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Appendix<br />
3MM9100WI Series<br />
FTF: Fundamental Train Frequency: the frequency at which the<br />
cage will operate.<br />
BPFO: Ball Pass Frequency Outer: the frequency at which a single<br />
defect in the outer race will be detected.<br />
BSF:<br />
Ball Spin Frequency: the frequency at which a single defect<br />
on a rolling element will be detected.<br />
BPFI: Ball Pass Frequency Inner: the frequency at which a single<br />
defect in the inner race will be detected.<br />
Bearing Number FTF-Inner (1) BSF BPFO BPFI FTF-Outer (2)<br />
3MM9100WI 0.3740 1.7697 2.9924 5.0076 0.6260<br />
3MM9101WI 0.3957 2.0724 3.9569 6.0431 0.6043<br />
3MM9102WI 0.4084 2.3844 4.4924 6.5076 0.5916<br />
3MM9103WI 0.4170 2.6493 4.5875 6.4125 0.5830<br />
3MM9104WI 0.4074 2.3573 4.4816 6.5184 0.5926<br />
3MM9105WI 0.4203 2.7625 5.4635 7.5365 0.5797<br />
3MM9106WI 0.4243 2.9475 5.9467 8.0533 0.5752<br />
3MM9107WI 0.4258 2.9877 6.3864 8.6136 0.5742<br />
3MM9108WI 0.4333 3.3411 6.9332 9.0668 0.5667<br />
3MM9109WI 0.4340 3.3761 7.3782 9.6218 0.5660<br />
3MM9110WI 0.4391 3.6669 7.9036 10.0964 0.5609<br />
3MM9111WI 0.4354 3.4544 7.8373 10.1627 0.5646<br />
3MM9112WI 0.4396 3.7005 8.3519 10.6481 0.5604<br />
3MM9113WI 0.4432 3.9461 8.8647 11.1353 0.5568<br />
3MM9114WI 0.4400 3.7251 8.3599 10.6401 0.5600<br />
3MM9115WI 0.4432 3.9379 8.8630 11.1370 0.5568<br />
3MM9116WI 0.4404 3.7441 8.8074 11.1926 0.5596<br />
3MM9117WI 0.4433 3.9400 9.3085 11.6915 0.5567<br />
3MM9118WI 0.4405 3.7587 8.8101 11.1899 0.5595<br />
3MM9119WI 0.4430 3.9267 9.3026 11.6974 0.5570<br />
3MM9120WI 0.4453 4.0945 9.7958 12.2042 0.5547<br />
3MM9121WI 0.4430 3.9235 9.3021 11.6979 0.5570<br />
3MM9122WI 0.4434 3.9573 9.7557 12.2443 0.5566<br />
3MM9124WI 0.4472 4.2479 10.2861 12.7139 0.5528<br />
3MM9126WI 0.4433 3.9462 9.3096 11.6904 0.5567<br />
3MM9128WI 0.4466 4.1914 9.8241 12.1759 0.5534<br />
3MM9130WI 0.4463 4.1705 9.8186 12.1814 0.5537<br />
3MM9132WI 0.4461 4.1515 9.8135 12.1865 0.5539<br />
3MM9134WI 0.4431 3.9318 9.7492 12.2508 0.5569<br />
3MM9136WI 0.4406 3.7588 8.8114 11.1886 0.5594<br />
3MM9140WI 0.4408 3.7719 8.8164 11.1836 0.5592<br />
(1) For inner ring rotation.<br />
(2) For outer ring rotation.<br />
AD<br />
A<br />
TIMKEN MACHINE TOOL CATALOG 227
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