Profile: Boca Bearing Co. offers ceramic bearings. Our products are angular contact bearings, dental tool bearings, double row bearings, grooved bearings, insert bearings, matched pair bearings and mounted unit bearings. We also offer needle bearings, O rings, oil seals, one way bearings, plastic bearings, pressure roller bearings and rod end bearings. Cylindrical roller bearings have moderate thrust loads and high radial-load capacity. They contain cylindrically-shaped rollers, but are not true cylinders. Instead, they are crowned or end-relieved to reduce stress. This results in low friction and allows for high-speed applications.