Page 241 of Ball and Roller Bearings by NTN Corporation Japan

tapered roller bearings sa sb r1a ra da db da db equivalent bearing load dynamic pr xfr yfa fa fa e fr fr exyxy 1 0 0.4 y2 static por 0.5fr yofa when por fr use por fr for values of e y2 and yo see the table below dimensions series to iso da min abutment and fillet dimensions mm db max max load constant center mm sb min axial load factors mass kg da min db min sa min ras max r1as max a e y2 yo approx 2fb 2db 2dd 2fb 3cc 2db 2dd 2fb 2fd 3cc 4cc 2ce 3cc 2cd 5cd 2de 2fb 7fb 2fd 4cc 2de 4cc 2ce 3db 3dc 5dc 2de 2fb 20.5 22.5 22.5 22.5 22.5 24.5 25.5 25.5 28.5 28.5 28.5 26.5 29.5 29.5 30.5 30.5 30.5 30.5 30.5 30.5 33.5 33.5 33.5 33.5 33.5 33.5 35.5 35.5 35.5 35.5 35.5 35.5 38.5 22 23 23 22 24 25 27 26 28 27.5 27 27 30 29 31 31 31 30 30 30 34 34 34 32 33 34 35 35.5 37 37 35 36 40 36.5 34.5 34.5 34.5 41.5 37.5 41.5 41.5 43.5 43.5 43.5 39.5 42.5 42.5 46.5 46.5 46.5 46.5 46.5 46.5 53.5 53.5 53.5 53.5 46.5 52.5 49.5 49.5 56.5 56.5 56.5 56.5 63.5 35 33 33 33 40 36 40 39 42.5 39.5 43 38 40 40 44 43 43 42 42 43 52 48 45.5 52 45 49 48 46.5 53 52 49 53 62 38 37 37 36.5 42 39 44 43 47.5 48 47 41 44 43.5 48 48 48 49 49 49 57 58 58.5 57 49 55 52 52 57 58 59.5 59 66 ntn 2 2 2 2 3 3 2 2 3 3 3 3 3 3 2 2 2 2 2 4 3 3 3 3 3 5 3 3 2 2.5 2 5 3 3 2 3 3 3.5 3 3 4 3 4 4 3.5 3.5 3 3 4 4 4 4 4 3 4 5 5 4 5 4 4 3 4 5 5.5 4.5 b-139 1 1 1 1 1 0.6 1 1 1.5 1.5 1.5 0.6 0.6 0.6 1 1 1 1 1 1 1.5 1.5 1.5 1.5 1 1 1 1 1 1 1 1 1.5 1 1 1 1 1 0.6 1 1 1.5 1.5 1.5 0.6 0.6 0.6 1 1 1 1 1 1 1.5 1.5 1.5 1.5 1 1 1 1 1 1 1 1 1.5 9.5 9.5 11.5 11 10.5 10.5 11.5 12.5 10.5 13.5 14 11 12 11 12.5 14 13.5 16 16 14 13 16 20 16 12.5 15.5 13.5 13 13.5 15.5 18.5 16 15 0.29 0.35 0.31 0.35 0.29 0.37 0.35 0.33 0.30 0.55 0.30 0.40 0.43 0.29 0.37 0.36 0.37 0.58 0.55 0.35 0.30 0.55 0.83 0.30 0.43 0.34 0.43 0.29 0.37 0.37 0.56 0.34 0.31 2.11 1.74 1.92 1.74 2.11 1.60 1.74 1.81 2.00 1.10 2.00 1.51 1.39 2.07 1.60 1.67 1.60 1.03 1.10 1.71 2.00 1.10 0.73 2.00 1.39 1.77 1.39 2.06 1.60 1.60 1.07 1.76 1.90 1.16 0.96 1.06 0.96 1.16 0.88 0.96 1.00 1.10 0.60 1.10 0.83 0.77 1.14 0.88 0.92 0.88 0.57 0.60 0.94 1.10 0.60 0.40 1.10 0.77 0.97 0.77 1.13 0.88 0.88 0.59 0.97 1.05 0.098 0.08 0.102 0.104 0.134 0.097 0.127 0.16 0.176 0.17 0.245 0.106 0.114 0.13 0.154 0.187 0.181 0.19 0.19 0.217 0.272 0.264 0.284 0.381 0.146 0.293 0.166 0.201 0.241 0.301 0.294 0.344 0.408

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