Key Features Low Profile, Strong Torque, and Precision Movement *** Note: This is a retract servo and only travels from one end to the other Overview With its low profile design, strong torque and precision movement, the HS-75BB is a great choice to move your retract gear in a realistic manner that you need. Note, this is a retract or âbang bangâ servo and only travels from one end to the other (180 degrees). If you require a proportional servo this size, use the Hitec HS-77BB (HRC31077S). Detailed Information Specifications: Speed: 0.45 sec/60 deg @ 4.8V; 0.34 sec/60 deg @ 6V at no load Bushing Or Bearing: Bearing Programmable: No Gear Type: Composite Servo Size Category: Specialty Bearing: Single Torque: 91.65 oz-in (6.6 kg-cm) @ 4.8V; 113.87 oz-in (8.2 kg-cm) @ 6V Deadband: 20 microsecond Servo Operating Voltage: 4.8 - 6.0V Servo Type: Analog Current Draw Idle: 1mA @ 4.8V; 1.6mA @ 6.0V Maximum Servo Torque: 100-199 oz-in Maximum Servo Speed: 0.200+ sec Band: 2.4GHz Receiver: Sold Separately Features: *** Note: This is a retract servo and only travels from one end to the other Low Profile, Strong Torque, and Precision Movement Shipping Dimensions: Depth : 2.50 in Width : 2.00 in