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Consulting method

info@qibr.com

products

Crossed roller bearing

Customizable


  • Standards:GOST/ASTM/GB
  • Inner dimension (ID):50mm-1500mm
  • Outer dimension (OD):80mm-2000mm
  • Weight:1.14kg-850kg
  • Structures:outer ring, inner ring, rollers and cage
  • Applications:precision rotary indexing tables for machine tools, vertical and horizontal boring machine, vertical grinders, rotary surface grinders

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  • QIBR Model Selection
  • QIBR Customized Bearing
  • QIBR Process Control
  • QIBR Sort and Grade

Type

Main dimensions

Basic load rating (radial)

weight

inner ring

outer ring

Roller pitch circle diameter Dpw (mm)

width B /B1

Chamfer

C

C0

Kg

d(mm)

D(mm)

 

(mm)

r(min)

kN

kN

 

QIBR-RA5008 50 66 57 8 0.5 5.1 7.19 0.08
QIBR-RA6008 60 76 67 8 0.5 5.68 8.68 0.09
QIBR-RA7008 70 86 77 8 0.5 5.98 9.8 0.1
QIBR-RA8008 80 96 87 8 0.5 6.37 11.3 0.11
QIBR-RA9008 90 106 97 8 0.5 6.76 12.4 0.12
QIBR-RA10008 100 116 107 8 0.5 7.15 13.9 0.14
QIBR-RA11008 110 126 117 8 0.5 7.45 15 0.15
QIBR-RA12008 120 136 127 8 0.5 7.84 16.5 0.17
QIBR-RA13008 130 146 137 8 0.5 7.94 17.6 0.18
QIBR-RA14008 140 156 147 8 0.5 8.33 19.1 0.19
QIBR-RA15008 150 166 157 8 0.5 8.82 20.6 0.2
QIBR-RA16013 160 186 172 13 0.5 23.3 44.9 0.59
QIBR-RA17013 170 196 182 13 0.8 23.5 46.5 0.64
QIBR-RA18013 180 206 192 13 0.8 24.5 49.8 0.68
QIBR-RA19013 190 216 202 13 0.8 24.9 51.5 0.69
QIBR-RA20013 200 226 212 13 0.8 25.8 54.7 0.71

 

QIBR-RB3010 30 55 41.5 10 0.6 7.35 8.36 0.12
QIBR-RB3510 35 60 46.5 10 0.6 7.64 9.12 0.13
QIBR-RB4010 40 65 51.5 10 0.6 8.33 10.6 0.16
QIBR-RB4510 45 70 56.5 10 0.6 8.62 11.3 0.17
QIBR-RB5013 50 80 64 13 0.6 16.7 20.9 0.27
QIBR-RB6013 60 90 74 13 0.6 18 24.3 0.3
QIBR-RB7013 70 100 84 13 0.6 19.4 27.7 0.35
QIBR-RB8016 80 120 98 16 0.6 30.1 42.1 0.7
QIBR-RB9016 90 130 108 16 1 31.4 45.3 0.75
QIBR-RB10016 100 140 119.3 16 1 31.7 48.6 0.83
QIBR-RB10020   150 123 20 1 33.1 50.9 1.45
QIBR-RB11012 110 135 121.8 12 0.6 12.5 24.1 0.4
QIBR-RB11015   145 126.5 15 0.6 23.7 41.5 0.75
QIBR-RB11020 110 160 133 20 1 34 54 1.56
QIBR-RB12016 120 150 134.2 16 1.6 24.2 43.2 0.72
QIBR-RB12025   180 148.7 25 1.5 66.9 100 2.62
QIBR-RB13015 130 160 144.5 15 0.6 25 46.7 0.72
QIBR-RB13025   190 158 15 1.5 69.5 107 2.82
QIBR-RB14016 140 175 154.8 16 1 25.9 50.1 1
QIBR-RB14025   200 168 25 1.5 74.8 121 2.96
QIBR-RB15013 150 180 164 13 0.6 27 53.5 0.68
QIBR-RB15025   210 178 25 1.5 76.8 128 3.16
QIBR-RB15030   230 188 30 1.5 100 156 5.3
QIBR-RB16025 160 220 188.6 25 1.5 81.7 135 3.14
QIBR-RB17020 170 220 191 20 1.5 29 62.1 2.21
QIBR-RB18025 180 240 210 25 1.5 84 143 3.44
QIBR-RB19025 190 2 211.9 25 1 41.7 82.9 2.99
QIBR-RB20025 200 2 230 25 2 84.2 157 4
QIBR-RB20030   2 240 30 2 114 200 6.7
QIBR-RB20035   2 247.7 35 2 151 252 9.6
QIBR-RB22025 220 280 250.1 25 2 92.3 171 4.1
QIBR-RB24025 240 300 269 25 2.5 68.3 145 4.5
QIBR-RB25025 250 310 277.5 25 2.5 69.3 150 5
QIBR-RB25030   330 287.5 30 2.5 126 244 8.1
QIBR-RB25040   355 300.7 40 2.5 195 348 14.8
QIBR-RB30025 300 360 328 25 2.5 76.3 178 5.9
QIBR-RB30035   395 345 35 2.5 183 367 13.4
QIBR-RB30040 300 405 351.6 40 2.5 212 409 17.2
QIBR-RB35020 350 400 373.4 20 2.5 54.1 143 3.9
QIBR-RB40035 400 480 440.3 35 2.5 156 370 14.5
QIBR-RB40040   510 453.4 40 2.5 241 531 23.5
QIBR-RB45025 450 500 474 25 1 61.7 182 6.6
QIBR-RB50025 500 550 524.2 25 1 65.5 201 7.3
QIBR-RB50040   600 548.8 40 2.5 239 607 26
QIBR-RB50050   625 561.6 50 2.5 267 653 41.7
QIBR-RB60040 600 700 650 40 3 264 721 29
QIBR-RB70045 700 815 753.5 45 3 281 836 46
QIBR-RB80070 800 950 868.1 70 4 468 1330 105
QIBR-RB90070 900 1050 969 70 4 494 1490 120
QIBR-RB1000110 1000 1250 1114 110 5 1220 3220 360
QIBR-RB1250110 1250 1500 1365.8 110 5 1350 1970 440

