2210 ETN9 ã�Featuresã Self-aligning ball bearing has two rows of balls and a common spherical raceway in the outer ring. The bearings are consequently self-aligning and insensitive to shaft deflections and angular misalignment of the shaft relative to the housing. Additionally, self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds. Self-aligning ball bearings are available with either a cylindrical or tapered bore. Bearings with a tapered bore can be mounted directly on a shaft or on an adapter or withdrawal sleeve. Self-aligning ball bearings are available in several designs, including: a. Open, basic design, bearings b. Sealed, with contact seals on both sides c. Open bearings with an extended inner ring ã�Applicationã heavy load and impact load machines, Precision instruments, low noise motors, automobiles, motorcycles, metallurgy, rolling mills, mines, petroleum, paper-making, cement, sugar-refining,etc. Dimensions d 50 mm D 90 mm B 23 mm d1 61.47 mm D1 80.2 mm