P4ADimensional Accuracy In Accordance With ISO Tolerance Class 4, Running Accuracy Better Than ISO Tolerance Class 4
H1Two Lubrication Holes On The Thrust Side Of The Outer Ring
DBTwo Single Row Deep Groove Ball Bearings, Single Row Angular Contact Ball Bearings Or Single Row Tapered Roller Bearings Matched For Mounting In A Back-To-Back Arrangement
G31The Number Is The Mean Preload Value Of The Set Expressed In daN