a spring actuated guide system for a top driven drilling machine . rollers for guiding the drilling machine are mounted onto springs which urge the rollers into contact with support surfaces on parallel tracks within a derrick . if the tracks become misaligned , the springs allow for the misalignment with low roller loads thereby providing limited rotational movement of the drilling machine relative to the tracks . premature failure of the roller bearings is prevented and wear on the rollers and tracks is reduced .