A06B-2116-B103 Fanuc AC Servo Motor Model BiS1/6000-B BiA64

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The FANUC A06B-2116-B103 is an AC brushless servo motor from the Beta i S family, designed for precise axis movement and positioning on FANUC-controlled CNC machine tools. It is suitable as a replacement motor, spare part or CNC replacement component for maintenance and retrofit applications.

This motor is a Beta i S size 1 model with a speed rating of up to 6,000 rpm and a straight shaft configuration. It is equipped with BiA64 absolute encoder feedback, allowing closed-loop control when paired with a compatible FANUC Beta i servo amplifier.

According to the supplied technical data, the motor provides an output of 0.5 kW with a rated current of 1.8 A. It operates from a 200–240 VAC supply, with a motor input of 172 VAC, three-phase configuration and 8 poles.

The A06B-2116-B103 is suitable for X, Y and Z feed axes, rotary indexers, loaders and other auxiliary CNC axes requiring accurate positioning and stable speed control. Its FANUC-standard mechanical and electrical configuration allows a straightforward replacement when the exact reference and encoder configuration match the original motor.

Before installation, it is recommended to verify the complete FANUC part number, servo amplifier compatibility, encoder type, shaft configuration and mounting dimensions. A tested motor can be operated with a compatible FANUC amplifier on a CNC test bench to verify motor operation, encoder feedback and overall performance, making it a practical solution for machine maintenance, retrofit and emergency replacement.

Frequently asked questions about A06B-2116-B103:

Which amplifier range should be used with this motor?
Pair it with a FANUC Beta i servo amplifier sized for the BiS1 motor rating. Always confirm the drive’s current and power class against the motor nameplate and the machine builder’s specification.

What does BiA64 indicate on this reference?
It identifies the encoder option, a FANUC absolute feedback variant. Keep the same encoder option when replacing the motor to maintain CNC parameter compatibility and homing behavior.

Is this a direct drop-in for machines already using A06B-2116-B103?
Yes, when you match the exact part number and option code, the mechanical fit and feedback configuration align with the original. This approach minimizes setup work after installation.

Can this unit be supplied as refurbished or through exchange?
Depending on availability it can be offered as a refurbished unit or via exchange service. This is often the fastest route to restore machine uptime when lead times on new stock are longer.