AAs A Second Letter After The Contact Angle Information (for BTW Series Only): Bearing With A Larger Bore To To Be Mounted On The Large Diameter Side Of A Cylindrical Roller Bearing With A Tapered Bore
TN9Injection Moulded Cage Of Glass Fibre Reinforced Polyamide 6,6, Rolling Element Centred
SPSpecial Precision Class For Machine Tool Bearings: Dimensional Accuracy Approximately To P5, Running Accuracy Approximately To P4
W33Lubrication Groove And Three Holes In Bearing Outer Ring