Product Details

FANUC A06B-0117-B855#0049 is βiSR 0.2/6000 AC servo motor with straight shaft and built-in 24V holding brake, belonging to FANUC Beta iS servo series, specially designed for robot joint axes, compatible with matched FANUC servo amplifiers and LR Mate 200iD robot system. It adopts 200V three-phase AC power supply, rated power 0.12kW, rated speed 6000rpm, stall torque 0.23Nm, compact lightweight structure with only 0.7kg weight. The #0049 suffix represents robot dedicated encoder variant, optimized for joint closed-loop motion control. The integrated electromagnetic brake provides reliable static holding to prevent joint sagging when power is cut off. Its high-resolution serial encoder delivers fast and precise position feedback for high-frequency joint reciprocating motion. The straight shaft is directly assembled with robot reducer, no timing belt structure required. It is widely used for J5 and J6 joint axes of FANUC LR Mate 200iD small handling and assembly robots.

This servo motor integrates stator winding, ultra-low inertia rotor assembly, dedicated serial encoder and spring static holding brake inside compact aluminum housing. The encoder transmits high-precision angle feedback signals to servo amplifier to realize closed-loop position, speed and torque control. The built-in brake is power-release type, only for static joint holding instead of dynamic braking during robot movement. Two separate connectors are reserved at the rear for power cable and encoder cable, following FANUC standard pin definition for robot wiring and maintenance.

The front shaft sealing structure reaches IP40 protection grade, suitable for clean workshop environment of robot assembly and material handling. The internal bearing set uses long-life grease lubrication to support continuous ultra-high-speed cyclic joint movement. Its ultra-low rotor inertia ensures sensitive response for small robot joint teaching and fast pick-and-place action. Users can adjust servo gain and brake delay parameters on robot controller to match joint load characteristics and stable positioning requirement.

It serves as a direct replacement spare part for original #0049 coded βiSR robot servo motors suffering from bearing abnormal noise, encoder signal loss, brake slip and winding burnout. Every unit will pass winding insulation test, encoder position reading test, brake holding force verification and servo matching test before shipment, ensuring stable torque output and reliable static locking performance. Replacing this servo motor can restore high-speed and stable movement of robot 5th and 6th axes rapidly, avoid robot joint dropping and positioning deviation. It is widely deployed on FANUC LR Mate 200iD series handling robots and other small articulated robot joint applications.