Question

4.21 A bearing is required to provide axial location and support a radial load of 940 N for a shaft of 17 mm nominal diameter spinning at 570rpm The desired life is 10 years continuous operation From the limited range available in Tables 4.7 to 4.9, select and specify an appropriate bearing justifying the choice 4.22 A bearing is required to support an equivalen radial load of 1290 N. The nominal diameter of the shaft is 25 mm and its design speed is 730pm The desired life is 2 years continuous operation. If the bearing should support the load and povide axial location, then from the limited range avail able in Tables 4.7 to 4.9, select and specify an appropriate bearing, justifying the choice 23 A bearing is required to support an equivalent

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Answer 1

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Table 15.5 (Contd) Princip Basic load ratings (V) Designation dimensions (m)ratings ( Designation Co 5 143069561801 4160 335061808 68 9 13300 7800 16008 6815 16800 9300 8018 30700 16600 90 23 41000 22400 885070 2240 2 0 6890 3100 6201 1 6008 37 129750 4650 5 1560 81561802 6002 6202 6302 6308 32 95590 2500 35 7800 3550 421311400 5400 26 5 1680930 61803 35 0 6050 2800 40 12 9560 4500 47 14 13500 6550 62 72290011800 110 27 63700 36500 6050 3800 61809 75 10 15600 930016009 6009 6209 6309 75 16 21200 12200 85 19 33200 18600 10025 52700 30000 120 29 76100 45500 6202 6303 6403 20 32 72700 1500 61804 425061810 8010 16300 10000 16010 6240 8016 21600 13200 90 20 35100 19600 110 27 61800 36000 130 31 87100 52000 42 87020 340016404 42 12 9360 4500 4714 12700 6200 52 5 15900 7800 72 19 30700 16600 8320 560061811 90 1119500 12200 16011 25 37 7 3120 1960 61805 478 7610 4000 16005 6005 6205 6305 9018 28100 17000 100 21 43600 25000 120 2971500 41500 140 3399500 63000 47 12 11200 5600 5215 14000 6950 62 17 22500 11400 80 21 35800 19600 8710 610061812 320016012 60 78 10 42 7 3120 2080 61806 5S 9 11200 5850 16006 6006 6206 6306 951119900 1 9518 29600 18300 110 2247500 28000 130 3181900 48000 150 35 108000 69500 55 13 13300 6800 16 19500 10000 19 28100 14600 90 23 43600 24000 65 85 10 11700 8300 61813 100 11 21200 14600 16013 100 1830700 19600 120 2355900, 34000 140 33 92300 56000 160 37. 119000 78000 74030 3000 61807 912400 6950 16007 62 14 5900 8500 72 17 25500 13700 6207 0Sc2328000 6307 6407 6413 2 5530031000 Contd)