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FAFNIR SUPERPRECISION BEARINGS

Light 3MM200WI 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.

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

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)

3MM200WI 3MM201WI 3MM202WI 3MM203WI 3MM204WI

0.3668 0.3774 0.3921 0.3928 0.3929

1.6722 1.7366 2.0021 2.0150 2.0134

2.9345 3.3966 3.9212 3.9277 3.9290

5.0655 5.6034 6.0788 6.0723 6.0710

0.6332 0.6226 0.6079 0.6072 0.6071

3MM215WI

0.4228

2.8649

6.3421

8.6579

0.5772

3MM216WI

0.4216

2.8162

6.3241

8.6759

0.5784

3MM217WI

0.4205

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

FREQUENCY COEFFICIENTS

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

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

102800

61

SUPERPRECISION BEARINGS

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