What an industrial buyer can verify before ordering.
A special bearing order depends on the drawing, written specification and inspection evidence. This page explains what is confirmed, what records can be requested and where we will ask for more information instead of guessing.
The requirement is fixed in writing.
The quotation starts from the drawing, part number, measured sample or operating conditions supplied by the buyer.
Drawing confidentiality
Drawings and sample information are used for technical review and production. An NDA can be requested before files are exchanged.
Open points returned as questions
Unknown load, fit, clearance, preload, material or inspection requirements remain open until the buyer confirms them.
No silent substitutions
Changes to dimensions, material, heat treatment, clearance or inspection requirements require written agreement.
Five items to confirm.
- Drawing and revisionThe controlled drawing or confirmed measured dimensions.
- Working conditionsLoad, speed, temperature, environment and lubrication.
- Technical specificationFit, accuracy, clearance or preload where required.
- Inspection planCharacteristics, sampling and reports agreed before production.
- Quantity and packingPrototype, batch quantity, marking and destination requirements.
Documents are agreed at enquiry stage.
Ask for the records your QC process requires. Availability depends on the product and the confirmed order specification.
Dimensional inspection record
Measured characteristics, drawing reference and batch identification can be agreed for the order.
Material information
Material reports are supplied only when requested and supported by the confirmed sourcing route.
Batch identification
Part marking, labels and inspection records should connect the delivered parts to the agreed batch.
What we will not assume.
A certificate that has not been verified
Certification is stated only when a valid certificate, scope and issuing body can be checked.
A material or precision class that the drawing does not specify
Material, tolerance class, clearance and preload stay unknown until confirmed by evidence or written instruction.
A service-life promise without operating data
Life and suitability depend on load, speed, lubrication, mounting and environment. Missing inputs are requested before a technical conclusion.
Inspection characteristics that cannot be measured as written
The datum, instrument and method must be clear. Unmeasurable or conflicting requirements are returned for clarification.