 

QIBR-RE2008

20

36

29

8

0.5

3.23

3.1

0.04

QIBR-RE2508

25

41

34

8

0.5

3.63

3.83

0.05

QIBR-RE3010

30

55

43.5

10

0.6

7.35

8.36

0.12

QIBR-RE3510

35

60

48.5

10

0.6

7.64

9.12

0.13

QIBR-RE4010

40

65

53.5

10

0.6

8.33

10.6

0.16

QIBR-RE4510

45

70

58.5

10

0.6

8.62

11.3

0.17

QIBR-RE5013

50

80

66

13

0.6

16.7

20.9

0.27

QIBR-RE6013

60

90

76

13

0.6

18

24.3

0.3

QIBR-RE7013

70

100

86

13

0.6

19.4

27.7

0.35

QIBR-RE8016

80

120

101.4

16

0.6

30.1

42.1

0.7

QIBR-RE9016

90

130

112

16

1

31.4

45.3

0.75

QIBR-RE10016

100

140

121.1

16

1

31.7

48.6

0.83

QIBR-RE10020

 

150

127

20

1

33.1

50.9

1.45

QIBR-RE11012

110

135

123.3

12

0.6

12.5

24.1

0.4

QIBR-RE11015

 

145

129

15

0.6

23.7

41.5

0.75

QIBR-RE11020

 

160

137

20

1

34

54

1.56

QIBR-RE12016

120

150

136

16

0.6

24.2

43.2

0.72

QIBR-RE12025

 

180

152

25

1.5

66.9

100

2.62

QIBR-RE13015

130

160

146

15

0.6

25

46.7

0.72

QIBR-RE13025

 

190

162

25

1.5

69.5

107

2.82

QIBR-RE14016

140

175

160

16

1

25.9

50.1

1

QIBR-RE14025

 

200

172

25

1.5

74.8

121

2.96

QIBR-RE15013

150

180

166

13

0.6

27

53.5

0.68

QIBR-RE15025

 

210

182

25

1.5

76.8

128

3.16

QIBR-RE15030

 

230

192

30

1.5

100

156

5.3

QIBR-RE16025

160

220

192

25

1.5

81.7

135

3.14

QIBR-RE17020

170

220

196.1

20

1.5

29

62.1

2.21

QIBR-RE18025

180

240

210

25

1.5

84

143

3.44

QIBR-RE19025

190

240

219

25

1

41.7

82.9

2.99

QIBR-RE20025

200

260

230

25

2

84.2

157

4

QIBR-RE20030

 

