Airtronics/ Sanwa 94772M - Digital Precision High Speed Servo

Specifications

Source: Most data comes from the manufacturer but some data is sourced from our loyal community.

Last Updated:	2025-08-03
Modulation:	(add)
Torque:	4.8V: 67.00 oz-in (4.82 kg-cm) 6.0V: 83.00 oz-in (5.98 kg-cm)
Speed:	4.8V: 0.11 sec/60° 6.0V: 0.09 sec/60°
Weight:	1.98 oz (56.1 g)
Dimensions:	Length:1.54 in (39.1 mm) Width:0.79 in (20.1 mm) Height:1.47 in (37.3 mm)
Motor Type:	3-pole
Gear Type:	Metal
Rotation/Support:	Dual Bearings
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The discontinued Airtronics 94772M, also known as the ERG-WG, is a premium digital servo that represents the pinnacle of performance for demanding racing applications. This 'Expert Racing Gear' servo is engineered with a single goal in mind: to provide the ultimate in speed, torque, and precision for competitive 1/8 scale off-road racing. At its core is a high-performance coreless motor that delivers a blistering transit time and instantaneous acceleration. This is paired with a rugged, all-metal gear train and dual ball bearings that provide a durable, slop-free, and exceptionally smooth drivetrain. The servo's most distinctive feature is its aluminum heat sink case, which is not just for show; it actively dissipates heat from the hardworking motor, ensuring that performance remains consistent and fade-free, even during long and grueling A-main events.
The 94772M's digital controller provides a high-resolution, high-frequency response that gives the driver a truly connected and locked-in feel to their vehicle. Its ability to hold its position with unwavering precision, combined with its impressive torque, makes it the ideal choice for the steering of 1/8 scale buggies and truggies, where it can effortlessly handle the immense forces generated during high-speed cornering and rough landings. For the competitive racer who refuses to compromise on performance, the Airtronics 94772M is the ultimate choice, a servo that is built to win.