Thrust Ball Bearings Single Direction Dimensions Basic load rating Limiting speed for lubrication with dynamic static d D H Cr Cor grease oil mm kN min-1 12 26 9 10.3 15.4 7500 10000 15 28 9 10.5 16.8 7100 9400 15 32 12 15.7 24.4 6000 7900 17 30 9 11.3 19.6 7100 9400