25BJ05NRNCZ Nachi Bearing With Snap Ring 25mm x 52mm x 20.5mm Made in Japan 25BJ05NRNCZ Nachi Bearing with a Snap Ring, Made in Japan. the 25BJ05NRNCZ inner diameter is 25mm, the 25BJ05NRNCZ outer diameter is 52mm, 25BJ05NRNCZ width is 20.5mm.