Product Details

FANUC A06B-0143-B075#7076 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 #7076 suffix stands for upgraded IP67 heavy-duty sealing option, built to endure harsh workshop environments with continuous coolant splash and dense oil mist. It is equipped with A64 multi-turn absolute serial encoder, which retains coordinate data after power loss and removes homing requirement, delivering stable high-precision serial feedback during long cycles of high-speed heavy cutting. The straight keyway shaft mates with timing belt and pulley assembly, offering reliable torque transfer and anti-slip performance for heavy-load milling, drilling and mold machining. It is widely fitted on X/Y feed axes and rotary fourth axes of vertical machining centers that run under poor coolant conditions and demand 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 IP67 protection grade, capable of resisting direct coolant splashing, heavy 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 rapid traverse and vibration suppression during heavy cutting, suitable for high-speed precision mold 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 #7076 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 with strict waterproof requirements.