P4ADimensional Accuracy In Accordance With ISO Tolerance Class 4, Running Accuracy Better Than ISO Tolerance Class 4
HB4Bainite Hardened Outer And Inner Ring And Rolling Elements
TBWindow-Type Cage Of Fabric Reinforced Phenolic Resin, Inner Ring Centered
VJ150(VJ...)V Combined With A Second Letter, Identifies A Variant Group, And Followed By A Three- Or Four-Figure Number Denotes Variants Not Covered By "Standard" Designation Suffixes