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Bearings by size

Find a bearing by its boundary dimensions: bore (d), outside diameter (D) and width (B; T for tapered bearings, H for thrust bearings), in millimetres. There are 631 sizes with 13,725 part numbers from SKF, FAG, NTN, NSK, RKB, TIMKEN, LINK-BELT, and KOYO; 585 of those sizes include SKF part numbers.

Sizes with the most part numbers

Each size has its own page with every catalog part number that shares it, separated by bearing type: a deep groove ball bearing, a cylindrical roller bearing and an angular contact bearing can have the same size and still not be interchangeable. That is why, once you have the size, we quote by part number.

These are standard boundary dimensions (ISO 15 for radial, ISO 355 for tapered and ISO 104 for thrust bearings): the same basic designation has the same dimensions in every brand. Seals, internal clearance and cage depend on the suffix.

Bearing size chart in PDF

Boundary dimensions by type and series, to print or keep on your phone, with links to the product pages.

Bearing size chart in PDF →

All sizes, by bore

Bore 3 mm
Bore 5 mm
Bore 6 mm
Bore 7 mm
Bore 8 mm
Bore 22 mm
Bore 28 mm
Bore 1120 mm
Bore 1180 mm

Cannot find the size?

Send us the bore, outside diameter and width, with the variant and the quantity: we will quote it via WhatsApp or email.

Request a quote on WhatsApp