Power HD HD-4180BB - Digital Large Servo

Specifications

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

Last Updated:	2025-08-11
Modulation:	Digital
Torque:	6.0V: 57.00 oz-in (4.10 kg-cm)
Speed:	6.0V: 0.17 sec/60°
Weight:	1.45 oz (41.0 g)
Dimensions:	Length:1.60 in (40.6 mm) Width:0.79 in (20.1 mm) Height:1.46 in (37.1 mm)
Motor Type:	3-pole
Gear Type:	(add)
Rotation/Support:	Dual Bearings
Rotational Range:	(add)
Pulse Cycle:	(add)
Pulse Width:	(add)
Connector Type:	(add)

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The Power HD HD-4180BB is a high-quality standard-sized analog servo that is distinguished by its exceptionally smooth operation and precise centering, thanks to a premium ball bearing (BB) on the output shaft. While offering a solid, well-balanced performance profile, the HD-4180BB is aimed at the hobbyist who values a more refined feel from their controls. It is a superb choice for the flight controls on a scale aircraft, where smooth, proportional movements are key to a realistic appearance in the air. It is also an excellent steering servo for on-road touring cars, where its precision and smooth transit contribute to carving clean, consistent lines through corners. The essence of this servo is its refined control feel; it utilizes a higher-quality gear set and electronics to provide a level of smoothness that is a clear step above more basic standard servos.
In robotics, the HD-4180BB is a great choice for applications where smooth and quiet operation is desirable, such as a camera pan-and-tilt system for videography, where jerky movements would ruin a shot.