Servo Specifications and Reviews
| Make | Model | Modulation | Weight | Dimensions (L×W×H) |
Torque | Speed | Motor Type |
Rotation | Gear Material |
Typical Price |
Compare |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Futaba | BLS151 | Digital | 1.59 oz (45.0 g) |
1.61×0.79×1.42 in (40.9×20.1×36.1 mm) |
4.8V 133.0 oz-in (9.6 kg-cm) |
4.8V 0.15 s/60° |
Brushless | (add) | (add) | $129.99 | |
| Futaba | BLS152 | Digital | 2.57 oz (73.0 g) |
1.59×0.83×1.51 in (40.4×21.1×38.4 mm) |
6.0V 430.6 oz-in (31.0 kg-cm) |
6.0V 0.14 s/60° |
Brushless | Dual Bearings | Metal | $179.99 | |
| Futaba | BLS153 | Digital | 0.92 oz (26.0 g) |
1.40×0.59×1.13 in (35.5×15.0×28.6 mm) |
4.8V 76.4 oz-in (5.5 kg-cm) 6.0V 97.2 oz-in (7.0 kg-cm) |
4.8V 0.15 s/60° 6.0V 0.12 s/60° |
Brushless | Dual Bearings | Plastic | $119.99 | |
| Futaba | BLS154 | Digital | 1.80 oz (51.0 g) |
1.89×1.10×0.98 in (48.0×27.9×24.9 mm) |
4.8V 111.0 oz-in (8.0 kg-cm) |
4.8V 0.13 s/60° |
Brushless | (add) | (add) | (add) | |
| Futaba | BLS155 | Digital | 2.26 oz (64.0 g) |
1.57×0.79×1.45 in (39.9×20.1×36.8 mm) |
4.8V 200.0 oz-in (14.4 kg-cm) 6.0V 250.0 oz-in (18.0 kg-cm) |
4.8V 0.19 s/60° 6.0V 0.15 s/60° |
Brushless | Dual Bearings | Metal | $129.00 | |
| Futaba | BLS156HV | Digital | 2.33 oz (66.0 g) |
1.58×0.79×1.45 in (40.0×20.0×36.8 mm) |
6.0V 250.0 oz-in (18.0 kg-cm) 7.4V 291.7 oz-in (21.0 kg-cm) |
6.0V 0.15 s/60° 7.4V 0.12 s/60° |
Brushless | Dual Bearings | Metal | $115.00 | |
| Futaba | BLS157HV | Digital | 2.72 oz (77.0 g) |
1.59×0.83×1.51 in (40.5×21.0×38.4 mm) |
6.0V 430.6 oz-in (31.0 kg-cm) 7.4V 513.9 oz-in (37.0 kg-cm) |
6.0V 0.14 s/60° 7.4V 0.11 s/60° |
Brushless | Dual Bearings | Hybrid | $138.00 | |
| Futaba | BLS171HV | Digital | 1.66 oz (47.0 g) |
1.58×0.79×1.37 in (40.0×20.0×34.8 mm) |
7.4V 164.0 oz-in (11.8 kg-cm) |
7.4V 0.10 s/60° |
Brushless | Dual Bearings | Hybrid | (add) | |
| Futaba | BLS171SV | Digital | 1.69 oz (48.0 g) |
1.58×0.79×1.38 in (40.0×20.0×35.0 mm) |
6.0V 133.0 oz-in (9.6 kg-cm) 6.6V 147.0 oz-in (10.6 kg-cm) 7.4V 164.0 oz-in (11.8 kg-cm) |
6.0V 0.13 s/60° 6.6V 0.11 s/60° 7.4V 0.10 s/60° |
Brushless | Dual Bearings | Metal | $149.99 | |
| Futaba | BLS172HV | Digital | 2.61 oz (74.0 g) |
1.61×0.83×1.50 in (41.0×21.0×38.0 mm) |
6.0V 472.2 oz-in (34.0 kg-cm) 7.4V 514.0 oz-in (37.0 kg-cm) |
6.0V 0.12 s/60° 7.4V 0.11 s/60° |
Brushless | Dual Bearings | Hybrid | $249.00 | |
| Futaba | BLS172SV | Digital | 2.61 oz (74.0 g) |
1.61×0.83×1.50 in (41.0×21.0×38.0 mm) |
6.0V 431.0 oz-in (31.0 kg-cm) 6.6V 472.0 oz-in (34.0 kg-cm) 7.4V 514.0 oz-in (37.0 kg-cm) |
6.0V 0.14 s/60° 6.6V 0.12 s/60° 7.4V 0.11 s/60° |
Brushless | Dual Bearings | Hybrid | $199.99 | |
| Futaba | BLS173SV | Digital | 0.99 oz (28.0 g) |
1.30×0.59×1.06 in (33.0×15.0×27.0 mm) |
6.0V 86.0 oz-in (6.2 kg-cm) 6.6V 94.0 oz-in (6.8 kg-cm) 7.4V 106.0 oz-in (7.6 kg-cm) |
6.0V 0.12 s/60° 6.6V 0.11 s/60° 7.4V 0.10 s/60° |
Brushless | Dual Bearings | Metal | $137.99 | |
