Spherical roller bearings have two rows of rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis.

The rollers in a single row cylindrical roller bearing (fig 1) are always guided between the integral "open" flanges on one of the rings.

The Bilateral Double Row Thrust Tapered Roller Bearing is made, using advanced techniques, sophisticated equipment,

Deep groove ball bearings have deep, uninterrupted raceway grooves. These raceway grooves have a close osculation with the balls,