Lock nuts requiring a keyway (inch) - AN-20 G, 99.517, mm. Threads per inch, 12. d1, 122.25, mm. d3, max. 131.902, mm. B, 19.304, mm. b, 9.144, mm. h, 4.216, mm CR Seals (SKF) 20X47X7 - Fluoro Rubber Oil  Buy CR Seals (SKF) 20X47X7 - Fluoro Rubber Oil Seal - HMSA10 Design, Double Lip with Spring, 20 mm Shaft, 47 mm OD, 7 mm Width, Fluoro Rubber, 
SKF - W 20 - Motion IndustriesBuy SKF Bearing Lock Washers W 20 direct from Motion Industries. Your proven service leader with reliable delivery since 1972SKF - 20mm Bore Diam, 32mm OD, Open Thin Section RadialFind 20mm Bore Diam, 32mm OD, Open Thin Section Radial Ball Bearing at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for SKF - AN 20 - Motion IndustriesAN Series Bearing Lock Nut - 3.918-12 in Thread Size, 5-3/16 in OD, 4.813 in Face Dia., 3/4 in Width, Steel.  Retaining Nut - 3.918-12 Thread Size, 5.1880 in OD, 4.8130 in Face Dia., 0.7600 in Width, Low Carbon Steel.  Bearing Lock Nut - 3.9180-12 Thread Size, 5.1181 in OD, 4.7244 in