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FAFNIR SUPERPRECISION BEARINGS

Ultra-Light 3MM9300WI 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.

3MM9310WI

0.4529

4.7606

10.4166

12.5834

0.5471

3MM9311WI

0.4521

4.6811

10.3983

12.6017

0.5479

3MM9312WI

0.4554

5.0340

11.3851

13.6149

0.5446

3MM9313WI

0.4583

5.3867

12.3736

14.6264

0.5417

3MM9314WI

0.4535

4.8255

10.8839

13.1161

0.5465

3MM9300WI

0.4100

2.4380

4.9204

7.0796

0.5900

3MM9302WI

0.4248

2.9417

5.5225

7.4775

0.5752

3MM9303WI

0.4312

3.2273

6.4681

8.5319

0.5688

3MM9305WI

0.4356

3.4586

7.4044

9.5956

0.5644

3MM9320WI

0.4611

5.7794

13.3708

15.6292

0.5389

3MM9322WI

0.4641

6.2666

14.3858

16.6142

0.5359

3MM9324WI

0.4622

5.9485

13.8645

16.1355

0.5378

3MM9326WI

0.4606

5.7077

13.8171

16.1829

0.5394

3MM9328WI

0.4630

6.0804

14.8147

17.1853

0.5370

Bearing

FTF

BSF

BPFO

BPFI

FTF

Number

Fundamental Train

Ball Spin

Ball Pass Frequency

Ball Pass Frequency

Fundamental Train

Frequency

Frequency

Outer

Inner

Frequency

3MM9306WI

0.4439

3.9913

8.4346

10.5654

0.5561

3MM9307WI

0.4440

3.9990

8.4366

10.5634

0.5560

3MM9308WI

0.4437

3.9648

8.4295

10.5705

0.5563

3MM9309WI

0.4491

4.4029

9.4320

11.5680

0.5509

3MM9315WI

0.4561

5.1141

11.4020

13.5980

0.5439

3MM9316WI

0.4584

5.4026

12.3766

14.6234

0.5416

3MM9317WI

0.4579

5.3423

11.9047

14.0953

0.5421

3MM9318WI

0.4565

5.1696

11.8699

14.1301

0.5435

3MM9319WI

0.4585

5.4136

12.8371

15.1629

0.5415

3MM9330WI

0.4561

5.1141

12.3141

14.6859

0.5439

3MM9334WI

0.4586

5.4401

13.3007

15.6993

0.5414

3MM9340WI

0.4551

4.9987

12.2879

14.7121

0.5449

FREQUENCY COEFFICIENTS

(Inner Rotation)

(Outer Rotation)

102800

19

SUPERPRECISION BEARINGS

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