Page 147 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 22.1 23.3 26.0 27.2 28.4 31.1 32.3 35.1 36.2 39.0 40.2 41.3 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 54.1 58.4 65.2 70.1 75.2 81.9 86.8 93.7 98.6 105.3 110.4 115.4 d2 53.3 57.6 64.2 69.2 74.2 80.9 85.9 92.6 97.6 104.2 109.2 114.2 d1 65 70.5 78.7 83.5 88.2 96.8 102.2 110.2 115.4 123.2 128.1 132.7 min db min ras max 1 1 1 1 1 1 1 1 1 1.5 1.5 1.5 0.25 0.26 0.38 0.41 0.44 0.62 0.65 0.88 0.93 1.22 1.27 1.32 50.5 55.5 62 67 72 77 82 87 92 98.5 103.5 108.5 49.5 54.5 59.5 64.5 69.5 74.5 79.5 84.5 89.5 95.5 100.5 105.5 69.5 74.5 83 88 93 103 108 118 123 131.5 136.5 141.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.6 1 1 1 5s-2la-bns009adllb 5s-2la-bns010adllb 5s-2la-bns011adllb 5s-2la-bns012adllb 5s-2la-bns013adllb 5s-2la-bns014adllb 5s-2la-bns015adllb 5s-2la-bns016adllb 5s-2la-bns017adllb 5s-2la-bns018adllb 5s-2la-bns019adllb 5s-2la-bns020adllb 201

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