Hitec RCD - HS-645MG Ultra Torque MG Ball Bearing Servo Electric Motors Ground CNC machined Steel Gear is

CNC machined Steel Gear is then Nitride Coated for increased wear resistance

Installation following the model manual

Steel Spur Gear 43 Tooth

CNC Aluminum shock bodies 7mm stainless steel shaft Air Damping Internal springs

Installment Comment HSF299x it had more area of gear mash to handle even more power then HSF299 (HSF299 are replace by HSF299X)

Hitec RCD - HS-645MG Ultra Torque MG Ball Bearing Servo Electric Motors Ground CNC machined Steel Gear isThe powerful HS 645MG is one of Hitecs most popular servos. Its the perfect choice for those larger sport planes or monster trucks and buggies requiring a durable high torque servo. Featuring our unique M P and metal gear train technology, the HS 645MG offers one of the strongest gear trains available in any servo. Motor Type: 3 Pole Bearing Type: Dual Ball Bearing Speed (4. 8V 6. 0V): 0. 24 0. 20 Torque oz. in. (4. 8V 6. 0V): 107 133 Torque kg. cm.