Servo Specifications and Reviews
| Make | Model | Modulation | Weight | Dimensions (L×W×H) |
Torque | Speed | Motor Type |
Rotation | Gear Material |
Typical Price |
Compare |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Futaba | S9451 | Digital | 1.98 oz | 1.58×0.79×1.42 in |
4.8V 97.0 oz-in 6.0V 111.0 oz-in |
4.8V 0.13 s/60° 6.0V 0.10 s/60° |
Coreless | Dual Bearings | Metal | $69.97 | |
| Futaba | BLS156HV | Digital | 2.33 oz | 1.58×0.79×1.45 in |
6.0V 250.0 oz-in 7.4V 291.7 oz-in |
6.0V 0.15 s/60° 7.4V 0.12 s/60° |
Brushless | Dual Bearings | Metal | $115.00 | |
| Futaba | BLS255HV | Digital | 2.12 oz | 1.58×0.79×1.45 in |
6.0V 147.2 oz-in 7.4V 166.7 oz-in |
6.0V 0.10 s/60° 7.4V 0.08 s/60° |
Brushless | Dual Bearings | Plastic | (add) | |
| Futaba | BLS256HV | Digital | 2.15 oz | 1.58×0.79×1.45 in |
6.0V 61.1 oz-in 7.4V 69.5 oz-in |
6.0V 0.06 s/60° 7.4V 0.05 s/60° |
Brushless | Dual Bearings | Plastic | (add) | |
| Futaba | S9072SB | Digital | 2.01 oz | 1.58×0.79×1.44 in |
4.8V 97.0 oz-in 6.0V 121.0 oz-in |
4.8V 0.12 s/60° 6.0V 0.10 s/60° |
Coreless | Dual Bearings | Plastic | (add) | |
| Futaba | S9074SB | Digital | 2.22 oz | 1.58×0.79×1.44 in |
6.0V 278.0 oz-in |
6.0V 0.17 s/60° |
Brushless | Dual Bearings | Metal | $124.00 | |
| Futaba | BLS171HV | Digital | 1.66 oz | 1.58×0.79×1.37 in |
7.4V 164.0 oz-in |
7.4V 0.10 s/60° |
Brushless | Dual Bearings | Hybrid | (add) | |
| Futaba | BLS175HV | Digital | 2.33 oz | 1.58×0.79×1.46 in |
7.4V 292.0 oz-in |
7.4V 0.12 s/60° |
Brushless | Dual Bearings | Metal | $139.00 | |
| Futaba | BLS272HV | Digital | 2.12 oz | 1.58×0.79×1.46 in |
7.4V 167.0 oz-in |
7.4V 0.08 s/60° |
Brushless | Dual Bearings | Metal | $95.00 | |
| Futaba | S3051HV | Digital | 1.73 oz | 1.58×0.79×1.50 in |
6.0V 132.0 oz-in 7.4V 145.8 oz-in |
6.0V 0.21 s/60° 7.4V 0.17 s/60° |
Coreless | Dual Bearings | Metal | $40.00 | |
| Futaba | BLS171SV | Digital | 1.69 oz | 1.58×0.79×1.38 in |
6.0V 133.0 oz-in 7.4V 164.0 oz-in 6.6V 147.0 oz-in |
6.0V 0.13 s/60° 7.4V 0.10 s/60° 6.6V 0.11 s/60° |
Brushless | Dual Bearings | Metal | $149.99 | |
| Futaba | BLS175SV | Digital | 2.33 oz | 1.58×0.79×1.46 in |
6.0V 250.0 oz-in 7.4V 292.0 oz-in 6.6V 270.0 oz-in |
6.0V 0.15 s/60° 7.4V 0.12 s/60° 6.6V 0.13 s/60° |
Brushless | Dual Bearings | Metal | $169.99 | |
| Futaba | BLS251SB | Digital | 2.12 oz | 1.58×0.79×1.46 in |
4.8V 53.0 oz-in |
4.8V 0.06 s/60° |
Brushless | Dual Bearings | Metal | $169.99 | |
| Futaba | BLS272SV | Digital | 2.12 oz | 1.58×0.79×1.46 in |
