The Nachi 7209BMU angular contact ball bearing features a 45 mm bore diameter, 85 mm outer diameter, and 19 mm width, with a 40-degree contact angle for high axial load capacity. It has a brass cage and is flush ground for precision fit, designed as a single open row bearing. The bearing supports dynamic loads up to 37,000 N and static loads up to 27,100 N, with an ABEC 1 (ISO P0) tolerance rating. Its robust construction and precise dimensions make it suitable for high-speed applications requiring reliable performance and durability. Made in Japan, it offers consistent quality and long service life.