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FAFNIR SUPERPRECISION BEARINGS

Extra-Light 2MMV9100HX Series

Frequency Coefficients Superprecision Bearings

FTF

Fundamental Train Frequency: The frequency at which the retainer will operate.

BSF

Ball Spin Frequency: The frequency at which a single defect on a rolling element will be detected.

BPFO

Ball Pass Frequency Outer: The frequency at which a single defect in the outer race will be detected.

BPFI

Ball Pass Frequency Inner: The frequency at which a single defect in the inner race will be detected.

2MMV9105HX

0.4043

2.4274

5.2560

7.7440

0.5957

2MMV9106HX

0.4099

2.5903

5.3292

7.6708

0.5901

2MMV9107HX

0.4211

2.9789

6.3162

8.6838

0.5789

2MMV9108HX

0.4291

3.3332

6.8659

9.1341

0.5709

2MMV9109HX

0.4234

3.0758

6.3517

8.6483

0.5766

Bearing Number

FTF

BSF

BPFO

BPFI

FTF

Fundamental Train Frequency (Inner Rotation)

Ball Spin Frequency

Ball Pass Frequency Outer

Ball Pass Frequency Inner

Fundamental Train Frequency (Outer Rotation)

2MMV9100HX 2MMV9101HX 2MMV9102HX 2MMV9103HX 2MMV9104HX

0.3834 0.3852 0.4023 0.3969 0.4012

1.9496 1.9890 2.3729 2.2403 2.3457

3.8344 3.8517 4.8273 4.7634 4.8147

6.1656 6.1483 7.1727 7.2366 7.1853

0.6166 0.6148 0.5977 0.6031 0.5988

2MMV9115HX

0.4517

4.9403

11.7429

14.2571

0.5483

2MMV9116HX

0.4477

4.5613

11.1913

13.8087

0.5523

2MMV9117HX

0.4502

4.7888

11.7039

14.2961

0.5498

2MMV9118HX

0.4534

5.1295

12.6953

15.3047

0.5466

2MMV9119HX

0.4490

4.6752

11.6731

14.3269

0.5510

EXTRA-LIGHT – 2MMV9100HX SERIES

2MMV9110HX

0.4293

3.3440

6.8694

9.1306

0.5707

2MMV9111HX

0.4472

4.5160

10.7329

13.2671

0.5528

2MMV9112HX

0.4506

4.8343

11.2653

13.7347

0.5494

2MMV9113HX

0.4490

4.6751

11.2241

13.7759

0.5510

2MMV9114HX

0.4490

4.6752

11.2241

13.7759

0.5510

2MMV9120HX

0.4510

4.8740

12.1772

14.8228

0.5490

2MMV9121HX

0.4538

5.1719

12.7058

15.2942

0.5462

2MMV9122HX

0.4563

5.4696

13.6877

16.3123

0.5437

2MMV9124HX

0.4542

5.2052

13.1707

15.8293

0.5458

102800

37

SUPERPRECISION BEARINGS

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