Spektrum RC Firma Sensorless Brushless Motor (4000Kv)

This is a Spektrum RC 4000Kv Firma Sensorless Brushless Motor. 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 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 130 Smart 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

Specifications:

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)

Wire Gauge: 12 AWG