Product Details

FANUC A06B-0034-B077 is βi-B6/2000 AC servo motor with tapered shaft, belonging to FANUC Beta economical servo series, compatible with βi servo amplifiers and FANUC 0i-MF, 0i-MF Plus CNC systems. Different from the straight shaft A06B-0034-B075#7008 we listed before, this B077 variant adopts taper shaft design and comes without built-in holding brake, so it is mainly used for horizontal X and Y feed axes that do not need gravity holding protection. It runs on 200V three-phase AC, rated speed 2000rpm, equipped with A32B absolute encoder to retain axis position data after power-off and skip repeated homing operation.

This servo motor integrates stator winding, rotor assembly and high-resolution absolute encoder inside compact aluminum housing. The A32B absolute encoder feeds back precise angular position signal to the servo amplifier, supporting closed-loop position, speed and torque control for CNC feed axes. The tapered shaft structure matches standard taper sleeve couplings, which can realize concentric installation and stable torque transmission for ball screw drive, reducing vibration during high-speed feed movement. Two independent locking connectors are arranged at the rear end, separately 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, better dust and splash resistance than ordinary versions, resisting coolant splashes, cutting oil mist and fine metal dust in metal cutting workshops. The internal bearing assembly adopts long-life grease lubrication to adapt to long continuous heavy cutting cycles. The housing is optimized for heat dissipation to stabilize operating temperature under heavy load. Users can adjust servo gain and soft limit parameters on CNC system to match high-precision milling and boring feed motion requirements. It cannot be used directly for vertical Z-axis without adding external mechanical brake.

It serves as a direct replacement spare part for original taper shaft βi B6/2000 servo motors suffering from bearing abnormal noise, encoder signal loss, shaft runout and winding burnout. Every unit will pass winding insulation test, encoder position reading test and servo amplifier matching test before shipment, ensuring stable speed regulation and high positioning accuracy. Replacing this taper shaft servo motor can quickly restore heavy-load horizontal feed axis motion, avoid machine shutdown caused by positioning deviation. It is widely used in vertical machining centers, mold milling machines, horizontal boring mills and other precision CNC equipment.