Futaba BLS551 Brushless Low Profile Digital Servo

Modulation: Digital
Torque: 4.8V: 102.0 oz-in (7.34 kg-cm)
6.0V: 128.0 oz-in (9.22 kg-cm)
Speed: 4.8V: 0.13 sec/60°
6.0V: 0.10 sec/60°
Weight: 1.55 oz (44.0 g)
Dimensions: Length:1.61 in (40.9 mm)
Width:0.79 in (20.1 mm)
Height:0.98 in (24.9 mm)
Motor Type: Brushless
Gear Type: Metal
Rotation/Support: Dual Bearings