Changelog

What changed, and when.

Data releases, corrections and notable changes, newest first. Report an error through the contact page and it will be listed here once fixed.

  1. Bearing reference expanded; free size dataset

    • Added miniature (60x, 62x, 63x, 68x, 69x), thin-section (618, 619, 160), metric tapered roller (302, 303, 320 X, 322, 323) and UCP200 pillow block units.
    • Published the standard-size dataset as CSV and JSON under CC BY 4.0, a printable bearing size chart and a bearing number decoder.
    • Added bore and shared-size pages, e.g. all 25 mm bore bearings and all 25 × 52 × 15 mm bearings.
    • Corrections during QA: 688 listed at its shielded width (8 × 16 × 5 mm) because that is how it is sold; open 68x/69x bearings are narrower.

  2. Bearing size reference launched

    • 480 standard sizes across deep groove, self-aligning, angular contact, cylindrical roller, spherical roller and thrust ball bearings.
    • Dimensions authored from the ISO 15 and ISO 104 dimension plans and cross-checked against independent listings; disputed values (e.g. 51205, 1304, 2310, 51210) were confirmed against manufacturer and distributor data.