Some models of Cam Follower are appended with the letter "B". (Example: CF30-2-UU-B) What does this "B" mean?
"B" means that the model supports No.12 or larger hexagonal socket head cap screws. When a model is appended with the letter "B", the hexagonal socket is provided on the screw side of the stud. The location where the hexagonal socket was originally is used as an oil hole instead.