Product Details
In The Box
(1) Spektrum Firma 3660-3900kv Sensorless 1/10 Brushless Motor with 4mm Gold Plated Bullet Connectors
(1) Product Manual
Needed to Complete
Electronic Speed Control such as the Firma 130 Smart ESC
Overview
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
Product 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: Sensorless
Shaft Diameter: 0.2" (5 mm)