Inch and metric sized tapered roller bearings are designed to carry maximum combinations of radial and thrust loads simultaneously.

ET (Endurance Tapered) bearings use a high quality carburized steel and unique heat-treating process to greatly increase durability and extend life span.

4T bearings are manufactured from a special grade of case hardened steel and heat treated for maximum useful life.

Sized from 0.6250" (16 mm) inside diameter to 10.1250" (257 mm) outside diameter. Metric ISO sizes from 15 mm inside diameter to 160 mm outside diameter.

Both NTN and NTN-Bower brand names are available.