280

240

30

2

114

200

6.7

QIBR-RE20035

 

295

247.7

35

2

151

252

9.6

QIBR-RE22025

220

280

250.1

25

2

92.3

171

4.1

QIBR-RE24025

240

300

272.5

25

2.5

68.3

145

4.5

QIBR-RE25025

250

310

280.9

25

2.5

69.3

150

5

QIBR-RE25030

 

330

287.5

30

2.5

126

244

8.1

QIBR-RE25040

 

355

300.7

40

2.5

195

348

14.8

QIBR-RE30025

300

360

332

25

2.5

75.7

178

5.9

QIBR-RE30035

 

395

345

35

2.5

183

367

13.4

QIBR-RE30040

 

405

351.6

40

2.5

212

409

17.2

QIBR-RE35020

350

400

376.6

20

2.5

54.1

143

3.9

QIBR-RE40035

400

480

440.3

35

2.5

156

370

14.5

QIBR-RE40040

 

510

453.4

40

2.5

241

531

23.5

QIBR-RE45025

450

500

476.6

25

1

61.7

182

6.6

QIBR-RE50025

500

550

526.6

25

1

65.5

201

7.3

QIBR-RE50040

 

600

548.8

40

2.5

239

607

26

QIBR-RE50050

 

625

561.6

50

2.5

267

653

41.7

QIBR-RE60040

600

700

650

40

3

264

721

29

Size

Main dimensions

Basic load rating    (radial)

weight

 

d

D

dp

width B B1

Chamfer

    C   

C0

Kg

 

(mm)

(mm)

(mm)

(mm)

(min)

    KN

KN

 

QIBR-RU42 20 70 41.5 12 0.6 7.35 8.35 0.29
QIBR-RU66 35 95 66 15 0.6 17.5 22.3 0.62
QIBR-RU85 55 120 85 15 0.6 20.3 29.5 1
QIBR-RU 124(G) 80 165 124 22 1 33.1 50.9 2.6
QIBR-RU 124X                
QIBR-RU148(G) 90 210 147.5 25 1.5 49.1 76.8 4.9
QIBR-RU 148X                
QIBR-RU 178(G) 115 240 178 28 1.5 80.3 135 6.8
QIBR-RU 178X                
QIBR-RU 228(G) 160 295 227.5 35 2 104 172 11.4
QIBR-RU 228X                
QIBR-RU 297(G) 210 380 297.3 40 2.5 156 281 21.3
QIBR-RU 297X                
QIBR-RU 445(G) 350 540 445.4 45 2.5 222 473 35.4

 

               

 

QIBR-SX011814 70 90 80 10 0.6 15.4 51 0.3
QIBR-SX011818 90 115 102 13 1 26 91 0.4
QIBR-SX011820 100 125 112 13 1 28 102 0.5
QIBR-SX011824 120 150 135 16 1 41 146 0.8
QIBR-SX011828 140 175 157 18 1.1 64 240 1.1
QIBR-SX011832 160 200 180 20 1.1 69 275 1.7
QIBR-SX011836 180 225 202 22 1.1 96 381 2.3
QIBR-SX011840 200 250 225 24 1.5 102 425 3.1
QIBR-SX011848 240 300 270 28 2 148 640 5.3
QIBR-SX011860 300 380 340 38 2.1 243 1070 12
QIBR-SX011868 340 420 380 38 2.1 260 1220 13.5
QIBR-SX011880 400 500 450 46 2.5 385 1800 24
QIBR-SX0118/500 500 620 560 56 3 560 2750 44

 

