Product Details

FANUC A06B-0127-B077 is αi A6/2000 AC servo motor with tapered shaft with keyway and no built-in holding brake, belonging to FANUC Alpha i servo series, compatible with αi servo amplifiers and FANUC 0i-MF, 0i-MF Plus CNC systems. It adopts 200V three-phase AC power supply, rated power 1.0kW, rated speed 2000rpm, stall torque 6.0Nm. This variant is equipped with I64 incremental encoder, delivering stable high-resolution pulse feedback for closed-loop motion control. The tapered shaft with keyway is designed for rigid coupling connection with ball screw, which reduces transmission backlash and maintains stable torque output during heavy load milling and boring processes. It is widely matched on X/Y/Z main feed axes of vertical machining centers and mold CNC milling machines that pursue high rigidity and steady cutting performance.

This servo motor integrates stator winding, medium inertia rotor assembly and I64 serial incremental encoder inside aluminum housing. The encoder transmits high-precision angle feedback signals to servo amplifier to realize closed-loop position, speed and torque control. It adopts tapered keyed shaft for rigid coupling 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 medium-speed stable operation. Its medium rotor inertia brings excellent anti-vibration performance under heavy cutting conditions, suitable for precision mold processing and multi-cycle boring tasks. Users can adjust servo gain and soft limit parameters on CNC system to match heavy-load medium-speed feed and rigid coupling transmission characteristics.

It serves as a direct replacement spare part for original αi A6/2000 tapered keyed shaft 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 heavy-load stable feed axis motion rapidly, avoid machine shutdown caused by cutting interruption and positioning deviation. It is widely deployed in vertical machining centers, mold CNC milling equipment and other rigid-coupling CNC feed axis applications.