When you need high-precision rotary motion in compact spaces, the Crossed Roller Bearing RB Series delivers unmatched performance. This advanced bearing solution features cylindrical rollers arranged at 90° angles within V-groove raceways, enabling a single unit to handle radial, axial, and moment loads simultaneously. With an integrated inner ring and separable outer ring design, these bearings eliminate the need for paired configurations while maximizing rigidity and accuracy. Whether you're designing robotic joints or precision machining centers, this bearing series provides the reliability and space efficiency your applications demand.


The RB series features a unique structural design that sets it apart from conventional bearings. The integrated inner ring construction provides exceptional stability, while the separable outer ring with plug allows for simplified installation and maintenance. This configuration makes it ideal for applications where inner ring rotation is required.
The orthogonal roller arrangement creates optimal load distribution across all contact surfaces. Each roller is precisely positioned using spacing retainers that prevent friction and skewing during operation. This design principle ensures consistent performance under varying load conditions.
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Bearing Designations
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Boundary Dimensions(mm)
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Basic Load Rating
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Shoulder Height
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Weight(kg)
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|||||
|
|
d
|
D
|
B
|
r min
|
C
(KN)
|
Co
(KN)
|
ds
(mm)
|
Dh
(mm)
|
|
|
RB2008
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20
|
36
|
8
|
0.5
|
3.23
|
3.1
|
23.5
|
30.5
|
0.04
|
|
RB2508
|
25
|
41
|
8
|
0.5
|
3.63
|
3.83
|
28.5
|
35.5
|
0.05
|
|
RB3010
|
30
|
55
|
10
|
0.6
|
7.35
|
8.36
|
37
|
47
|
0.12
|
|
RB3510
|
35
|
60
|
10
|
0.6
|
7.64
|
9.12
|
41
|
51.5
|
0.13
|
|
RB4010
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40
|
65
|
10
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0.6
|
8.33
|
10.6
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47.5
|
57.5
|
0.16
|
|
RB4510
|
45
|
70
|
10
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0.6
|
8.62
|
11.3
|
51
|
61.5
|
0.17
|
|
RB5013
|
50
|
80
|
13
|
0.6
|
16.7
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20.9
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57.4
|
72
|
0.27
|
|
RB6013
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60
|
90
|
13
|
0.6
|
18
|
24.3
|
68
|
82
|
0.3
|
|
RB7013
|
70
|
100
|
13
|
1
|
19.4
|
27.7
|
78
|
92
|
0.35
|
|
RB8016
|
80
|
120
|
16
|
1
|
30.1
|
42.1
|
91
|
111
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0.7
|
|
RB9016
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90
|
130
|
16
|
1.5
|
31.4
|
45.3
|
98
|
118
|
0.75
|
|
RB10016
|
100
|
140
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16
|
1.5
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31.7
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48.6
|
109
|
129
|
0.83
|
|
RB10020
|
100
|
150
|
20
|
1.5
|
33.1
|
50.9
|
113
|
133
|
1.45
|
|
RB11012
|
110
|
135
|
12
|
1
|
12.5
|
24.1
|
117
|
127
|
0.4
|
|
RB11015
|
110
|
145
|
15
|
1
|
23.7
|
41.5
|
122
|
136
|
0.75
|
|
RB11020
|
160
|
133
|
20
|
1.5
|
34
|
54
|
120
|
143
|
1.56
|
|
RB12016
|
120
|
150
|
16
|
1.5
|
24.2
|
43.2
|
127
|
141
|
0.72
|
|
RB12025
|
120
|
180
|
25
|
1
|
66.9
|
100
|
133
|
164
|
2.62
|
Multi-Directional Load Capacity
Your equipment benefits from the ability to handle radial, axial, and moment loads in a single bearing unit. This eliminates the complexity and space requirements of multiple bearing arrangements.
High Rigidity and Accuracy
The crossed roller configuration provides superior rigidity compared to ball bearings. This translates to better positioning accuracy and reduced elastic deformation under load.
Low Friction Operation
The cylindrical roller design minimizes friction coefficient, resulting in smoother rotation and reduced power consumption. This characteristic extends bearing life and improves system efficiency.
Compact Design
You can achieve significant space savings with this bearing design. The ability to handle multiple load types in a single unit reduces overall assembly size and weight.
The Crossed Roller Bearing RB Series operates on the principle of orthogonal load distribution. Cylindrical rollers are positioned alternately at 90° angles between the inner and outer ring raceways. This arrangement allows some rollers to handle radial loads while others manage axial forces.
The V-groove raceway plan guarantees appropriate roller situating and stack exchange. As the bearing pivots, loads are dispersed equally over all contact focuses, anticipating push concentrations that may lead to untimely wear.



Robotics and Automation
Industrial robot joints require heading that can handle complex stacking whereas keeping up exact situating. The RB arrangement gives the vital inflexibility and precision for multi-axis automated systems.
Machine Device Technology
Rotary tables and accuracy ordering gear advantage from the tall minute stack capacity and great runout exactness. These heading empower exact precise situating in CNC machining centers.
Medical Equipment
Medical imaging hardware and surgical mechanical autonomy request ultra-smooth operation with negligible vibration. The moo grinding characteristics make this bearing arrangement reasonable for these basic applications.
Semiconductor Manufacturing
IC fabricating gadgets require contamination-free operation and exact movement control. The fixed development and tall exactness grades meet these rigid requirements.
Material Excellence
We fabricate these orientation utilizing high-grade GCr15 and GCr15SiMn bearing steel. These materials experience specialized warm treatment forms to accomplish ideal hardness and dimensional solidness. The steel composition gives amazing wear resistance and weakness life.
Our exactness pounding innovation guarantees steady surface wrap up over all contact surfaces. This consideration to fabric quality straightforwardly impacts bearing execution and benefit life.
Every bearing experiences comprehensive testing some time recently shipment. Our three-level quality control framework incorporates crude fabric assessment, in-process observing, and last item confirmation. We test 12 center execution markers counting vibration levels and stack capacity.
The result is a capability rate surpassing 99.9%. This level of quality control guarantees your hardware works dependably in requesting mechanical environments.
With 30 a long time of bearing fabricating encounter, we get it the basic part accuracy orientation play in your gear execution. Our coordinates R&D and fabricating capabilities guarantee steady quality and solid supply.
We maintain stock of over 1,000 bearing types for rapid delivery of standard sizes. For custom requirements, our modular production approach reduces lead times to 70% of industry averages. This means you get the Crossed Roller Bearing RB Series you need when you need it.
Our technical support team provides worldwide installation guidance and maintenance support. From initial selection through end-of-life replacement, we're here to ensure optimal bearing performance in your applications.
Contact us at auto@lyautobearing.com to discuss your specific requirements and discover how our bearing solutions can enhance your equipment performance.
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