Product Details

FANUC A06B-0128-B575#7076 is αi A6/3000 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 1.4kW, rated speed 3000rpm, stall torque 6.0Nm. The #7076 suffix represents upgraded IP67 high sealing variant, optimized for harsh workshop environments with heavy coolant splash and oil mist. 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 feedback during continuous heavy cutting cycles. The straight keyway shaft matches timing belt pulley assembly, offering reliable torque transmission and anti-slip performance for medium and heavy load milling and drilling processes. It is widely applied on X/Y feed axes and rotary fourth axes of vertical machining centers and mold CNC milling machines working under poor coolant conditions.

This servo motor integrates stator winding, medium 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, dense cutting oil mist and fine metal dust in CNC workshops. The internal bearing set uses long-life grease lubrication to support continuous stable medium-high-speed operation. Its medium rotor inertia balances acceleration responsiveness and vibration suppression during heavy cutting, suitable for mold precision milling and repeated positioning tasks. Users can adjust servo gain and soft limit parameters on CNC system to match medium-heavy-load medium-high-speed feed and belt transmission characteristics.

It serves as a direct replacement spare part for original #7076 coded αi A6/3000 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 medium-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 feed axis applications with strict waterproof requirements.