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4.6 out of 5 Customer Rating

Firma 4000Kv Brushless Motor

Item No. SPMXSM1400
Brand Logo
4.6 out of 5 Customer Rating

Firma 4000Kv Brushless Motor

Item No. SPMXSM1400
$34.99
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Select Options
Connector: Gold Bullet Set, 4mm (3)
SPMXSM1400 DYNC0050
Connector: Gold Bullet Set, 4mm (3)
Next Shipment April 2021
$3.99
Connector: Gold Bullet Set, 4mm (10)
SPMXSM1400 DYNC0087
Connector: Gold Bullet Set, 4mm (10)
Next Shipment April 2021
$11.99
Connector: Gold Bullet Female, 4mm (30)
SPMXSM1400 EFLAEC514
Connector: Gold Bullet Female, 4mm (30)
Next Shipment June 2021
$19.99
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Product Details

Key Features
  • 4mm Gold Plated Bullet Connectors
  • Brushless Non-Sensored Design
  • 1/8" (3.175mm) Alloy Steel Output Shaft
In The Box
  • Firma 4000Kv Brushless Motor
Needed to Complete
  • 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 Specifications

Specs

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