Page 281 of Ball and Roller Bearings by NTN Corporation Japan

tapered roller bearings 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 bearing numbers abutment and fillet dimensions mm ras da db da db max load constant axial center load factors mm r1as max mass kg approx a e y2 yo 4t-397/394a 4t-jhm911244/jhm911211 4t-28985/28921 4t-3980/3920 4t-hm212044/hm212011 4t-5583/5535 4t-558/552a 4t-hm813841/hm813810 4t-65237/65500 4t-hm911245/hm911210 4t-392/394a 4t-h715334/h715311 4t-h913842/h913810 4t-28990/28920 4t-28995/28920 4t-l610549/l610510 4t-29585/29520 4t-29586/29520 4t-390a/394a 4t-29585/29521 4t-3982/3920 4t-39585/39520 4t-477/472 4t-483/472 4t-hm212046/hm212011 4t-5584/5535 4t-559/552a 4t-565/563 4t-hm813842/hm813810 4t-639/632 4t-78250/78551 4t-jlm710949/jlm710910 4t-jm511946/jm511910 1 69 84 73 75 85 78 73 80 82 87 70 86 90 72 75 71 77 73 73 77 77 77 73 78 80 81 78 80 82 81 85 77 78 68 74 67 68 70 72 69 73 71 74 69 79 82 68 69 69 71 71 70 71 71 71 72 72 73 75 72 73 76 74 79 71 72 101 109 89 99 108 106 109 111 107 109 101 118 124 90 90 86 96 96 101 99 99 101 107 107 108 106 109 112 111 118 117 96 99 104 123 96 106 116 116 116 121 119 124 104 132 138 97 97 91 103 103 104 104 106 107 114 114 116 116 116 120 121 125 132 101 105 b-179 0.8 3.5 3.5 3.5 8 3.5 2.3 3.5 3.5 5 0.8 3.5 3.5 2 3.5 1.5 3.5 1.5 1.5 3.5 3.5 3.5 0.8 3.5 3.5 3.5 3.5 3.5 3.5 3.5 2.3 3 3 1.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.3 1.3 3.3 3.3 3.3 3.3 1.5 3.3 3.3 1.3 1.3 3.3 3.3 2 2 3.3 3.3 3.3 3.3 3.3 3.3 2.3 1 2.5 0.7 ­7.61 2.5 4.5 11.1 13.3 9.4 3.7 9.3 ­5.21 0.7 8.7 ­4.31 1.7 2.5 ­0.61 0.6 0.6 0.7 0.6 4.5 6.6 3.9 3.9 11.1 13.3 9.4 8.3 3.7 11.4 ­8.51 0.3 3.4 0.40 0.82 0.43 0.40 0.34 0.36 0.35 0.50 0.49 0.82 0.40 0.47 0.78 0.43 0.43 0.42 0.46 0.46 0.40 0.46 0.40 0.34 0.38 0.38 0.34 0.36 0.35 0.36 0.50 0.36 0.87 0.45 0.40 1.49 0.73 1.41 1.49 1.78 1.67 1.73 1.20 1.23 0.73 1.49 1.27 0.77 1.41 1.41 1.41 1.31 1.31 1.49 1.31 1.49 1.77 1.56 1.56 1.78 1.67 1.73 1.65 1.20 1.66 0.69 1.32 1.49 0.82 0.40 0.78 0.82 0.98 0.92 0.95 0.66 0.68 0.40 0.82 0.70 0.42 0.78 0.78 0.78 0.72 0.72 0.82 0.72 0.82 0.97 0.86 0.86 0.98 0.92 0.95 0.91 0.66 0.91 0.38 0.73 0.82 0.91 2.01 0.772 1.33 2.02 2.44 2.1 2.21 2.65 2.12 0.879 3.47 3.17 0.768 0.764 0.449 0.924 0.929 0.851 0.982 1.26 1.27 1.49 1.48 1.95 2.34 2.01 2.11 2.12 2.85 2.54 0.742 1.08 means that load center at outside on end of inner ring.

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