Product Details

FANUC A06B-0116-B203 is βiS B1/6000 AC servo motor with keyway shaft and no built-in holding brake, belonging to FANUC Beta iS servo series, compatible with βiS servo amplifiers and FANUC 0i-MF, 0i-MF Plus CNC systems. It adopts 200V three-phase AC power supply, rated power 0.5kW, rated speed 6000rpm, designed for ultra-high-speed operation and balanced dynamic response for medium-load positioning tasks. It is equipped with serial high-resolution encoder which transmits accurate position feedback for closed-loop control. The keyway shaft is made for timing belt and pulley connection, delivering consistent torque transfer and resisting slippage under light and medium milling loads. It is widely fitted on X/Y feed axes and fourth rotary axes of high-speed tapping centers and compact vertical machining centers.

This servo motor integrates stator winding, medium-low inertia rotor assembly and serial encoder inside red-capped aluminum housing. The encoder sends high-precision angle feedback signals to servo amplifier to realize closed-loop position, speed and torque control. It comes with keyway shaft matched with synchronous pulley for belt-driven mechanical layout. Without built-in brake, this unit cannot lock shaft position during power outage; external brake assembly must be installed if used on vertical Z-axis. Two separate connectors are reserved at the rear for power cable and encoder cable, following FANUC standard pin definition for convenient wiring and maintenance.

The front shaft sealing structure reaches IP65 protection grade, resisting coolant splashes, cutting oil mist and fine metal dust in CNC workshops. The internal bearing set uses long-life grease lubrication to support continuous ultra-high-speed cyclic operation. Its moderate-low rotor inertia supports rapid acceleration and deceleration, suitable for frequent short-stroke reciprocating movement and fast positioning. Users can adjust servo gain and soft limit parameters on CNC system to match medium-load ultra-high-speed feed and the elastic property of belt transmission.

It serves as a direct replacement spare part for original keyway shaft βiS B1/6000 servo motors suffering from bearing abnormal noise, encoder signal loss, shaft wear and winding burnout. Every unit will pass winding insulation test, encoder position reading test and servo amplifier matching test before shipment, ensuring stable torque output and precise positioning performance. Replacing this servo motor can restore medium-load ultra-high-speed feed axis motion rapidly, avoid machine shutdown caused by cutting interruption and positioning deviation. It is widely deployed in high-speed tapping machines, compact CNC milling equipment and other belt-driven CNC feed axis applications.