The Blue Bird BMS-125WV Plus + is the highest torque servo in the new Blue Bird BMS-125WV/126WV/127WV range of 11g servos. At 8.4V the BMS-125WV's torque is a massive 6.2 kg.cm. The speed is slightly compromised but is still 0.09 seconds per 60° of movement. It is suitable for all control surfaces on ligher F5J models and most gliders up to 4 m wingspan. At 10 mm thick it is suitable for mounting in small fuselages and thin wings and tails.
Blue Bird BMS-125WV Specifications |
Body dimensions |
23.2 mm wide x 10.0 mm thick x 23.0 mm high |
0.91" wide x 0.39" thick x 0.91" high |
Max dimensions |
32.0 mm wide x 10.0 mm thick x 25.0 mm high |
1.26" wide x 0.39" thick x 0.98" high |
Stall torque (3.7V) |
3.6 Kg.cm |
37 oz.in |
Stall torque (6V) |
5.5 Kg.cm |
60 oz.in |
Stall torque (8.4V) |
6.6 Kg.cm |
86 oz.in |
Weight |
11.3 g |
0.40 oz |
Lead length |
16 cm |
6.3 in |
Operating speed (3.7V) |
0.2 sec/60° |
Operating speed (6V) |
0.13 sec/60° |
Operating speed (8.4V) |
0.09 sec/60° |
Operating voltage |
3.5V to 8.4V |
Operating temperature |
0 to 40 °C |
Bearings |
Plain |
Gear material |
Metal alloy |
Case material |
Nylon |
Motor type |
Coreless DC motor |
Working frequency |
250 Hz |
Dead band/resolution |
2 µs |
Pulse width for ± 60º |
(L) 900 µs - (0°) 1520 µs- (R) 2100 µs |
Digital |
Yes |
Programmable |
No |
Position feedback |
Potentiometer |
Supplied accessories |
2 plastic output arms, 1 arm retaining screw, 4 mounting screws, Blue Bird sticker |
Optional accessories |
Ply Frame for Blue Bird BMS-125WV |
Specifications
Specifications
Torque At 3.7V |
3.6 kg-cm / 50.0 oz-in |
Torque At 6.0V |
5.5 kg-cm / 76.4 oz-in |
Torque At 7.4V |
6.6 kg-cm / 91.7 oz-in |
Torque At 8.4V |
7.1 kg-cm / 98.6 oz-in |
Speed At 3.7V |
0.20 sec / 60° |
Speed At 6.0V |
0.13 sec / 60° |
Speed At 7.4V |
0.10 sec / 60° |
Speed At 8.4V |
0.09 sec / 60° |
Power Supply
Operating Voltage Range |
3.6V ~ 8.4V DC ( 1-2S HV Li-Poly / 2S Li-Fe Compatible ) |
Application / Suitable |
3D EP Aircraft, F3K, F3P & DLG, HLG. |
Control Specification
Control System |
Digital Controller 12-Bits ( 4096 Steps ) Frequency:Up to 333Hz / Neutral:1500 or 1520us
|
Dead Band Width |
0.002ms ( 2us ) |
Frame Rate (Signal repeat rate) |
3ms ( Maximum ) |
Rotating Direction |
Clockwise / When Pulse Traveling 1500 ~ 2100u second |
Operating Travel |
90° (When 1100 ~ 1900 μ sec) |
Mechanical Specifications
Ball Bearing |
Dual |
Gear |
All Metal Gears |
Motor |
Coreless Motor |
Horn / Gear Spline |
25 Teeth |
Connected Cable Length |
150 mm ( 5.9 in ) |
Connected Housing |
Universal Connector |
Physical Specifications
Dimension (mm) |
23.2 x 10 x 23 mm / 0.91 x 0.39 x 0.90 in |
Weight (gram) |
11.0 ± 0.5 grams / 0.38 oz |
Product Picture / Dimension Sketch |
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