6.0V 147.0 oz-in 7.4V 167.0 oz-in 6.6V 156.0 oz-in |
6.0V 0.10 s/60° 7.4V 0.08 s/60° 6.6V 0.09 s/60° |
Brushless | Dual Bearings | Metal | $169.99 | |
| Futaba | BLS274SV | Digital | 1.87 oz | 1.58×0.79×1.46 in |
6.0V 56.0 oz-in 7.4V 70.0 oz-in 6.6V 61.0 oz-in |
6.0V 0.06 s/60° 7.4V 0.05 s/60° 6.6V 0.06 s/60° |
Brushless | Dual Bearings | Plastic | $154.99 | |
| Futaba | BLS276SV | Digital | 2.12 oz | 1.58×0.79×1.46 in |
6.0V 56.0 oz-in 7.4V 70.0 oz-in 6.6V 61.0 oz-in |
6.0V 0.06 s/60° 7.4V 0.05 s/60° 6.6V 0.06 s/60° |
Brushless | Dual Bearings | Metal | $194.99 | |
| Futaba | S3070HV | Digital | 1.73 oz | 1.58×0.79×1.50 in |
6.0V 72.0 oz-in 7.4V 90.0 oz-in 6.6V 81.0 oz-in |
6.0V 0.19 s/60° 7.4V 0.15 s/60° 6.6V 0.17 s/60° |
3-pole | Dual Bearings | Metal | $59.99 | |
| Futaba | S3071HV | Digital | 1.73 oz | 1.58×0.79×1.50 in |
6.0V 132.0 oz-in 7.4V 146.0 oz-in 6.6V 139.0 oz-in |
6.0V 0.21 s/60° 7.4V 0.17 s/60° 6.6V 0.19 s/60° |
3-pole | Dual Bearings | Metal | $54.99 | |
| Futaba | S3072HV | Digital | 1.48 oz | 1.58×0.79×1.50 in |
6.0V 72.0 oz-in 7.4V 90.0 oz-in 6.6V 81.0 oz-in |
6.0V 0.19 s/60° 7.4V 0.15 s/60° 6.6V 0.17 s/60° |
3-pole | Single Bearing | Plastic | $39.99 | |
| Futaba | S3470SV | Digital | 1.52 oz | 1.58×0.79×1.50 in |
6.0V 111.0 oz-in 7.4V 133.0 oz-in 6.6V 119.0 oz-in |
6.0V 0.14 s/60° 7.4V 0.12 s/60° 6.6V 0.13 s/60° |
3-pole | Dual Bearings | Metal | $59.99 | |
| Futaba | S9370SV | Digital | 2.15 oz | 1.58×0.79×1.46 in |
6.0V 192.0 oz-in 7.4V 233.0 oz-in 6.6V 208.0 oz-in |
6.0V 0.13 s/60° 7.4V 0.11 s/60° 6.6V 0.15 s/60° |
Coreless | Dual Bearings | Metal | $139.99 | |
| Futaba | S9470SV | Digital | 1.90 oz | 1.58×0.79×1.46 in |
6.0V 153.0 oz-in 7.4V 191.0 oz-in |
6.0V 0.11 s/60° 7.4V 0.09 s/60° |
Coreless | Dual Bearings | Metal | $99.99 | |
| Futaba | BLS371SV | Digital | 2.22 oz | 1.58×0.79×1.46 in |
4.8V 176.0 oz-in 6.0V 219.0 oz-in 7.4V 264.0 oz-in 6.6V 239.0 oz-in |
4.8V 0.16 s/60° 6.0V 0.13 s/60° 7.4V 0.10 s/60° 6.6V 0.12 s/60° |
Brushless | Dual Bearings | Metal | $159.99 | |
| Futaba | BLS471SV | Digital | 2.01 oz | 1.58×0.79×1.46 in |
4.8V 127.0 oz-in 6.0V 158.0 oz-in 7.4V 192.0 oz-in 6.6V 174.0 oz-in |
4.8V 0.11 s/60° 6.0V 0.09 s/60° 7.4V 0.07 s/60° 6.6V 0.08 s/60° |
Brushless | Dual Bearings | Metal | $139.99 | |
| Futaba | BLS571SV | Digital | 1.45 oz | 1.58×0.79×0.98 in |
4.8V 104.0 oz-in 6.0V 131.0 oz-in 7.4V 153.0 oz-in 6.6V 142.0 oz-in |
4.8V 0.13 s/60° 6.0V 0.10 s/60° 7.4V 0.08 s/60° 6.6V 0.09 s/60° |
Brushless | Dual Bearings | Metal | $159.99 |