1、The motor has a built-in high resolution Hall effect encoder for precise motor control. 2、Based on user feedback and specifically designed to withstand the pressure of intense robotic competition, this is our strongest fristtool motor so far. 3、For TorqueNADO, it is suitable for fristtool Maximum DC motor mounts and fits for TETRIX PRIME. 4、The body is made of steel with a plastic encoder housing for long life. 5、Fits for Tetrixrobotics and for Pitsco robot parts. 6、Meet the parts requirements of the FTC robot competition. 1 x Motor Item Type: Encoder MotorOverall Length: Approx. 134.1mm / 5.28inMaximum Diameter: Approx. 37mm / 1.5inBody Material: Steel with plastic encoder housingMotor Weight: 324 g / 11.4 oz(approx.)Output Shaft Diameter: 6 mm with 0.5 mm deep flatOutput Shaft Style: D shaftOutput Shaft Length: Approx. 26mm / 1inGear Ratio: 60:1Gear Material: All steelGear Box Style: Spur No-Load Speed: 100 rpmVoltage (nominal): 12V DCStall Torsion: 700 oz-in.Motor Type: DC brushedElectrical Connection: Powerpoles for motor 4-pin encoder connector Encoder Voltage: 3.3/5 volts DCEncoder Type: Hall effectCountable Events per Revolution: 1440