Abstract: Apparatus and method for converting a convention centerless grinding machine to a centerless grinding machine having a servo motor mounted inside the top slide using an internal servo motor bracket. The servo motor bracket is bolted to the spindle head assembly housing and is cantilevered into the top slide to allow required tilt adjustment of the regulating wheel with respect to the top slide while maintaining correct alignment of the servo motor with the regulating wheel spindle. The bracket includes slots allowing a servo motor belt tension to be adjusted. The tension adjustments are conveniently made through an existing opening in the top slide. Locating the servo motor inside the top slide using the internal servo motor bracket of the present invention significantly reduces conversion costs and servo motor maintenance otherwise required by the environment the centerless grinder is operated in, for example, oils and the presence of metal grindings.