5823 models in the NU series, 45–50 mm bore. Every row links to the full specification page and to the cross-reference page of that model.
NU series bearings follow the ISO dimension plan for this family, so a given number is dimensionally interchangeable between brands - see the cross-reference to confirm. Choose the suffix for your duty: shields for dry, clean positions, contact seals for wet or dusty ones, and a larger clearance class where the fit or temperature demands it.
Other Cylindrical Roller Bearings series: NJ · N · NUP · NN · FC · NNU · LSE · NF