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YRT Rotary bearing

【Time:2012-07-12】【Sources:The station】【Author:Administrator】【Click:3705】

YRT Rotary bearing

Axial/radial bearings YRT:YRT
YRT bearing consists of thrust/radial housing washer,a thrust/radial shaft,two Axial needle roller and cage assemblies and a group of radial cylindrical roller.Housing washer and shaft washer have equally sspaced fitting bolt.This kind of bearings have high axial load and radial load,and high tilting rigidity and high precision.This bearing can be used to the machine tool and other high precision machinery of the rotary table or sub-set,and also can be used for chuck,measuring instruments and test equipment and rotary table configuration.This bearing requires higher quality or the parts to match it.You must control screw tightening torque when install it。

Bearing features:
1.   High precision: precision at P4, P2.
2.   High rigidity: YRT series bearings are with preload.
3.   High load capacity: bearings can support axial load, radial load and tilting  load.
4.   High speed: YRTS series bearings can be applied in the high speed working condition.
       
Application scope:
     YRT series bearings are widely used high precision rotary table, vertical grinding machine, dividing head, hobbing machine, gear generator axis etc.  

 

bearing type
( Click on the following types and check  the details of products)

boundary dimensions

fixing holes

d

D

H

H1

C

D1

J

J1

inner ring

outer ring

 unit: mm

d1

d2

a

 quantity

d3

quantity

mm

mm

YRT50

50

126

30

20

10

105

63

116

5.6

9

4.2

10

5.6

12

YRT80

80

146

35

23.35

12

130

92

138

5.6

10

4.2

10

4.6

12

YRT100

100

185

38

25

12

160

112

170

5.6

10

5.4

16

5.6

15

YRT120

120

210

40

26

12

184

135

195

7

11

6.2

22

7

21

YRT150

150

240

40

26

12

214

165

225

7

11

6.2

34

7

33

YRT180

180

280

43

29

15

244

194

260

7

11

6.2

46

7

45

YRT200

200

300

45

30

15

274

215

285

7

11

6.2

46

7

45

YRT260

260

385

55

36.5

18

345

280

365

9.3

15

8.2

34

9.3

33

YRT325

325

450

60

40

20

415

342

430

9.3

15

8.2

34

9.3

33

YRT395

395

525

65

42.5

20

486

415

505

9.3

15

8.2

46

9.3

45

YRT460

460

600

70

46

22

560

482

580

10

15

8.2

46

10

45

YRT580

580

750

90

60

30

700

610

720

11.4

18

11

46

11.4

42

YRT650

650

870

122

78

34

800

680

830

14

20

13

46

14

42

YRT850

850

1095

124

80.5

37

1018

890

1055

18.5

26

17

57

18.5

54

YRT950

950

1200

132

86

40

1130

990

1160

18.5

26

17

57

18.5

54

YRT1030

1030

1300

145

92.5

40

1215

1075

1255

18.5

26

17

66

18.5

66

YRT1200 1200 1490 164 108 52 1410 1240 1445 18.5 26 17 66 18.5 66

YRT Rotary Bearing  
bearing type
boundary dimensions
radial runout and axial runout(µm)
d
D
H
H1
Nominal dimension
high
low
Nominal dimension
high
nbsp;low
Nominal dimension
Nominal dimension
Deviation
  unit: mm
YRT50
50
0
-0.008
126
0
-0.011
30
20
±0.125
2
YRT80
80
0
-0.009
146
0
-0.011
35
23.35
±0.15
3
YRT100
100
0
-0.01
185
0
-0.015
38
25
±0.175
3
YRT120
120
0
-0.01
210
0
-0.015
40
26
±0.175
3
YRT150
150
0
-0.013
240
0
-0.015
40
26
±0.175
3
YRT180
180
0
-0.013
280
0
-0.018
43
29
±0.175
4
YRT200
200
0
-0.015
300
0
-0.018
45
30
±0.175
4
YRT260
260
0
-0.018
385
0
-0.02
55
36.5
±0.2
6
YRT325
325
0
-0.023
450
0
-0.023
60
40
±0.2
6
YRT395
395
0
-0.023
525
0
-0.028
65
42.5
±0.2
6
YRT460
460
0
-0.023
600
0
-0.028
70
46
±0.225
6
YRT580
580
0
-0.025
750
0
-0.035
90
60
±0.25
10
YRT650
650
0
-0.038
870
0
-0.05
122
78
±0.25
10
YRT850
850
0
-0.05
1095
0
-0.063
124
80.5
±0.3
12
YRT950
950
0
-0.05
1200
0
-0.063
132
86
±0.3
12
YRT1030
1030
0
  -0.072
1300
0
-0.08
145
92.5
±0.4
15
YRT1200       1200      0   -0.075       1490      0  -0.085        164        108       ±0.3            15 

 

  

bearing type

Number of retaining screws

Extraction thread hole

1)Number of pitches X angle of pitches

Screw tightening torque

Basic load rating

Limiting speed

3)Bearing frictional torque

axial

radial

dynamic load

static load

dynamic load

static load

MA2)

Ca

Coa

Cr

Cor

grease

G

quantity

quantity×t

Nm

KN

r/min

Nm

YRT50

2

12×30°

8.5

38

158

28.5

49.5

440

2.5

YRT80

2

12×30°

8.5

56

255

42.5

100

530

3

YRT100

2

M5

3

18×20°

8.5

76.5

415

47.5

120

430

3

YRT120

2

M8

3

24×15°

14

102

540

52

143

340

7

YRT150

2

M8

3

36×10°

14

112

630

56

170

320

10

YRT180

2

M8

3

48×7.5°

14

118

710

69.5

200

280

12

YRT200

2

M8

3

48×7.5°

14

120

765

81.5

220

260

14

YRT260

2

M12

3

36×10°

34

160

1060

93

290

200

20

YRT325

2

M12

3

36×10°

34

275

1930

120

345

170

40

YRT395

2

M12

3

48×7.5°

34

300

2280

186

655

140

55

YRT460

2

M12

3

48×7.5°

34

355

2800

200

765

120

70

YRT580 2

M12

6

48×7.5°

68 490 4250 228 965 80 140

YRT650

2

M12

6

48×7.5°

116

1040

8000

490

1800

65

200

YRT850

3

M16

6

60×6°

284

1000

8650

455

1730

50

300

YRT950

3

M16

6

60×6°

284

1290

11400

530

2040

40

600

YRT1030

6

M16

6

72×5°

284

1380

12000

620

2650

35

800

YRT1200 6

M16

6

72×5°

300 1435 12850 745 2800 25 1000

 Remark:
1)including retaining screws and threaded extraction holes.
2)note install screws.
3)Bearing frictional torque must test by speed 5r/min , the sartup frictonal torque should be 2-2.5 times of listed data . 
 

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