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What's Clearance of Slewing Ring Bearings?
 

What's Clearance of Slewing Ring Bearings?

The clearance of slewing bearing is mainly used to equalize the manufacture & selling erros,which is caused by slewing bearing’s support part and application’s assembing part,in order to ensure the bearing ring operation.It is listed in form 4~7 with the data of clearance,which is based on slewing bearing’s structure,tolerance grade,and rolling element’s diameter.

We also can supply slewing bearing with preload,0 even minus clearance.

Form4 Axial clearance of four point contact ball slewing bearing                                     Unit:μm

Dpm

mm

Tolerance Grade

G

E

D

Axialclearance

Exceed

To

Min

Max

Min

Max

Min

Max

280

450

70

170

50

130

30

90

450

710

100

220

70

170

40

120

710

1120

120

280

100

220

50

150

1120

1800

150

350

100

260

60

180

1800

2800

200

440

150

350

80

240

2800

4500

260

540

200

440

100

300


Form 5 Axial clearance fo double row ball slewing bearing                                           Unit:μm

Dpm

mm

Tolerance Grade

G

G

E

G

G

Axialclearance

Exceed

To

Min

Max

Min

Max

Min

Max

280

450

50

130

30

90

25

70

450

710

70

170

40

120

30

90

710

1120

100

220

50

150

40

120

1120

1800

100

260

60

180

40

140

1800

2800

150

350

80

240

60

180

2800

4500

200

440

100

300

80

240


Form 6 Axial clearance of crossed roller slewing bearing                                             Unit:μm

Dpm

mm

Tolerance Grade

G

G

E

G

G

Axialclearance

Exceed

To

Min

Max

Min

Max

Min

Max

280

450

50

130

30

90

25

70

450

710

70

170

40

120

30

90

710

1120

100

220

50

150

40

120

1120

1800

100

260

60

180

40

140

1800

2800

150

350

80

240

60

180

2800

4500

200

440

100

300

80

240


From7 Axial clearance of three-row slewing bearing                                                   Unit:μm

Dpm

mm

Tolercace Grade

G

E

D

Axial Clearance

Radial

Clearnace

Axial Clearance

Radial

Clearnace

Axial Clearance

Radial

Clearnace

Exceed

To

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

Min

Max

280

450

30

90

50

130

25

70

30

90

10

50

25

70

450

710

40

120

70

170

30

90

40

120

15

65

30

90

710

1120

50

150

100

220

40

120

50

150

20

80

40

120

1120

1800

60

180

100

260

40

140

60

180

20

100

40

140

1800

2800

80

240

150

350

60

180

80

240

30

130

60

180

2800

4500

100

300

200

440

80

240

100

300

40

160

80

240


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