FANUC A06B-0116-B075#0008 beta iS servo motor,beta B2/4000 keyway shaft motor Inquiry Product

beta iS servo motor,beta B2/4000 keyway shaft motor,cnc feed axis motor

Product Details

FANUC A06B-0116-B075#0008 is βiS B2/4000 AC servo motor with keyway shaft and no built-in holding brake, belonging to FANUC Beta iS servo series, compatible with βiS servo amplifiers and FANUC 0i-MF, 0i-MF Plus CNC systems. It adopts 200V three-phase AC power supply, rated power 0.75kW, rated speed 4000rpm, stall torque 2.4Nm. The #0008 suffix stands for standard serial encoder variant, widely used for original machine matching and overseas spare replacement. It is equipped with high-resolution serial encoder that keeps axis position data after power failure and removes homing operation. This compact medium inertia motor balances stable torque output and agile dynamic response, suitable for medium-load milling and continuous positioning tasks. The keyway shaft is designed for timing belt and pulley transmission, maintaining reliable torque transfer and preventing slippage under medium cutting loads. It is widely applied on X, Y feed axes and rotary fourth axes of vertical tapping centers and small and medium-sized CNC milling machines.

This servo motor integrates stator winding, medium inertia rotor assembly and high-resolution serial encoder inside red-capped aluminum housing. The encoder transmits high-precision angle feedback signals to servo amplifier to realize closed-loop position, speed and torque control. It comes with keyway shaft matched with synchronous pulley for belt-driven mechanical layout. Without built-in brake, this unit cannot lock shaft position during power outage; external brake assembly is required if installed 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 cyclic operation. Its moderate rotor inertia achieves a good balance between acceleration responsiveness and anti-interference capacity during cutting, fitting frequent reciprocating feed and light-medium milling processing. Users can adjust servo gain and soft limit parameters on CNC system to match medium-load medium-speed feed and the elastic property of belt transmission.

It serves as a direct replacement spare part for original #0008 coded keyway shaft βiS B2/4000 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-load medium-speed feed axis motion rapidly, avoid machine shutdown caused by cutting interruption and positioning deviation. It is widely deployed in vertical tapping centers, small and medium CNC milling machines and other belt-driven CNC feed axis applications.