About BearingXRef
Cross-reference any bearing, across any brand — free, and without a login.
Our Mission
BearingXRef exists to answer one question quickly and honestly: what is the equivalent of this bearing in another brand? Bearing part numbers follow international standards, but every manufacturer adds its own prefixes and suffixes, and the catalogues that explain them are scattered, paywalled, or built for people who already know the answer.
We put the equivalents side by side, with the dimensions and load ratings next to them, so you can check a part in seconds rather than digging through seven PDFs.
What We Offer
- Cross references across seven manufacturers — SKF, FAG (Schaeffler), NSK, Timken, NTN, Koyo (JTEKT) and NACHI.
- Full dimensional data — bore, outer diameter, width, ball diameter and ball count.
- Load and speed ratings — dynamic and static load ratings, plus reference speeds for grease and oil lubrication.
- Search by number, dimension or series — start from whatever you happen to know.
Who We Serve
Maintenance engineers matching a failed bearing to whatever is on the shelf. Machinists and toolmakers working from drawings that specify one brand while the stores hold another. Motorcycle, bicycle and automotive workshops sourcing replacements. Procurement staff checking that a cheaper quote is genuinely the same part. Students and hobbyists learning how bearing designations work.
Our Standards
Accuracy
Dimensions and designations follow the ISO standards that govern metric ball bearings. Where a manufacturer’s part number differs from the ISO base number, we show their number rather than assuming it matches.
Coverage
The database is organised by series, and we add series rather than isolated part numbers, so a series is either covered properly or not yet listed.
Free to Use
No account, no paywall, no download. The site contains Amazon affiliate links and Google AdSense code. As an Amazon Associate, we earn from qualifying purchases. Affiliate commissions do not change the dimensional reference data. Advertising availability depends on Google’s approval and settings.
An Important Note on Accuracy
A cross reference is a starting point, not a purchase order. Two bearings can share dimensions and still differ in internal clearance, cage material, seal type, lubricant, or tolerance class — any of which can matter in your application. Always confirm compatibility with the manufacturer or your supplier before ordering, particularly for high-speed, high-temperature or safety-critical work.
Brand names and trademarks belong to their respective owners. BearingXRef is independent and not affiliated with any bearing manufacturer.
Contact Us
Spotted an error, or want a series added? We would rather hear about it than leave it wrong. Email info@bearingcrossref.com — see our contact page for what to include.