Product Details

FANUC A06B-0143-B075#7008 is αi A12/3000 AC servo motor with straight keyway shaft 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 2.8kW, rated speed 3000rpm, stall torque 12Nm. The #7008 suffix represents standard straight keyed shaft configuration, widely used for overseas machine retrofit and spare replacement. It is equipped with A64 multi-turn absolute serial encoder, which retains coordinate data after power loss and eliminates homing operation, delivering stable high-precision serial feedback during continuous high-speed heavy cutting cycles. The straight keyway shaft matches timing belt pulley assembly, offering stable torque transmission and anti-slip performance for heavy-load milling, drilling and tapping processes. It is widely applied on X/Y feed axes and rotary fourth axes of vertical machining centers and mold CNC milling machines that require high traverse speed.

This servo motor integrates stator winding, medium-high inertia rotor assembly and A64 absolute serial 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 straight keyed shaft for belt transmission 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 stable high-speed operation. Its medium-high rotor inertia balances fast traverse responsiveness and vibration suppression during heavy cutting, suitable for high-speed mold precision milling and repeated positioning tasks. Users can adjust servo gain and soft limit parameters on CNC system to match high-speed heavy-load feed and belt transmission characteristics.

It serves as a direct replacement spare part for original #7008 coded αi A12/3000 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 high-speed 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 belt-driven CNC high-speed heavy feed axis applications.