This document has been declared ""Stabilized"" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist. This recommended practice provides certain design requirements and quality assurance provisions for anti-friction bearings intended for use by the aircraft industry. This recommended practice covers single row, radial, deep groove, non-filling slot type ball bearings having tolerance grades 1, 3, 5 and 7, and having varying radial clearances.