This is the HS-77BB Low Profile Ball Bearing Servo from Hitec. With its low profile design and strong standing torque the HS-77BB is a great choice for wing or tail mounting in aircrafts up to 1.20 size. Submarines, boats, cars and trucks can also benefit from this servo’s strength and compact size.
Transit time: 0.18 sec/ 60 deg. @ 4.8V (0.14 sec/deg @ 6V)
Torque: 61.1 oz/in @ 4.8V (76.3 oz/in @ 6V)
Weight: 35.0g (1.23 oz)
Length: 44.3mm (1.73")
Width: 23.7mm (0.90")
Height: 25.9mm (0.98")