Double row precision cylindrical roller bearings

Double row precision cylindrical roller bearings
Model:NN3000
Brand:DRZ
Origin:Made In China
Category:Industrial Supplies / Machine Hardware / Insulation
Label:cylindrical , precision , drz bearings
Price: ¥100 / pc
Min. Order:10 pc
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Product Description

Particularly where large bearings are invo ed, it is often necessary to make provisions duringthe design stage, to facilitate mounting and dismounting of a bearing, or even to make it possible at all.

 

For super precision cylindrical roller bearings with a bore diameter d > 80 mm, DRZ recommends

the oil injection method. With the oil injection method, oil under high pressure is injected via ducts and distribution grooves

between the bearing and bearing seat to form an oil film . This oil film separates the mating surfaces and considerably reduces the friction between them and virtually eliminates the risk of damaging the bearing or the spindle shaft. This method is typically used when mounting or dismounting bearings directly on tapered shaft seats. Where bearings with a cylindrical bore are concerned, the oil injection method can only be used for dismounting. To apply the oil injection method, the spindle must contain ducts and grooves .

 

 

 

Bearings

Demensions

RPM

stiffness

Weight

d

D

b

Rmin

E

n

s

Oil

Lub.

Rr

Ra

Mm

KN

r/min

Kg

NN3006K

30

55

19

1

48.5

4.8

1.4

29

34

16000

19000

0.19

NN3007K

35

62

20

1

55

4.8

1.4

35.5

44

14000

17000

0.25

NN3008K

40

68

21

1

61

4.8

1.4

45

58.5

12000

15000

0.31

NN3009K

45

75

23

1

67.5

4.8

1.7

54

72

11000

14000

0.4

NN3010K

50

80

23

1

72.5

4.8

1.7

57

80

10000

13000

0.41

NN3011K

55

90

26

1.1

81

4.8

1.9

72

100

9000

11000

0.65

NN3012K

60

95

26

1.1

86.1

4.8

1.9

75

110

8500

10000

0.67

NN3013K

65

100

26

1.1

91

4.8

1.9

76.5

116

8000

9500

0.74

NN3014K

70

110

30

1.1

100

6.5

2.3

98

150

7000

8500

1.07

NN3015K

75

115

30

1.1

105

6.5

2.3

100

156

6700

8000

1.13

NN3016K

80

125

34

1.1

113

6.5

2.5

120

186

6300

7500

1.56

NN3017K

85

130

34

1.1

118

6.5

2.5

125

200

6000

7000

1.64

NN3018K

90

140

37

1.5

127

6.5

2.5

140

225

5600

6700

2.13

NN3019K

95

145

37

1.5

132

6.5

2.5

143

236

5300

6300

2.23

NN3020K

100

150

37

1.5

137

6.5

2.5

146

245

5300

6300

2.32

NN3021K

105

160

41

2

146

6.5

2.6

190

310

4800

5600

2.96

NN3022K

110

170

45

2

155

6.5

2.8

220

360

4500

5300

3.76

NN3024K

120

180

46

2

165

6.5

3.1

232

390

4300

5000

4.1

NN3026K

130

200

52

2

182

9.5

3.3

290

500

3800

4500

6.04

NN3028K

140

210

53

2

192

9.5

3.3

300

520

3600

4300

6.48

NN3030K

150

225

56

2.1

206

9.5

3.7

335

585

3400

4000

7.88

NN3032K

160

240

60

2.1

219

9.5

4.2

375

670

3200

3800

9.57

NN3034K

170

260

67

2.1

236

9.5

4.5

450

800

3000

3600

13

NN3036K

180

280

74

2.1

255

12.2

4.8

570

1000

2800

3400

17

NN3038K

190

290

75

2.1

265

12.2

4.8

585

1040

2600

3200

18

NN3040K

200

310

82

2.1

282

12.2

5.3

655

1200

2400

3000

23

NN3044K

220

340

90

3

310

15

5.5

800

1460

2200

2800

32.9

NN3048K

240

360

92

3

330

15

6

850

1560

2000

2600

36

NN3052K

260

400

104

4

364

15

6.5

1060

2000

1900

2400

48

Double row precision cylindrical roller bearings 1Double row precision cylindrical roller bearings 2Double row precision cylindrical roller bearings 3Double row precision cylindrical roller bearings 4Double row precision cylindrical roller bearings 5

Member Information

Luoyang Derun Precision Machine Tool Bearings co.,ltd.
Country/Region:He Nan - China
Business Nature:Manufacturer
Phone:13903792631
Contact:yancheng wang (sales)
Last Online:31 May, 2018