Features 1、Reliable and Practical: The torsion of 550 brush motor is mostly used in climbing car, etc. which has strong magnetic force, low heat generation and high power 2、Scope of Application: Waterproof brushed motor is used for direct welding wiring guidance and provides flexible welding options 3、3 Slot: 3 slot straight rotor can realize maximum energy conversion. Accurate balance and smoothness of rotor improve reliability and maximum speed 4、Copper Winding: High purity copper winding maximizes efficiency. High strength magnet can realize the performance of brush engine 5、Durable Material: 550 brushed motor is made of iron and copper, with waterproof iron shell, and the external replaceable carbon brush can be reused Item Type: 550 Brushed Motor Material: Iron, Copper Colour: Silver Speed: ±10%rpm (tested after 1 minute of operation) Product Length: Approx. 50mm/2.0in (without shaft and carbon brush) Product Diameter: Approx.35.5mm/1.4in Product Shaft Diameter: Approx.3.175mm/0.1in Suitable For: For Traxxas Slash TRX4 TRX6 G63 etc. Package List 1 x 550 Brushed Motor