Firma 4000Kv Brushless Motor

Item No. SPMXSM1400
4.6 out of 5 Customer Rating
$44.99
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Firma 4000Kv Brushless Motor

4mm Gold Plated Bullet Connectors

Brushless Non-Sensored Design

1/8" (3.175mm) Alloy Steel Output Shaft

85A ESC

Features

  • Excellent upgrade for 540- and 550-size brushed motors with the same diameter and mounting pattern (vehicle must accept pinions with a 1/8" bore)
  • High-quality 4-pole sintered rotor
  • 4mm gold plated bullet connectors
  • High-quality construction with precision ball bearings and hardened steel 1/8" shaft

Overview

The Firma 4000Kv brushless motor is a great choice for 1/10 scale 4WD, 2WD, and on-road models running on 2S LiPo power. Featuring a low cog 4-pole 8-magnet rotor design, CNC machined aluminum housing, insulated high purity copper windings, high-quality alloy steel 3.175mm (1/8") output shaft, and precision bearings for high durability and smooth rotation. Preinstalled 4mm gold plated bullet connectors for easy installation, and perfectly matched for the Firma 85A Smart ESC.

PRODUCT SPECS

Motor Design
Inrunner
Input Voltage
6 - 8.4V
RPM/Volt (Kv)
4000Kv
Maximum Continuous Current
40A
Motor Type
Brushless - Sensorless
Application
1/10 scale 4WD, 2WD, and on-road models running on 2S LiPo power
Number of Poles
4
Product Weight
7.4oz (210g)
Shaft Diameter
0.125" (3 mm)
Bushing Or Bearing
Bearing
Connector Type
4mm Bullet
Efficiency
81%
Motor Size
3652