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RB Cross roller bearings

【Time:2012-07-13】【Sources:The station】【Author:Administrator】【Click:2187】

RB Cross roller bearings

With the Cross-Roller Ring, cylindrical rollers are arranged crosswise, with each roller perpendicular to the adjacent roller, in a 90V groove, separated from each other by a spacer retainer.  This design allows just one bearing to receive loads in all directions including, radial, axial and moment loads. Since the Cross-Roller Ring achieves high rigidity despite the minimum possible dimensions of the inner and outer rings, it is optimal for applications such as joints and swiveling units of industrial robots, swiveling tables of machining centers, rotary units of manipulators, precision rotary tables, medical equipment, measuring instruments and IC manufacturing machines.
Bearing features:
1.     High precision: precision at P4, P2.
2.     High rigidity: this series bearings are with preload.
3.     High load capacity: this series bearings can support axial load, radial load, and tilting load.
4.     Small volume: this series bearings can save space for the machine.
Application scope:
Crossed cylindrical roller bearings are widely applied in the precision rotary table, rotary joint of manipulator, medical equipment, and measuring instrument etc.

Outer ring division type ,Inner rotating
This model is the basic type of the Crossed Roller Collar .with a divided outside and a inner ring which can’t be separated with the main body. 
This type is most suitable for the part that need a inner ring with high precise . For example ,it is suitable for the rotary part of the indexingtable of the toolroom machine
 
Identification number
nbsp;Identification number
( Click on the following types and check  the details of products)
Main dimensions
Shoulder height
Basic load rating(radial)
 weight

 Inner 
ring
 d

outer ring
D
 Roller pitch circle diameter dp
 width
B B1
Greasing hole
r
ds
Dh
C
kN
Co
kN
Kg
a
b
50
50
80
64
13
2.5
1.6
1
57.4
72
16.7
20.9
0.27
60
60
90
74
13
2.5
1.6
1
68
82
18
24.3
0.3
70
70
100
84
13
2.5
1.6
1
78
92
19.4
27.7
0.35
80
80
120
98
16
3
1.6
1
91
111
30.1
42.1
0.7
90
90
130
108
16
3
1.6
1.5
98
118
31.4
45.3
0.75
100
100
140
119.3
16
3.5
1.6
1.5
109
129
31.7
48.6
0.83
150
123
20
3.5
1.6
1.5
113
133
33.1
50.9
1.45
110
110
135
121.8
12
2.5
1
1
117
127
12.5
24.1
0.4
145
126.5
15
3.5
1.6
1
122
136
23.7
41.5
0.75
160
133
20
3.5
1.6
1.5
120
140
34.0
54.0
1.56
120
120
150
134.2
16
3.5
1.6
1
127
141
24.2
43.2
0.72
180
148.7
25
3.5
2
2
133
164
66.9
100
2.62
130
130
160
144.5
15
3.5
1.6
1
137
152
25
46.7
0.72
190
158
25
3.5
2
2
143
174
69.5
107
2.82
140
140
175
154.8
16
2.5
1.6
1.5
147
162
25.9
50.1
1
200
168
25
3.5
2
2
154
185
74.8
121
2.96
150
150
180
164
13
2.5
1.6
1
157
172
27
53.5
0.68
210
178
25
3.5
2
2
164
194
76.8
128
3.16
230
188
30
4.5
3
2
173
211
100
156
5.3
160
160
220
188.6
25
3.5
2
2
173
204
81.7
135
3.14
170
170
220
191
20
3.5
1.6
2
184
198
29
62.1
2.21
180
180
240
210
25
3.5
2
2
195
225
84
143
3.44
190
190
240
211.9
25
3.5
1.6
1.5
202
222
41.7
82.9
2.99

shaft diameter
    Identification number
( Click on the following types and check  the details of products)
Main dimensions
  Shoulder height
Basic load rating(radial)
 weight

lnner
ring


outer
ring
D

 Roller pitch circle diameter dp
 width
B B1
 Greasing hole
r
ds
Dh
C
kN
Co
kN
Kg
a
b
200
200
260
230
25
3.5
2
2.5
215
245
84.2
157
4
280
240
30
4.5
3
2.5
221
258
114
200
6.7
295
247.7
35
5
3
2.5
225
270
151
252
9.6
220
220
280
250.1
25
3.5
2
2.5
235
265
92.3
171
4.1
240
240
300
269
25
3.5
2
3
256
281
68.3
145
4.5
250
250
310
277.5
25
3.5
2
3
265
290
69.3
150
5
330
287.5
30
4.5
3
3
269
306
126
224
8.1
355
300.7
40
6
3.5
3
275
326
195
348
14.8
300
300
360
328
25
3.5
2
3
315
340
76.3
178
5.9
395
345
35
5
3
3
322
368
183
367
13.4
405
351.6
40
6
3.5
3
326
377
212
409
17.2
350
350
400
373.4
20
3.5
1.6
3
363
383
54.1
143
3.9
400
400
480
440.3
35
5
3
3.5
422
459
156
370
14.5
510
453.4
40
6
3.5
3.5
428
479
241
531
23.5
450
450
500
474
25
3.5
1.6
1.5
464
484
61.7
182
6.6
500
500
550
524.2
25
3.5
1.6
1.5
514
534
65.5
201
7.3
600
548.8
40
6
3
3.5
526
572
239
607
26
625
561.6
50
6
3.5
3.5
536
587
267
653
41.7
600
600
700
650
40
6
3
4
627
673
264
721
29
700
700
815
753.5
45
6
3
4
731
777
281
836
46
800
800
950
868.1
70
6
4
5
836
900
468
1330
105
900
900
1050
969
70
6
4
5
937
1001
494
1490
120
1000
1000
1250
1114
110
6
6
6
1057
1171
1220
3220
360
1250
1250
1500
1365.8
110
6
4
6
1308
1423
1350
3970
440

 " remark   •Code of sealed type is RE•••UU.
                • Please use outer ring rotary when high precision is required."

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