HiTec 32646W HS-646WP Water Proof Analog Servo (IP-67 Rated) Motor Type: 3 Pole Bearing Type: Dual Ball Bearing Speed (60V/74V): 020 / 017 Torque oz/in (60V/74V): 133 / 161 Torque kg/cm (60V/74V): 96 / 116 Size in": 165 x 083 x 157 Size in Millimeters: 418 x 210 x 400