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$56.99
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