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FAFNIR SUPERPRECISION BEARINGS

Extra-Light 2MM9100WI Series

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.

2MM9110WI

0.4352

3.6596

7.8332

10.1668

0.5648

2MM9111WI

0.4314

3.4469

7.7648

10.2352

0.5686

2MM9112WI

0.4358

3.6934

8.2803

10.7197

0.5642

2MM9113WI

0.4397

3.9394

8.7939

11.2061

0.5603

2MM9114WI

0.4362

3.7179

8.2875

10.7125

0.5638

2MM9100WI

0.3740

1.7697

2.9924

5.0076

0.6260

2MM9101WI

0.3902

2.0621

3.9015

6.0985

0.6098

2MM9102WI

0.4035

2.3754

4.8424

7.1576

0.5965

2MM9103WI

0.4126

2.6411

4.5390

6.4610

0.5874

2MM9104WI

0.4013

2.3458

4.4140

6.5860

0.5987

2MM9120WI

0.4418

4.0881

9.7198

12.2802

0.5582

2MM9121WI

0.4393

3.9167

9.2256

11.7744

0.5607

2MM9122WI

0.4399

3.9507

9.6778

12.3222

0.5601

2MM9124WI

0.4439

4.2417

10.2102

12.7898

0.5561

2MM9126WI

0.4397

3.9394

9.2336

11.7664

0.5603

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)

2MM9105WI

0.4150

2.7526

5.3947

7.6053

0.5850

2MM9106WI

0.4201

2.9387

5.8807

8.1193

0.5799

2MM9107WI

0.4210

2.9789

6.3157

8.6843

0.5790

2MM9108WI

0.4291

3.3332

6.8655

9.1345

0.5709

2MM9109WI

0.4298

3.3682

7.3063

9.6937

0.5702

2MM9115WI

0.4395

3.9312

8.7908

11.2092

0.5605

2MM9116WI

0.4365

3.7369

8.7306

11.2694

0.5635

2MM9117WI

0.4396

3.9332

9.2317

11.7683

0.5604

2MM9118WI

0.4367

3.7517

8.7350

11.2650

0.5633

2MM9119WI

0.4394

3.9200

9.2271

11.7729

0.5606

2MM9128WI

0.4431

4.1850

9.7491

12.2509

0.5569

2MM9130WI

0.4428

4.1640

9.7426

12.2574

0.5572

2MM9132WI

0.4426

4.1450

9.7367

12.2633

0.5574

2MM9134WI

0.4394

3.9247

9.6660

12.3340

0.5606

2MM9140WI

0.4369

3.7645

8.7378

11.2622

0.5631

FREQUENCY COEFFICIENTS

102800

45

SUPERPRECISION BEARINGS

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