the motor while increasing the cost. These costs are usually only valuable for specific applications, such as electric surfboards, submersible propellers, and other applications where the motor may come into contact with liquids.

Brushless.com Waterproof brushless DC motors work underwater. This is a common industry standard named after waterproofing. This is not a modified standard motor, but a true waterproof motor that will work well in deep water environments. Motors are equipped with redundant shaft seals, O-rings, sealed cable feed-throughs, pressure equalization and other waterproofing features. These design features keep the waterproof BLDC motor from failing even after prolonged exposure to water.