| Futaba | BLS173SVi | Digital | 0.99 oz (28.0 g) |
1.30×0.59×1.06 in (33.0×15.0×27.0 mm) |
6.0V 86.0 oz-in (6.2 kg-cm) 6.6V 94.0 oz-in (6.8 kg-cm) 7.4V 106.0 oz-in (7.6 kg-cm) |
6.0V 0.12 s/60° 6.6V 0.11 s/60° 7.4V 0.10 s/60° |
Brushless | Dual Bearings | Metal | $139.99 | |
| Futaba | BLS174HV | Digital | 1.66 oz (47.0 g) |
1.87×1.06×1.00 in (47.5×27.0×25.4 mm) |
7.4V 133.0 oz-in (9.6 kg-cm) |
7.4V 0.09 s/60° |
Brushless | Dual Bearings | Plastic | (add) | |
| Futaba | BLS174SV | Digital | 1.87 oz (53.0 g) |
1.89×1.06×0.98 in (48.0×27.0×25.0 mm) |
6.0V 108.0 oz-in (7.8 kg-cm) 6.6V 122.0 oz-in (8.8 kg-cm) 7.4V 133.0 oz-in (9.6 kg-cm) |
6.0V 0.11 s/60° 6.6V 0.10 s/60° 7.4V 0.09 s/60° |
Brushless | Dual Bearings | Metal | $149.99 | |
| Futaba | BLS175HV | Digital | 2.33 oz (66.0 g) |
1.58×0.79×1.46 in (40.0×20.0×37.0 mm) |
7.4V 292.0 oz-in (21.0 kg-cm) |
7.4V 0.12 s/60° |
Brushless | Dual Bearings | Metal | $139.00 | |
| Futaba | BLS175SV | Digital | 2.33 oz (66.0 g) |
1.58×0.79×1.46 in (40.0×20.0×37.0 mm) |
6.0V 250.0 oz-in (18.0 kg-cm) 6.6V 270.0 oz-in (19.4 kg-cm) 7.4V 292.0 oz-in (21.0 kg-cm) |
6.0V 0.15 s/60° 6.6V 0.13 s/60° 7.4V 0.12 s/60° |
Brushless | Dual Bearings | Metal | $169.99 | |
| Futaba | BLS177SV | Digital | 2.79 oz (79.0 g) |
1.61×0.83×1.50 in (41.0×21.0×38.0 mm) |
6.0V 431.0 oz-in (31.0 kg-cm) 6.6V 472.0 oz-in (34.0 kg-cm) 7.4V 514.0 oz-in (37.0 kg-cm) |
6.0V 0.14 s/60° 6.6V 0.12 s/60° 7.4V 0.11 s/60° |
Brushless | Dual Bearings | Hybrid | $239.99 | |
| Futaba | BLS251 | Digital | 2.10 oz (59.5 g) |
1.57×0.79×1.45 in (39.9×20.1×36.8 mm) |
4.8V 53.0 oz-in (3.8 kg-cm) |
4.8V 0.06 s/60° |
Brushless | Dual Bearings | Metal | $149.99 | |
| Futaba | BLS251SB | Digital | 2.12 oz (60.0 g) |
1.58×0.79×1.46 in (40.0×20.0×37.0 mm) |
4.8V 53.0 oz-in (3.8 kg-cm) |
4.8V 0.06 s/60° |
Brushless | Dual Bearings | Metal | $169.99 | |
| Futaba | BLS252 | Digital | 2.05 oz (58.0 g) |
1.57×0.79×1.46 in (39.9×20.1×37.1 mm) |
4.8V 139.0 oz-in (10.0 kg-cm) 6.0V 175.0 oz-in (12.6 kg-cm) |
4.8V 0.16 s/60° 6.0V 0.13 s/60° |
Brushless | Dual Bearings | Metal | $149.99 | |
| Futaba | BLS253 | Digital | 2.05 oz (58.0 g) |
1.57×0.79×1.46 in (39.9×20.1×37.1 mm) |
4.8V 117.0 oz-in (8.4 kg-cm) 6.0V 147.0 oz-in (10.6 kg-cm) |
4.8V 0.13 s/60° 6.0V 0.10 s/60° |
Brushless | Dual Bearings | Metal | $149.99 | |
| Futaba | BLS254 | Digital | 1.80 oz (51.0 g) |
1.57×0.79×1.45 in (39.9×20.1×36.8 mm) |
4.8V 53.0 oz-in (3.8 kg-cm) |
4.8V 0.06 s/60° |
Brushless | Dual Bearings | (add) | $85.00 | |
| Futaba | BLS255HV | Digital | 2.12 oz (60.0 g) |
1.58×0.79×1.45 in (40.0×20.0×36.8 mm) |
6.0V 147.2 oz-in (10.6 kg-cm) 7.4V 166.7 oz-in (12.0 kg-cm) |
6.0V 0.10 s/60° 7.4V 0.08 s/60° |
Brushless | Dual Bearings | Plastic | (add) | |
| Futaba | BLS256HV | Digital | 2.15 oz (61.0 g) |
1.58×0.79×1.45 in (40.0×20.0×36.8 mm) |
6.0V 61.1 oz-in (4.4 kg-cm) 7.4V 69.5 oz-in (5.0 kg-cm) |
6.0V 0.06 s/60° 7.4V 0.05 s/60° |
Brushless | Dual Bearings | Plastic | (add) |