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| | | Vibration Analysis Spherical Roller Bearings | | |
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| | | Browning 22500 Series Spherical Roller Bearings - Vibration Analysis The following is the procedure which should be followed in calculating the fundamental frequencies for Browning 22500 series spherical roller bearings. 1. The bore size for each bearing to be analyzed must be known. 2. Once the bore size is known the appropriate vibration factors (O,I,B and F) can be chosen from Table 59. 3. These factors can then be used to calculate the fundamental bearing frequencies as follows: Roller Spin Frequency (Hz) = O x RPM Inner Race Pass Frequency (Hz) = I x RPM Outer Race Pass Frequency (Hz) = B x RPM Fundamental Train Frequency (Hz) = F x RPM - shaft rotation | | |
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| | | Table 59 Vibration Information | | |
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| | | | | | | | | | | | | SHAFT SIZE (INCHES) | FACTOR FOR ROLLER SPIN O | FACTOR FOR INNER ROLLER PASS I | FACTOR FOR OUTER ROLLER PASS B | FACTOR FOR FUND. TRAIN F | | | | 2 7/16" 2 1/2" | 0.1268 | 0.1786 | 0.1381 | 0.0073 | | | | | | | | | | | | 2 11/16" 2 3/4" | 0.1253 | 0.1788 | 0.1378 | 0.0073 | | | | | | | | | | | | 2 15/16" 3" | 0.1209 | 0.1701 | 0.1299 | 0.0072 | | | | | | | | | | | | 3 3/16" | 0.1213 | 0.17 | 0.13 | 0.0072 | | | | 3 7/16" 3 1/2" | 0.1185 | 0.1799 | 0.1366 | 0.0072 | | | | | | | | | | | | 3 11/16" 3 15/16" 4" | 0.1162 | 0.1803 | 0.1364 | 0.0072 | | | | | | | | | | | | 4 3/16" | 0.1173 | 0.1801 | 0.1366 | 0.0072 | | | | 4 7/16" 4 1/2" | 0.1186 | 0.1798 | 0.1368 | 0.0072 | | | | | | | | | | | | 4 15/16" 5" | 0.1189 | 0.1798 | 0.1369 | 0.0072 | | | | | | | | | | | | 5 3/16" | 0.1154 | 0.1804 | 0.1362 | 0.0072 | | | | 5 7/16" 5 1/2" | 0.1157 | 0.1804 | 0.1363 | 0.0072 | | | | 5 15/16" 6" | 0.1155 | 0.1804 | 0.1363 | 0.0072 | | | | | | | | | | | | 6 7/16" 6 1/2" | 0.1194 | 0.1892 | 0.1442 | 0.0072 | | | | | | | | | | | | 6 15/16" 7" | 0.1180 | 0.1800 | 0.1367 | 0.0072 | | | | | | | | | | | | 7 3/16" | 0.1155 | 0.1804 | 0.1363 | 0.0072 | | | | 7 1/2" 7 15/16" 8" | 0.1155 | 0.1803 | 0.1364 | 0.0072 | | | | | | | | | | | | | | | | | | | | |
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| | | See page 152 for trademark acknowledgments. | | |
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