Page 129 of Angular Contact Ball Bearings for Radial Loads by NTN Corporation Japan

main spindle bearings ras ras ras r1as dynamic equivalent radial load pr e xfr yfa da da db da single row tandem back-to-back face-to-face fa fr e fa fr e fa fr e fa fr exyxyxyxy 0.68 1 0 0.41 0.87 1 0.92 0.67 1.41 static equivalent radial load por single row tandem xo yo xo fr yo fa back-to-back face-to-face xo yo 0.5 0.38 1 0.76 back-to-back db load center mm a 20.3 22.3 23.5 24.7 27.9 29.1 30.3 33.0 34.2 35.4 38.1 mass kg single-row approx face-to-face df reference dimensions when por fr with single-row or tandem f r arrangement por abutment and fillet dimensions mm da max part number r1as max da d1 56.9 62.6 67.6 72.6 79.2 84.2 89.2 96.0 100.9 105.9 111.9 d2 56.0 61.7 66.7 71.7 78.3 83.3 88.3 95.0 100.0 105.0 110.9 d1 65.0 72.1 77.1 82.1 90.2 95.2 100.2 108.6 113.6 118.6 127.3 min db min ras max 0.6 1 1 1 1 1 1 1 1 1 1 0.14 0.19 0.21 0.22 0.38 0.39 0.41 0.59 0.62 0.65 0.87 54.5 60.5 65.5 70.5 75.5 80.5 85.5 92 97 102 107 52.5 59.5 64.5 69.5 74.5 79.5 84.5 89.5 94.5 99.5 104.5 67.5 74.5 79.5 84.5 94.5 99.5 104.5 113 118 123 133 0.3 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 2la-bns910adllb 2la-bns911adllb 2la-bns912adllb 2la-bns913adllb 2la-bns914adllb 2la-bns915adllb 2la-bns916adllb 2la-bns917adllb 2la-bns918adllb 2la-bns919adllb 2la-bns920adllb 183

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