Self Aligning Ball Bearings
Self-aligning ball bearings. Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are available open or sealed.
Due to their special construction, these bearings can tolerate small angular misalignments of shaft up to 2.5 – 3 degrees. These misalignments could either be due to usage, or due to a mounting error.