The 55KG ultra-high torque A86BHMW programmable waterproof servo adopts the CNC heat sink and heightened shell design, which can prevent the servo from getting hot during operation, so as to achieve the effect of rapid heat dissipation. It is a good choice for large size 1/10 1/8 scale monster trucks, crawlers, off-road vehicles, large rc planes, racing boats. In addition, it also has dustproof and IP67 waterproof function, which is very suitable for rainy, humid, snowy and other harsh weather environments. Under the close cooperation of high-precision reinforced steel gears and reinforced shafts, the anti-collision performance is improved. Reliable and silky three bearings and long-life brushless motor keep the servo in smooth working condition. By the way, this servo is available in three colors: black, red, and purple.

Feature 

Ultra Light Unique Design With Heat Sink Machining

Slightly Taller Case Design with Two Colors Oxidation

High Precision Magnetic Angle Sensor

Waterproof Up to IP67 Grade

Strengthen High Chrome Steel Shaft

Extremely Strong Patent Steel Gears

Super Smooth Three Ball Bearings

Long Lifespan Brushless Motor

Programmable Digital Circuit

Ideal for Giant Scale Aircraft, Monster Truck, and 1/8 1/10 Scale On Road, Off road, Truck, Boat, Airplane, Helicopter, Robot and engine etc.

Upgrade Traxxas X-maxx with A86BHMW: https://www.youtube.com/watch?v=pgE-UDUKCWQ&t=84s

Specification

Item: A86BHMW

Operating Voltage: 4.8-8.4V

Operating speed: 0.142sec/60° @ 6.0V

Operating speed: 0.125sec/60° @ 7.4V 

Operating speed: 0.110sec/60° @ 8.4V 

Stall Torque: 40 kg-cm (556 oz-in) @ 6.0V

Stall Torque: 49 kg-cm (681 oz-in) @ 7.4V

Stall Torque: 55 kg-cm (765 oz-in) @ 8.4V 

Gear: Steel

Motor: BLS

Size: 40*20*41.5mm (1.57 x 0.78 x 1.63 in)

Weight: 88.5g 

Connector Wire: TYU 300 mm