RFQ Preparation

How to Reconfirm Ball Screw Drawing Changes After Quotation

Drawing changes after quotation must reconfirm revision, end dimensions, nut style, and tolerance, and may require a requote.

drawing changerequoteend dimensionRFQ

Order decision table

Drawing change areaWhat to comparePossible result
Revision numberOld drawing vs new drawingConfirms which version controls production.
End dimensionBearing seat, thread, keyway, shoulderMay change machining cost and lead time.
Nut style or toleranceFlange, preload, accuracy, toleranceMay require requote or new review.
Commercial impactCost change, quantity, delivery dateDecides whether quotation remains valid.

Confirmation checklist

  • Drawing change summary, revision number, changed pages, and responsible confirmer.
  • End dimension, nut style, tolerance, material, surface treatment, and inspection report changes.
  • Cost change, lead time change, quantity, packing, and whether a requote is required.
  • Final approved drawing, quotation number, PO status, and production release decision.

Send us the changed drawing before production

Send weimute the old drawing, new drawing, revision number, and change list after quotation. Our manufacturing and sales team will confirm whether the quotation still applies or whether a requote is needed.

FAQ

Does every drawing change require a requote? Not always, but changes to end dimensions, nut style, tolerance, or inspection scope often affect cost or lead time.

Can production continue while the drawing is changing? It is risky. Reconfirm the final revision before production release. See the pre-production confirmation checklist.

Next step

Turn this guide into an RFQ

When the specification direction is clear, send the details below together with quantity, lead time, and packing requirements.

Include these details

  • Model, length, quantity, purchase purpose, and target lead time.
  • Drawing, sample photos, application parameters, or old-part dimensions.
  • Packing, label, inspection, and quotation version to confirm before payment.