Parts/Radio & control/Servos/MKS Servos HBL669 Brushless Titanium Gear High Speed Digital Tail Servo (High Voltage)
MKS Servos HBL669 Brushless Titanium Gear High Speed Digital Tail Servo (High Voltage)
MKS Servos

MKS Servos HBL669 Brushless Titanium Gear High Speed Digital Tail Servo (High Voltage)

Part # MKS-HBL6695.0(3)
Where to buy
$124.29
AMain Hobbies
Seen Oct 12, 2026
$124.29Buy
Prices are as last seen at the store; stock is not tracked.

About this part

This is the MKS HBL669 High Voltage Brushless Titanium Gear High Speed Digital Tail Servo, and is recommended for helicopter tail applications. The HBL line of servos has been designed exclusively for high voltage applications making them a great match with an unregulated 2S LiPo battery pack. In addition, the HBL series of servo's are lightning fast, extremely strong and operate with little noise.

Specifications:
Dead Band: 0.0005ms (Default)
Control System: +Pulse Width Control
Working Frequency: 760μs / 560hz
Operating Voltage: 4.0 ~ 8.4 V DC Volts
Operating Temperature Range: -10 to + 60 Degree C
Operating Speed (6V): 0.05 sec/60° degrees at no load
Operating Speed (7.4V): 0.04 sec/60° degrees at no load
Stall Torque (6V): 58.33 oz/in (4.2 kg-cm)
Stall Torque (7.4V): 70.82 oz/in (5.1 kg-cm)
360° Modifiable: NO
Motor Type: Brushless Motor
Potentiometer Drive: Indirect Drive
Bearing Type: Dual Ball Bearings
Gear Type: Chrome-Titanium alloy gear
Connector Wire Length: 24.0cm (9.4 in)
Dimensions: 40x20x40mm (1.57x0.79x1.50 in)
Weight: 63g (2.22 oz)

Reviews5.0 · 3 reviews

Kevin McGradyVerified owneron MKS Servos HBL669 Brushless Titanium Gear High Speed Digital Tail Servo (High Voltage)

One of the most inexpensive and reliable tail servos I’ve used!

Kenneth CooperVerified owneron MKS Servos HBL669 Brushless Titanium Gear High Speed Digital Tail Servo (High Voltage)

MKS makes a great servo. It is a super smooth tail servo. I put this on my Gaui X5, and what a difference from the stock servo. Super fast shipping thanks to AMain, 2 days. I would recommend amain and MKS servos. You get what you pay for.

Jon MillsVerified owneron MKS Servos HBL669 Brushless Titanium Gear High Speed Digital Tail Servo (High Voltage)

Great servo for the tail on any bird I have used them with great success!

What reviewers say

All three verified owners rate this high-voltage brushless titanium-gear tail servo 5/5. Reviewers describe it as reliable, smooth and fast, and one notes a clear improvement over a stock servo in a Gaui X5. Value for money is mentioned as good, and one reviewer praises the seller's fast shipping. Reviews are brief and come from a small sample, and none report problems or disagreement.

  • + Reliable performance
  • + Smooth tail operation
  • + Good value for price
  • + Clear upgrade over stock servo
Summary generated from the reviews above.

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