Metallic couplings, Miniature couplings, Coupling sleeves, Elastomeric couplings, Gear couplings, Wheel bearings, Ball bearings, Roller bearings, Linear bearings, Thrust bearings, Rod end bearings, Sleeve bearings, Spherical bearings, Pillow block bearings, Needle bearings, Hanger bearings, Plain bearings, Tapered bearings, Bearing cage, Bearing blocks or housings