Koyo Bearings 7309BG Angular Contact Ball Bearing

Koyo Bearings 7309BG Angular Contact Ball Bearing is a Koyo-brand angular contact bearing, model 7309BG. It measures 45x100x25 mm, with a bore of 45 mm, an outer diameter of 100 mm, and a width of 25 mm. The 7309BG designation identifies this specific angular contact bearing size and style within Koyo’s catalog. This 45x100x25 mm footprint is a standard metric size used for assemblies requiring an angular contact bearing in this exact package, and it aligns with common maintenance and replacement practices for equipment specifying the 7309BG form factor. As part of Koyo’s angular contact bearing lineup, the 7309BG is designed to fit into systems where precise axial and radial load considerations are addressed by this bearing geometry, while preserving a compact, proven footprint in a widely referenced 7309-series family. When selecting replacements, confirming the 45x100x25 mm dimensions ensures compatibility with the mounting housings and shaft interfaces designed for this model.