Description
Firma 3900Kv 4-pole Brushless Motor
Great choice for 1/10 Scale 4WD models looking for a high RPM motor upgrade running up to 3S * (12.6v) power. Low cog 4-pole rotor design, CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 5mm output shaft, and high-precision bearings for high durability and smooth rotation. Preinstalled with 4mm gold plated bullet connectors for easy installation. Perfectly matched for the Firma 130 Smart ESC.
*Will work with the 85A Firma ESC, but only for 2S power.
Features
- Perfect upgrade for brushed 540- and 550-size brushed motors with the same diameter and mounting pattern (vehicle must accept pinions with a 5mm bore)
- High-quality 4-pole sintered rotors
- Includes 4mm gold plated bullet connectors
- Precision ball bearings and hardened steel 5mm shaft
- SafeD-5 Pinion compatible
Specifications
- Application 1/10 Scale Surface
- Connector Type 4mm Bullet
- Constant Wattage 500-749W
- Input Voltage 2-3S/12.6V
- Integrated ESC No
- Kv Rating 3000Kv or more
- Maximum Continuous Current 45A
- Motor Class 1/10 Scale
- Motor Output Lead 4mm
- Motor Type Brushless
- Outer Diameter 1.4″ (36 mm)
- Product Length 2.35″ (60 mm)
- RPM/Volt (Kv) 3900Kv
- Sensor Type Sensordless
- Shaft Diameter 0.2″ (5 mm)
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