Crossed Roller Bearing RB Series

1. RB cross roller bearing is Inner and Outer Ring Integrity, outer ring with plug.
2. Sizes:Inner Diameter: 20-1100mm Outer Diameter: 70-1500mm Width: 12-110mm
3.Performance Advantages:High radial, axial and moment load capacity in a single bearing; low friction coefficient for smooth rotation; excellent runout accuracy.
4.Material: Gcr15, Gcr15SiMn.
5. Application: Joints or rotating parts of industrial robots, rotary tables of machining centers, rotating parts of manipulators, precision rotary tables, medical machines, measuring instruments, IC manufacturing devices, etc.
6. Accurcy: P6, P0, P5, P4, P6.
Product Description

Crossed Roller Bearing RB Series: Precision Engineered for Industrial Excellence

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.

RB Crossed Roller Bearings
 
RB Crossed Roller Bearings
 

What Makes the RB Series Different?

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.

Technical Specifications

Bearing Designations
Boundary Dimensions(mm)
Basic Load Rating
Shoulder Height
Weight(kg)
 
d
D
B
r min
C
(KN)
Co
(KN)
ds
(mm)
Dh
(mm)
 
RB2008
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
40
65
10
0.6
8.33
10.6
47.5
57.5
0.16
RB4510
45
70
10
0.6
8.62
11.3
51
61.5
0.17
RB5013
50
80
13
0.6
16.7
20.9
57.4
72
0.27
RB6013
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
0.7
RB9016
90
130
16
1.5
31.4
45.3
98
118
0.75
RB10016
100
140
16
1.5
31.7
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

Performance Advantages

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.

Working Principle

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.

 
Our Factory
 

 

RB Crossed Roller Bearings
 
RB Crossed Roller Bearings
 
RB Crossed Roller Bearings
 

Industrial Applications

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.

RB Crossed Roller Bearings​​​​​​​

Quality Assurance

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.

Why Choose Our RB Series?

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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