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FAFNIR SUPERPRECISION BEARINGS

Extra-Light MM9100K Series Deep Groove Conrad

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.

MM9107K

0.4182

2.9732

4.5998

6.4002

0.5818

MM9108K

0.4265

3.3281

5.1181

6.8819

0.5735

MM9109K

0.4272

3.3632

5.5541

7.4459

0.5728

MM9110K

0.4328

3.6550

6.0597

7.9403

0.5672

MM9111K

0.4288

3.4419

5.5749

7.4251

0.5712

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)

MM9101K MM9103K MM9104K MM9105K MM9106K

0.3846 0.4082 0.3976 0.4118 0.4171

2.0513 2.6325 2.3386 2.7464 2.9329

3.0769 4.0823 3.1807 4.1180 4.5881

4.9231 5.9177 4.8193 5.8820 6.4119

0.6154 0.5918 0.6024 0.5882 0.5829

MM9115K

0.4373

3.9268

6.5600

8.4400

0.5627

MM9116K

0.4342

3.7322

6.0785

7.9215

0.5658

MM9117K

0.4374

3.9288

6.5605

8.4395

0.5626

MM9118K

0.4344

3.7471

6.0820

7.9180

0.5656

MM9120K

0.4397

4.0839

6.5951

8.4049

0.5603

FREQUENCY COEFFICIENTS

MM9112K

0.4334

3.6888

6.0680

7.9320

0.5666

MM9113K

0.4375

3.9351

6.5619

8.4381

0.5625

MM9114K

0.4339

3.7134

6.0740

7.9260

0.5661

MM9122K

0.4376

3.9462

6.1269

7.8731

0.5624

MM9124K

0.4418

4.2376

6.6271

8.3729

0.5582

MM9126K

0.4375

3.9351

6.1245

7.8755

0.5625

54

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