Thrust Bearings, like other bearings, permit rotation between parts, but are designed to support a predominantly high axial load while doing this (parallel to the shaft). Generally, they are composed of two washers (raceways) and the ball/roller elements which are typically caged.
BBC's thrust bearings currently start with bore sizes from 20 mm and go up to 360 mm with outer diameters from 35mm to 440 mm. Let us know if you need sizes outside these dimensions. Our range includes cylindrical roller thrust bearings, tapered roller thrust bearings and thrust ball bearings.