1、Programmable: This RC servo is equipped with a programmable PWM digital amplifier and a 32 bit MCU with a 14 bit magnetic encoder. 2、High Accuracy: This servo steering gear is equipped with high accuracy helical gears, and the wide working voltage is DC 6‑8.4V. 3、Double Ball Bearings: This super torque RC servo adopts double ball bearings to support the output shaft, which is powerful. 4、Heat Dissipation: Diamond cut aluminum shell can effectively dissipate heat, ensure good performance and long service life. 5、IP67 Waterproof: Premium coreless RC servo adopts IP67 waterproof shell, which is not afraid of getting wet in rainy days. Item Type: RC Coreless Servo Material: Aluminum Alloy Gross Weight: 118g / 4.2oz Color: Black Product Size: Approx.40 x 20 x 38mm / 1.6 x 0.8 x 1.5in Operating Speed: 0.13 seconds/60 degrees at 6.0V 0.10 seconds/60 degrees at 7.4V 0.09 seconds/60 degrees at 8.4V Stall Torque: 36.0kg cm at 6.0V 42.0kg cm at 7.4V 48.0kg cm at 8.4V Pulse Width: 500-2500usec Deadband: 2usec Application: RC car, robot, mechanical arm, etc 1 x Servo 1 x Metal Servo Arm 2 x Plastic Servo Arm 4 x Screw Cartridge 4 x Rubber Pad 6 x Screw