This is the Hitec D980TW D-Series Titanium Servo.
The titanium D-980TW is part of the Hitec D-Series dynamo servo line. All Hitec D-Series servos have been designed using brand new, cutting edge, custom engineering. Combining industry leading high-resolution, state-of-the-art ultra-response technology with a 32-bit MCU and 12-bit ADC for unprecedented programmability and flexibility, these servos deliver significantly smoother movement. The speedy, powerful line operates on a wide 4.8 ~ 8.4 voltage range, allowing use with any common battery chemistry without the need for adapters or regulators. Featuring Hitec’s industry standard 25-tooth output spline with 3mm hex screw, each D-Series servo brings monster performance never known before in the market.
Note: Programmable features require Hitec Servo Programmer sold separately HFP-30 and DPC-11
A note on Coreless motors: conventional servo motors have a steel core armature wrapped with wire that spins inside the magnets. In a Coreless design, the armature uses a thin wire mesh that forms a cup that spins around the outside of the magnet eliminating the heavy steel core. This design results in smoother operation and faster response time.
Size Category: Standard
Torque: 361 oz-ini @ 4.8v, 500 oz-in @ 6.0v, 611 oz-in @ 7.4v
Speed: 0.28 @ 4.8v, 0.21 @ 6.0v, 0.14 @ 7.4v
Dimensions (WxLxH): 1.72 x 0.88 x 1.57 in (43.7 x 22.4 x 39.9 mm)
Bushing Or Bearing: Bearing
Gear Type: Metal
Gear Material: Titanium