RU Series Cross Roller Bearing
RU Series Cross Roller Bearings Are Designed As An Integral Structure For Inner And Outer Rings. Because The Inner And Outer Rings Have Machined Installation Holes, There Is No Need To Fix Flanges And Support Supports, Which Shortens The Axial Space Distance And Optimizes The Use Mechanism. In Addition, Because Of The Integrated Inner And Outer Rings Structure With Seat, Installation Has Little Effect On Performance, So Stable Rotation Accuracy And Torque Can Be Obtained, And The Outer Rings Can Be Used. It Is Suitable For Both Inner Ring Rotating Mechanism And Is Widely Used In Robot Waist Joints, Welding Multi-Station Rotary Table, Communication Radar, Precision Measuring Instruments And So On.
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Designation
Dimensions（Mm）
Basic Load Ratings（KN）
Weight
D
D
B
D2
D1
N1
N2
D1
D11
T1
D2
D21
T2
Rsmin
Cr
Cor
Kg
RU42
20
70
12
57
28
6
6
3.4
6.5
3.3
M3
——
——
0.6
7.35
8.35
0.29
RU66
35
95
15
83
45
8
8
4.5
8
4.4
M4
——
——
0.6
17.5
22.3
0.62
RU85
55
120
15
105
65
8
8
5.5
9.5
5.4
M5
——
——
0.6
20.3
29.5
1
RU124(G)
80
165
22
148
97
10
10
5.5
9.5
5.4
5.5
9.5
5.4
1
33.1
50.9
2.6
RU124X
80
165
22
148
97
10
10
5.5
9.5
5.4
M5
——
——
1
33.1
50.9
2.6
RU148(G)
90
210
25
187
112
12
12
9
14
8.6
9
14
8.6
1.5
49.1
76.8
4.9
RU148X
90
210
25
187
112
12
12
9
14
8.6
M8
——
——
1.5
49.1
76.8
4.9
RU178(G)
115
240
28
217
139
12
12
9
14
8.6
9
14
8.6
1.5
80.3
135
6.8
RUI78X
115
240
28
217
139
12
12
9
18
8.6
M8
——
——
1.5
80.3
135
6.8
RU228(G)
160
295
35
270
184
12
12
11
18
11
11
18
11
2
104
173
11.4
RU228X
160
295
35
270
184
12
12
11
18
11
M10
——
——
2
10.1
173
11 4
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