QIBR-CRBC 4010 QIBR-CRB 4010 40 65 10 0.3 4.28 5.14 0.15
QIBR-CRBC 5013 QIBR-CRB 5013 50 80 13 0.6 10.7 12.6 0.29
QIBR-CRBC 6013 QIBR-CRB 6013 60 90 13 0.6 11.6 14.6 0.33
QIBR-CRBC 7013 QIBR-CRB 7013 70 100 13 0.6 12.3 16.7 0.38
QIBR-CRBC 8016 QIBR-CRB 8016 80 120 16 0.6 18.2 25.5 0.74
QIBR-CRBC 9016 QIBR-CRB 9016 90 130 16 1 19.4 28.6 0.81
QIBR-CRBC10020 QIBR-CRB 10020 100 150 20 1 31.5 45.1 1.45
QIBR-CRBC11020 QIBR-CRB 11020 110 160 20 1 33.5 50.7 1.56
QIBR-CRBC 12025 QIBR-CRB 12025 120 180 25 1.5 47.7 70.5 2.62
QIBR-CRBC13025 QIBR-CRB 13025 130 190 25 1.5 49.2 74.8 2.82
QIBR-CRBC 14025 QIBR-CRB 14025 140 200 25 1.5 50.7 79.2 2.96
QIBR-CRBC15025 QIBR-CRB 15025 150 210 25 1.5 53.8 87.7 3.16
QIBR-CRBC15030 QIBR-CRB 15030 150 230 30 1.5 69.2 108 5.3
QIBR-CRBC20025 QIBR-CRB 20025 200 260 25 2 60.2 110 4
QIBR-CRBC20030 QIBR-CRB 20030 200 280 30 2 108 178 6.7
QIBR-CRBC20035 QIBR-CRB 20035 200 295 35 2 137 215 9.58

Shaft diameter (mm)

 

 

 

Identification number

 

 

 

Main dimensions

Basic dynamic load rating

weight

(mm)

 

 

inner ring d

outer diameter D

width B

Chamfer r(min)

C

(Kg)

 

 

 

 

(KN)

 

50 QIBR-CRBH 5013 A QIBR-CRBH 5013 A UU 50 80 13 0.6 17.3 0.29
60 QIBR-CRBH 6013 A QIBR-CRBH 6013 A UU 60 90 13 0.6 18.8 0.33
70 QIBR-CRBH 7013 A QIBR-CRBH 7013 A UU 70 100 13 0.6 20.1 0.38
80 QIBR-CRBH 8016 A QIBR-CRBH 8016 A UU 80 120 16 0.6 32.1 0.74
90 QIBR-CRBH 9016 A QIBR-CRBH 9016 A UU 90 130 16 0.6 33.1 0.81
100 QIBR-CRBH 10020 A QIBR-CRBH 10020 A UU 100 150 20 0.6 50.9 1.45
110 QIBR-CRBH 11020 A QIBR-CRBH 11020 A UU 110 160 20 0.6 52.4 1.56
120 HGCRBH 12025 A QIBR-CRBH 12025 A UU 120 180 25 1 73.4 2.62
130 QIBR-CRBH 13025 A QIBR-CRBH 13025 A UU 130 190 25 1 75.9 2.82
140 QIBR-CRBH 14025 A QIBR-CRBH 14025 A UU 140 200 25 1 81.9 2.96
150 QIBR-CRBH 15025 A HGCRBH 15025 A UU 150 210 25 1 84.3 3.16
200 QIBR-CRBH 20025 A QIBR-CRBH 20025 A UU 200 260 25 1 92.3 4
250 QIBR-CRBH 25025 A QIBR-CRBH 25025 A UU 250 310 25 1.5 102 4.97

 

QIBR-XR496051 203.2 279.4 31.75 1.5 41 49.2 800 6.5
QIBR-XR678052 330.2 457.2 63.5 3 80 98.4 620 35
QIBR-XR766051 457.2 609.6 63.5 3 106 133 520 51
QIBR-XR820060 580 760 80 5 106 209 300 100
QIBR-XR855053 685.8 914.4 79.375 3 180 224 260 150
QIBR-XR882055 901.7 1117.6 82.55 3 225 297 200 185
QIBR-XR889058 1028.7 1327.15 114.3 3 283 374 160 400
QIBR-XR897051 1549.4 1828.8 101.6 3 326 489 80 500
HJXR637050 300 400 37 1.5 47.2 60 720 13
HJXR652050 310 425 45 2.5 61.6 76.5 640 20
HJXR699050 370 495 50 3 70.2 89.2 600 30

 

QIBR-XR496051 203.2 279.4 31.75 1.5 41 49.2 800 6.5
QIBR-XR678052 330.2 457.2 63.5 3 80 98.4 620 35
QIBR-XR766051 457.2 609.6 63.5 3 106 133 520 51
QIBR-XR820060 580 760 80 5 106 209 300 100
QIBR-XR855053 685.8 914.4 79.375 3 180 224 260 150
QIBR-XR882055 901.7 1117.6 82.55 3 225 297 200 185
QIBR-XR889058 1028.7 1327.15 114.3 3 283 374 160 400
QIBR-XR897051 1549.4 1828.8 101.6 3 326 489 80 500
QIBR-JXR637050 300 400 37 1.5 47.2 60 720 13
QIBR-JXR652050 310 425 45 2.5 61.6 76.5 640 20
QIBR-JXR699050 370 495 50 3 70.2 89.2 600 30

Internal geometry and cage of the high-speed designed single-row cylindrical roller bearing are optimized for fitting high speed. The high speed design has less bearing rollers than the basic design bearings.

