RA series thin-profile crossed roller bearings feature smaller outer diameter and width dimensions, making them suitable for space-constrained applications. This series is available in cage, separator, and full complement types to suit various needs.
Load Capacity:
Basic Dynamic Load Rating (Ca): 234,000 N
Basic Axial Static Load Rating (C0a): 690,000 N
Basic Axial Dynamic Load Rating (Cr): 166,000 N
Basic Radial Static Load Rating (C0r): 340,000 N
Bearing Features:
1. Excellent Rotational Accuracy: High speed capability, able to withstand large axial and radial loads.
2. Easy Installation: Saves installation space, reduces shaft length and machining costs.
3. Low Thermal Expansion: Minimal dimensional changes, suitable for high-precision applications.
4. Low Starting Torque: Nylon separators reduce rotational inertia and facilitate angular indexing control.
5. High rigidity and precision: Optimized preload enhances rigidity and roller running accuracy.
6. Wear and corrosion resistance: Constructed with high-carbon chromium steel (GCr15) and TN engineering plastics, providing excellent impact resistance and surface wear resistance.
Applications:
RA series crossed roller bearings are widely used in robot hand rotary joints, precision testing instruments, direct-drive torque motors, high-precision turntables, and other applications requiring high precision and rigidity.
| Bearing Type | Dimension | Shoulder Size | Basic Load rating(radial) | Weight | ||||||
| Inner Diameter | Outside Diameter | Roller Pitch Diameter | Height | Chamfer | Cr | Cor | ||||
| d | D | Dpw | B B1 | Rmin | ds | Dh | KN | KN | kg | |
| RA 5008 | 50 | 66 | 57 | 8 | 0.5 | 53.5 | 60.5 | 5.1 | 7.19 | 0.08 |
| RA6008 | 60 | 76 | 67 | 8 | 0.5 | 63.5 | 70.5 | 5.68 | 8.68 | 0.09 |
| RA7008 | 70 | 86 | 77 | 8 | 0.5 | 73.5 | 80.5 | 5.98 | 9.8 | 0.1 |
| RA 8008 | 80 | 96 | 87 | 8 | 0.5 | 83.5 | 90.5 | 6.37 | 11.3 | 0.11 |
| RA 9008 | 90 | 106 | 97 | 8 | 0.5 | 93.5 | 100.5 | 6.76 | 12.4 | 0.12 |
| RA10008 | 100 | 116 | 107 | 8 | 0.5 | 103.5 | 110.5 | 7.15 | 13.9 | 0.14 |
| RA11008 | 110 | 126 | 117 | 8 | 0.5 | 113.5 | 120.5 | 7.45 | 15 | 0.15 |
| RA 12008 | 120 | 136 | 127 | 8 | 0.5 | 123.5 | 130.5 | 7.84 | 16.5 | 0.17 |
| RA 13008 | 130 | 146 | 137 | 8 | 0.5 | 133.5 | 140.5 | 7.94 | 17.6 | 0.18 |
| RA 14008 | 140 | 156 | 147 | 8 | 0.5 | 143.5 | 150.5 | 8.33 | 19.1 | 0.19 |
| RA 15008 | 150 | 166 | 157 | 8 | 0.5 | 153.5 | 160.5 | 8.82 | 20.6 | 0.2 |
| RA 16013 | 160 | 186 | 172 | 13 | 0.8 | 165 | 179 | 23.3 | 44.9 | 0.59 |
| RA 17013 | 170 | 196 | 182 | 13 | 0.8 | 175 | 189 | 23.5 | 46.5 | 0.64 |
| RA 18013 | 180 | 206 | 192 | 13 | 0.8 | 185 | 199 | 24.5 | 49.8 | 0.68 |
| RA 19013 | 190 | 216 | 202 | 13 | 0.8 | 195 | 209 | 24.9 | 51.5 | 0.69 |
| RA 20013 | 200 | 226 | 212 | 13 | 0.8 | 205 | 219 | 25.8 | 54.7 | 0.71 |
0+
years
Industry Experience
0+
Model diversity
0+
Number of Employees
0
$
Annual export value
1. Primary Classifications and Mechanical Design Principles In the field of mechanical power transmission, the primary goal is to manage forces while facilitating movement. Ball bearings are the most...
1. Introduction: The Heart of the Machine In the world of mechanical engineering, bearings are often referred to as the “unseen heroes.” They are the critical interface between stationary and moving p...
I. Introduction 1.1 The Dawn of the Autonomous Era We are living in a transformative period where automation is no longer a futuristic concept but a global industrial reality. From “lights-out” smart ...
1. Introduction to the Precision Revolution in Modern Engineering The landscape of global industrial manufacturing is currently undergoing a profound transformation. As we move further into 2026, the ...
Product Categories
Contact Us
+86-510- 88763239
+86-13585028417
#198-601,Minfeng Road, Liangxi District, Wuxi, Jiangsu, China
Ready to Begin?
Get in Touch
Now!
UKL BEARING
English
Español
русский
