Discover XQ-Power Servos in Our eBay Store!

Shop Now
Blue Bird BMS-A900+
Low Profile

Blue Bird BMS-A900+

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-09
Identity
Brand Blue Bird
Category Hobby
Performance
Torque
8.4V 395.87 oz-in
7.4V 350.03 oz-in
6.0V 284.75 oz-in
Speed
8.4V 0.08 sec/60°
7.4V 0.09 sec/60°
6.0V 0.11 sec/60°
Physical
Weight 1.99 ozBelow Average
Dimensions L 1.606 in
W 0.827 in
H 1.00 in
Drivetrain
Motor Type Coreless
Gears Metal
Gear Spline/Teeth 25 T
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Neutral Position 1520 µs
Dead Band 1 µs
Refresh Rate 333 Hz
Control System PWM
Electrical & Environment
Operating Voltage 4.5–8.5 V
Power Source Ni-MH / Ni-CD / Li-Fe / Li-Po
Connectivity
Connector JR (Universal) estimate
Origin
Country of Origin Taiwan

Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Class Comparison

WeightBelow Average
Lighter than 26% of 251 Digital Low Profile servos

Performance Analysis

Shaft Power 4.79–9.15 W
Power Density6.889 W/in³
More power-dense than 83% of 215 Digital Low Profile servos
Torque Density5.0398 oz-in/g
Torque-to-Volume Ratio214.39 oz-in/in³
Speed-to-Weight0.16090 (1/sec·g)
Speed-Torque Trade-off31.32
Voltage Range Width4.0 V
Wider voltage range than 92% of 223 Digital Low Profile servos

Similar Active Servos

Reviews of Blue Bird BMS-A900+

Be the first to review!

Submit a review of Blue Bird BMS-A900+