FAT Checks for a 32 mm Ball Screw Assembly

For a flanged ball screw assembly with a 32 mm shaft and 10 mm lead, the key buyer decision is how to turn the maximum backlash figure of 0.03 mm into a repeatable factory acceptance test rather than a one-off hand check. Ask the supplier to state the measurement method, load direction, and number of reversal cycles used, then compare that with your own acceptance procedure.

Practical checks to specify in the request for quotation or demonstration include backlash measured at several positions along the stroke, lead error over a defined travel length, and smooth rotation under a light axial load. Ask whether the 0.03 mm value is a catalog reference limit or a guaranteed limit for the supplied unit, and whether it applies after run-in. For the flanged nut, confirm mounting face flatness and bolt pattern fit against your carriage drawing.

Before requesting a quote, confirm with the supplier which tests are performed on every unit, which are sampled, what instrumentation and load conditions apply, and how results are recorded and reported.