Basic design single row cylindrical roller bearing comes with centering roller and fiberglass-free PA66 cages with a maximum bore diameter of 80 mm (model number suffix TN) and larger sizes with fiberglass reinforced cages (model number suffix TN9). These bearings are especially suitable for high precision applications.

High speed single row cylindrical roller bearing

High speed double row cylinder roller bearing

Raw material

QIBR precision anti-friction bearings are usually made of chrome steel, which consist of about 1% carbon, 1.5% chromium and a small amount of manganese, silicon, and sometimes a small amount of molybdenum.

QIBR offers you a wide range of material options such as GCr15, 100Cr6, SKF 3, SUJ-2 etc. At the same time, some models of QIBR are available in stainless steel.

The rolling element can be ceramic ball (silicon nitride). Due to ceramic is kind of special material, the ceramic ball bearing has advantages of higher rotation speed, good self-lubricating property, and the rigidity is 15%-20% higher than the general bearing, and better high temperature resistance.

Bearing cage

The high-quality cage used by QIBR bearings ensure that the balls are evenly distributed in the bearing rings and can be rotated properly.

The cage has stamped steel wave type, stamped steel rivet type, nylon or phenolic plastic.

QIBR offers a wide range of advice and options depending on the operating conditions.

Seals

In order to prevent contaminants from entering the inside of the bearing, QIBR uses a metal dust cover or a rubber seal with a metal skeleton.

QIBR are able to choose two types as a combination seals according to your working conditions, or choose different kinds of seal materials, such as nitrile rubber BUNA, acrylic rubber HYCAR, fluoro rubber VITON.

Type of lubrication

Lubricating oil is the basic lubricant for ball bearings. Previously most of the lubricating oil was extracted from petroleum. Synthetic oils are now acceptable due to improved performance, such as two lipid synthetic oils, silicones and fluorocarbon synthetic oils. In general, lipid synthetic oils have better low temperature properties, lower volatility, and better temperature characteristics and viscosity compared than petroleum refined oils. Essentially all lubricants contain additives to inhibit chemical changes, prevent metal corrosion, and improve physical properties (antifoam, etc.).

The silicone and fluorocarbon synthetic oils that adopted by QIBR have lower volatility and wider temperature/viscosity characteristics.

Radial clearance

The radial clearance is the gap between the steel ball and the ring. QIBR is precisely tailored to customer's temperature conditions, interference fit, misalignment of the bearing's axis, required noise level and speed.

Service life and the rated load

The bearing life is the number of bearing rotations before the fatigue occurs on the ring or any rolling element (or the rotation time at a constant speed). However, the same set of bearings will not necessarily have the same life under the same conditions. In this case, the rated life is the number of rotations that 90% of the bearings in this group can reach or exceed before bearing weariness (or the rotation time at a constant speed). The service life of QIBR series bearings are 10%-20% longer than other bearings of the same model, through strict production process, high standard material selection, precision control.

The adopted steel balls

The steel balls in the deep groove ball bearings used by QIBR are mainly designed according to the load requirements of the bearing. The bearing ball sizes of different models are different, generally the value of rib coefficient Kd (ditch depth) range 0.35-0.40. , related to bearing diameter, such as 6000 series Kd = 0.35, 6400 series Kd = 0.40; 6200 and 6300 series, d ≤ 25mm take Kd = 0.35, d > 25mm take Kd = 0.40. Groove depth = Kd × steel ball diameter.


Bearing steel ball material comparison table
GB (China) Gcr15 GCr15SiMn
ASTM/AISI (USA) 52100 *
ГОСТ(Russia) ШX15 ШX15CГ
BS (UK) 534A99 *
JIS (Japan) SUJ2 SUJ3
NF (France) 100C6 100CrMn6
VDEh (Germany) 100Cr6 (1.3505) 1.352
Grade of rollers G3, G5, G10, G16, G20, G24, G28, G40, G60, G100, G200
Bearing Standard
Bearing Precision Grade
GOST Grade 0 Grade 6 Grade 5 Grade 4 Grade 2
ISO P0 P6 P5 P4 P2

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