The KDE Direct 7215XF-135 Multi-Rotor Brushless Motor is designed for use in multi-rotor and heavy-lift UAS platforms. It prioritizes efficiency, thermal management, and structural reliability, with a focus on reducing vibration during operation.

Key design features include:

1. Solid-core copper windings rated for continuous operation at 240C (340C maximum), allowing the motor to perform reliably in high-temperature environments.

2. 0.2 mm silicon-steel stator laminations manufactured in Japan, reinforced with Kevlar tie-wraps to support consistent performance and durability.

3. A triple-bearing system using ABEC-7 rated bearings to support long operating life with minimal maintenance.

The motor is intended for a range of flight applications where consistent output and reduced mechanical wear are important.

Specifications

Material: Neodymium N38UH

Models: Universal mounting pattern for multi-rotor and UAS applications:

• M4 x 35mm
• M4 x 40mm
• M5 x 40mm

Finish:

• Clear anodize, mirror-polish CNC gloss endbells
• Black electro-plate, CNC gloss central core (flux ring)

Compatible With:

• Replacement Shaft: KDE7215XF-SR
• Replacement Bearings: KDE72XF-BRK

Full Specifications:

• Kv (Motor Velocity Constant): 135 RPM/V
• Kt (Motor Torque Constant): 0.0707 Nm/A
• Km (Motor Constant): 0.2600 Nm/(W)
• Maximum Continuous Current*: 45 A (180 s)
• Maximum Continuous Power*: 2915 W (180 s)
• Voltage Range: 22.2 V (6S LiPo) – 60.9 V (14S LiHV)
• Io (@10V): 0.5 A
• Rm (Wind Resistance): 0.074
• Stator Poles: 24 (24S22P)
• Magnetic Poles: 22 (24S22P)
• Bearings: Triple, 6900-2RS/6000-2RS
• Mount Pattern: M4 x 35 mm, M5/M4 x 40 mm
• Stator Class: 7215, 0.2 mm Japanese
• Shaft Diameter: 10 mm (10 mm Internal)
• Shaft Length: 9.5 mm
• Motor Diameter: 80.8 mm
• Motor Rotor Inertia: 2.024 kg*cm
• Motor Length: 49.5 mm
• Motor Weight: 555 g (640 g with Wires/Bullets)
• Propeller Blade Size: Up to 30.5″-TP (24.5″-DP Max on 14S)
• Motor Advance Timing: 22 – 30
• Motor Drive Frequency: 16 – 32 kHz

In the Box

• 1x KDE Direct XF UAS M10 Propeller Bracket Assembly (Black Edition)
• 3x KDE Direct XF 4.0mm 24K Bullet Connectors (KDEXF-BC40,Female)
• 4x M5 x 0.8 x 8 mm Flat Head Phillips Head Machine Screws (Class 12.9)
• 4x M4 x 0.7 x 8 mm Flat Head Phillips Head Machine Screws (Class 12.9)
• 4x M3 x 0.5 x 14 mm Socket Head Cap Screws (Class 12.9)