HALL ENCODER FEEDBACK: Features A/B dual-phase hall encoder with 11 PPR output per phase for real-time, accurate speed monitoring with no lost pulses. HIGH TORQUE OUTPUT: Delivers up to 21 KG.CM of torque, making it well-suited for demanding forward and reverse applications requiring reliable power. FULL METAL GEAR CONSTRUCTION: All-metal gears are crafted from high-quality materials for increased torque transfer, corrosion resistance, and efficient heat dissipation. D-SHAPED OUTPUT SHAFT: The precision-milled D-shaped shaft increases friction contact, ensuring stable transmission and easy connection to driven components. PURE COPPER COIL WINDING: One-time formed rotors wound with 100% pure copper wire deliver excellent electrical conductivity, high temperature resistance, and long service life.