MKS HBL550LX X5 Brushless Titanium Gear Low Profile High Voltage Digital Servo
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The MKS HBL550LX is a brushless titanium gear low-profile high-voltage digital servo with X5 spline output. Running on 3.7–7.4V, it delivers 222 oz/in at 7.4V with a 0.08 sec/60° transit speed in a slim 26.4mm height profile — ideal for applications where servo bay depth is limited, such as low-wing aircraft, F3A, and tight-fitting surface chassis.
The brushless motor eliminates brush wear for longer service life and consistent performance. Titanium alloy gears provide excellent strength-to-weight ratio and wear resistance. Dual ball bearings ensure smooth, consistent output shaft operation run after run.
Key Features
- Brushless motor for extended service life and consistent performance
- Titanium alloy gears for strength and wear resistance
- 222 oz/in stall torque at 7.4V
- 0.08 sec/60° transit speed at 7.4V
- 3.7–7.4V operating range
- Low profile 26.4mm height — fits tight servo bays
- Dual ball bearings (2BB)
- 40 x 20.5 x 26.4mm, 57.8g
Specifications
| Part Number | HBL550LX | |
| Operating Voltage | 3.7 – 7.4V DC | |
| Stall Torque (6.0V) | 180 oz/in | |
| Stall Torque (7.4V) | 222 oz/in | |
| Speed (6.0V) | 0.09 sec/60° | |
| Speed (7.4V) | 0.08 sec/60° | |
| Motor Type | Brushless Motor | |
| Gear Type | Titanium Alloy Gear | |
| Bearing Type | Dual Ball Bearings (2BB) | |
| Working Frequency | 1520μs / 333Hz | |
| Dead Band | 0.001ms (default) | |
| Dimensions | 40 x 20.5 x 26.4mm | |
| Weight | 57.8g | |
Compatibility
Ideal for low-wing aircraft, F3A, and surface RC applications requiring a low-profile high-voltage brushless servo. Verify receiver/ESC BEC voltage output and servo bay dimensions before purchasing.