Timken Super Precision Bearings for Machine Tool Applications

Appendix
3MM200WI Series
FTF: Fundamental Train Frequency: the frequency at which the
cage will operate.
BPFO: Ball Pass Frequency Outer: the frequency at which a single
defect in the outer race will be detected.
BSF:
Ball Spin Frequency: the frequency at which a single defect
on a rolling element will be detected.
BPFI: Ball Pass Frequency Inner: the frequency at which a single
defect in the inner race will be detected.
Bearing Number FTF-Inner (1) BSF BPFO BPFI FTF-Outer (2)
3MM200WI 0.3668 1.6722 2.9345 5.0655 0.6332
3MM201WI 0.3774 1.7366 3.3966 5.6034 0.6226
3MM202WI 0.3921 2.0021 3.9212 6.0788 0.6079
3MM203WI 0.3928 2.0150 3.9277 6.0723 0.6072
3MM204WI 0.3929 2.0134 3.9290 6.0710 0.6071
3MM205WI 0.4070 2.3463 4.8841 7.1159 0.5930
3MM206WI 0.4064 2.3301 4.8769 7.1231 0.5936
3MM207WI 0.4061 2.3224 4.8734 7.1266 0.5939
3MM208WI 0.4043 2.2757 4.4476 6.5524 0.5957
3MM209WI 0.4117 2.4793 5.3519 7.6481 0.5883
3MM210WI 0.4180 2.6818 5.8519 8.1481 0.5820
3MM211WI 0.4166 2.6367 5.8323 8.1677 0.5834
3MM212WI 0.4155 2.6007 5.8171 8.1829 0.5845
3MM213WI 0.4185 2.7009 5.8587 8.1413 0.5815
3MM214WI 0.4189 2.7182 5.8639 8.1361 0.5811
3MM215WI 0.4228 2.8649 6.3421 8.6579 0.5772
3MM216WI 0.4216 2.8162 6.3241 8.6759 0.5784
3MM217WI .4205 2.7748 6.3076 8.6924 0.5795
3MM218WI 0.4196 2.7402 5.8738 8.1262 0.5804
3MM219WI 0.4187 2.7094 5.8618 8.1382 0.5813
3MM220WI 0.4179 2.6816 5.8506 8.1494 0.5821
3MM222WI 0.4166 2.6367 5.8323 8.1677 0.5834
3MM224WI 0.4184 2.7026 5.8573 8.1427 0.5816
3MM226WI 0.4241 2.9151 7.2100 9.7900 0.5759
3MM230WI 0.4179 2.6815 6.2681 8.7319 0.5821
AD
(1) For inner ring rotation.
(2) For outer ring rotation.
A
TIMKEN MACHINE TOOL CATALOG 233