Choosing a cross slide table begins with the drive system, not the catalog photo. Pitch determines movement per revolution and strongly affects positioning resolution. A fine pitch improves control, but it usually reduces travel speed. A coarse pitch moves faster, though small adjustments become less precise.
Check the required speed under the real load. Do not rely only on the no-load rating. Add the workpiece, tooling, and acceleration forces. Then inspect backlash specifications, especially when the table changes direction repeatedly. Low backlash supports accurate reversal, but it may require careful adjustment and regular maintenance. Measure under load. The result can differ from a factory test.
Lead screws suit moderate speeds and cost-sensitive designs. Ball screws typically offer smoother motion and lower friction, but installation alignment becomes more demanding. Consider load capacity, duty cycle, lubrication access, contamination, and available motor torque. A compact table may fit neatly, yet provide too little stiffness during cutting. That mistake is common.
Review repeatability separately from accuracy. They are not identical. Confirm whether specifications use millimeters, inches, or angular movement, and ask how temperature affects performance. In practice, I would test several reversal cycles with a dial indicator before final selection. I have also learned that a tighter specification is not automatically better if the application cannot maintain alignment. Leave adjustment access around the drive, and document the expected service conditions before ordering.