Bearings for machines having polycrystalline diamond surfaces, namely, radial bearings, thrust bearings, radial and thrust bearings, roller ball bearings, cam followers, and linear bearings, all the aforementioned for use in machines, namely, downhole drilling motors, namely, drive trains of downhole drilling motors

Bearings for machines having polycrystalline diamond bearing surfaces, namely, radial bearings, thrust bearings, combination radial and thrust bearings, roller ball bearings, cam followers, drivelines, and linear bearings

PARTS FOR TEXTILE MACHINES, NAMELY, THREAD GUIDES, PINS, TUBES, EYELETS, ROLLERS, GLIDE RINGS, TRAVERSE GUIDES, AND AIR JETS, ALL MADE WHOLLY OR PARTIALLY OF CERAMICS