About IndustriCross
IndustriCross is an independent engineering reference for cross-referencing rolling-bearing designations across brands. It exists to answer one question reliably: "what else fits, and what do I have to check before I swap it?"
What we do
For each bearing designation we publish its ISO boundary dimensions (bore, outer diameter, width/height), how each major brand designates the same size, and — importantly — the interchange limits: the seal, clearance, contact-angle, flange or locking differences that a same-size part can still have. We cover deep groove ball, angular contact, four-point contact, self-aligning ball, insert/mounted (UC), cylindrical roller, spherical roller, tapered roller and thrust ball bearings.
How our data is verified (our data policy)
Every dimension published here passes the same checks, regardless of source:
- ISO bore-code check — the bore is re-derived from the designation and must match.
- Known-value anchors — sampled against standard catalogue values across every bearing type.
- Cross-catalogue agreement — wherever possible, values are confirmed against two independent manufacturer catalogues (e.g. NSK and SKF); we do not publish figures our automated audit cannot reconcile.
- Build-time audit — a monotonicity and integrity audit runs before every publish; data that fails is rejected, not shipped.
We would rather publish fewer verified sizes than more unverified ones. When a data source is ambiguous, we leave it out.
What we deliberately do NOT publish
We list dimensional facts only. We do not publish load ratings, speed limits or other safety-critical selection values, because those vary by internal design and should be read from the manufacturer's own catalogue. Every page carries this disclaimer.
Sources
Manufacturer catalogues (NSK, SKF and others) and the governing ISO standards (ISO 15, ISO 355, ISO 104, ISO 9628). See our methodology page for the full data flow and confidence model.
Corrections
This is a reference, and references should be correctable. If you find a value that disagrees with a manufacturer catalogue, please contact us — we will check it and fix it.
Data version 2026.06. Boundary-dimension reference only; verify against the manufacturer's specification before substituting.