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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
$44.99
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Connector: Gold Bullet Set, 4mm (3)
SPMXSM1400 DYNC0050
Connector: Gold Bullet Set, 4mm (3)
In Stock
$5.99
Connector: Gold Bullet Set, 4mm (10)
SPMXSM1400 DYNC0087
Connector: Gold Bullet Set, 4mm (10)
In Stock
$13.99
Connector: Gold Bullet Female, 4mm (30)
SPMXSM1400 EFLAEC514
Connector: Gold Bullet Female, 4mm (30)
In Stock
$22.99
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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
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In The Box
  • Firma 4000Kv Brushless Motor
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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

Manufacturer # 605482715697
Motor Design Inrunner
Bushing Or Bearing Bearing
Maximum Continuous Current 40A
Motor Type Brushless
Input Voltage 6 - 8.4V
RPM/Volt (Kv) 4000Kv
Sensored No
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)
Connector Type 4mm Bullet
Efficiency 81%
Motor Class 1/10 Scale
Motor Size 3652