The standard Cage for our Tapered Roller Bearings is a “pin-type” design that has proven to be very successful in applications that experience very high loads and high speeds. No suffix is used on our bearing number for this cage, while other types of cages have their own suffix code when used. This is a single row (TS) tapered roller bearing with a bore size of 16.3750”. By finding it by bore size in our tables, you will see that it has a 23.2500” O.D. and is 4.500” wide.