Airtronics/ Sanwa 94819 - Mini Digital FAST BB Servo

Specifications

Last Updated:	2024-08-23
Modulation:	Digital
Torque:	4.8V: 28.00 oz-in (2.02 kg-cm) 6.0V: 33.00 oz-in (2.38 kg-cm)
Speed:	4.8V: 0.08 sec/60° 6.0V: 0.07 sec/60°
Weight:	0.92 oz (26.0 g)
Dimensions:	Length:1.26 in (32.0 mm) Width:0.63 in (16.0 mm) Height:1.24 in (31.5 mm)
Motor Type:	3-pole
Gear Type:	Plastic
Rotation/Support:	Dual Bearings
Rotational Range:	(add)
Pulse Cycle:	3.7 ms
Pulse Width:	1000-2000 µs
Connector Type:	JR

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BasementEngineer

March 21, 2012

Rating:

Application(s): Used for tail rotor on 450 electric helicopter

Comments: The Airtronics 94819 fast BB servo appears to be *very* well-made, with two ball bearings supporting the output shaft and high-quality plastic gears that have no perceptible freeplay. The ball bearing races also have a snug fit on both the inside and outside diameters, giving no slop at all at the output arm. It is a quiet and smooth running servo, with no overshoot or jitter/chatter at all. Very nicely done by any stretch, but this servo is only 30 bucks from airtronics.net, plus five bucks shipping to my front door in Ontario, Canada! The 94819 gives excellent performance on my 450 electric heli tail rotor. The specs listed on this website are as published on the box, and dimensions are correct.