Used and surplus servo motors for sale. MRO Exchange carries a rotating selection of CNC and industrial servo motors available for immediate purchase and fast nationwide shipping.

A servo motor failure on a CNC machine is one of the most disruptive maintenance events a shop can face. Unlike general purpose AC motors, servo motors are precision components engineered to work within a closed-loop system alongside a matched servo drive and feedback device. The motor, drive, and encoder function as a system, and replacing the motor requires matching not just the physical dimensions but the electrical characteristics, feedback interface, and control compatibility of the original unit.

MRO Exchange carries surplus servo motors from leading CNC manufacturers including Fanuc and Mitsubishi. Both brands maintain large installed bases across North American machining, making replacement demand consistent and our inventory turnover active. Fanuc servo motors in particular are platform-specific components where finding a compatible replacement outside the surplus market for older control generations can be both difficult and expensive.

What to verify before purchasing a surplus servo motor:
Confirm the exact model number against your machine's axis configuration documentation. Verify the feedback device type, whether incremental or absolute encoder, matches your servo drive requirements. Confirm the shaft configuration, brake option if applicable, and connector type match the existing installation. For Fanuc systems, cross-reference the motor series against your CNC control generation to confirm compatibility.

Every servo motor listed on MRO Exchange ships nationwide from our facility in Illinois at prices well below new OEM cost.