Skf Bearings India Limited manufactures Self-aligning Sealed Ball Bearings. Skf Bearings India Limited is an ISO 140001, ISO OHSAS 18001 and ISO/TS 16949 certified company. Self-aligning Sealed Ball Bearings is a sheet steel reinforced seals which are made of oil and wear-resistant acrylonitrile-butadiene rubber [NBR]. Self-aligning Sealed Ball Bearings can operate in the temperature range for these seals are -40 to +100 degree centigrade and up to +120 degree centigrade for brief periods. The seal lip contacts a smooth chamfer on the inner ring with light pressure. These self-aligning ball bearings are available With a cylindrical bore.