Ina fag bearing solutions for large size machinery en

Page 129

Machining tolerances of the tapered shaft Tolerances of the tapered shaft for tolerance class SP

The machining tolerances of the tapered shaft for bearings of tolerance class SP or UP are recommendations, see tables. Nominal shaft diameter (bearing bore) d mm

Roundness

Flatness

Axial runout

Mean roughness

␮m

t2 ␮m

t3 ␮m

t4 ␮m

Ra ␮m

over

incl.

18

30

+73

+64

1

1

1,5

0,2

30

40

+91

+80

1

1

1,5

0,2

40

50

+108

+97

1

1

1,5

0,2

50

65

+135

+122

1,2

1,2

2

0,2

65

80

+159

+146

1,2

1,2

2

0,2

80

100

+193

+178

1,5

1,5

2,5

0,2

100

120

+225

+210

1,5

1,5

2,5

0,2

120

140

+266

+248

2

2

3,5

0,2

140

160

+298

+280

2

2

3,5

0,2

160

180

+328

+310

2

2

3,5

0,2

180

200

+370

+350

3

3

4,5

0,2

200

225

+405

+385

3

3

4,5

0,2

225

250

+445

+425

3

3

4,5

0,2

250

280

+498

+475

4

4

6

0,4

280

315

+548

+525

4

4

6

0,4

315

355

+615

+590

5

5

7

0,4

355

400

+685

+660

5

5

7

0,4

400

450

+767

+740

6

6

8

0,4

450

500

+847

+820

6

6

8

0,4

500

560

+928

+900

7

7

9

0,4

560

630

+1008

+980

7

7

9

0,4

630

710

+1092

+1060

8

8

10

0,4

1)

Schaeffler Technologies

Deviation of small taper diameter1)

In relation to the nominal diameter of the shaft d, see section Calculation example, page 130.

TPI 205

129


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