SunnySky X3520 Brushless Motor 520KV
by SunnySky

Product Description
Elevate your RC planes, multirotors, and drones with the SunnySky X3520 Brushless Motor 520KV. Designed for maximum performance and reliability, this motor features a precision CNC-milled body that promotes efficient heat dissipation and reduces overall weight. Its robust 420 stainless steel shaft, imported from Japan and heat-treated for enhanced strength, resists bending and breaking even under high stress. The top and bottom caps are crafted from 6061-T6 aviation-grade aluminum, ensuring superior durability without adding unnecessary bulk. Hand-wound coils and Japanese NMB bearings deliver smooth, stable, and quiet operation while increasing continuous power output. Ideal for 4-6S LiPo setups, the X3520 offers exceptional efficiency, torque, and thrust—making it perfect for serious RC enthusiasts seeking top-tier performance.

Key Specifications

• Stator Diameter: 35mm
• Rotor Diameter: 42.5mm
• Stator Thickness: 20mm
• Shaft Diameter: 5mm
• No. of Stator Slots: 12
• No. of Rotor Poles: 14
• Body Length (Without Shaft): 45mm
• Body Length: 64mm
• Motor Kv: 520KV
• Max LiPo Cell: 4-6S
• No-load Current: 1.1A/10V
• ESC: 80-100A
• Motor Resistance: 30mΩ
• Recommended Props (inch): APC12×6, APC12×8, APC13×6.5, APC13×8, DXL14×8
• Max Continuous Current: 70A/30s
• Max Continuous Power: 1750W
• Weight: 207g