Tags: EMAX_520KV_Outrunner_Brushless_Motor_for_2_to_4kg_Airplane_Type_BL4020 

Features:

* High temperature and magnetic give the motor higher efficiency and extra power.
* Silicon steel lowers energy consumption.
* Motor is accurately CNC machined. This gives smoother and quieter running.
* Bearings are made of high temperature and high carbon steel.

Specifications:

Type: BL4020
No. Of cells: 5 to 7S Li-Poly
Max. efficiency: 86%
Max. efficiency current: 20 to 40A (>78%)
No load current / 10 V: 2.1 A
Current capacity: 41A / 60s
Dimensions: 41 x 20 mm
Shaft diameter: 8 mm
Weight: 248 g/ 8.75oz
Recommended model weight: 2 - 4 kg
Recommended prop without gearbox: 13x 8, 12 x 8

Includes/Requires:

Includes:
1 x brushless motor
1 x cross type motor mount
1 x prop adaptor