RAU integrated crossed roller bearings, especially the RAU models, enable lightweight and compact installations due to their extremely small cross-sectional area. Because of their integrated inner and outer ring construction, they can be used for both outer and inner ring rotation. A thinner version with a 5mm width and a compatible RA type are also available. The thinner series is available starting from ultra-small sizes with an inner diameter of 10mm.
Bearing Features
·Stiffness: The force capacity per unit deformation. RAU types can reach 300–800 N/μm, far exceeding ordinary angular contact ball bearings (approximately 50–150 N/μm), and are less prone to clearance misalignment even under heavy load startup.
·Precision Class: Mainstream is P4/P5 (ISO standard), equivalent to ±2μm rotational error, an order of magnitude higher than general mechanical bearings, making it standard for precision measuring instruments and five-axis machining centers.
·Limiting Speed: Depending on size and lubrication method, typically between 2000–6000 rpm, stable operation is possible with low-friction grease.
·Wear Resistance: Made of GCr15 bearing steel with surface nitriding treatment, hardness HRC 60 or higher, wear life can reach over 10,000 hours (subject to significant influence from operating conditions).
Applications
Robot joints, medical equipment, aerospace equipment, multi-station welding machines, communication radar, weather radar, precision rotary indexing tables, precision machine tools, precision testing instruments, precision rotary tables, large radio and optical telescopes, etc.
| Bearing Type | Dimension | Shoulder size | Basic Load rating(radial) | Weight | ||||||
| Inner Diameter | Outside Diameter | Roller Pitch Diameter | High | Chamfer | Cr | Cor | ||||
| d | D | Dpw | B B1 | rmin | ds | Dn | KN | KN | kg | |
| RAU5008 | 50 | 66 | 57 | 8 | 0.5 | 53.5 | 60.5 | 5.1 | 7.19 | 0.08 |
| RAU6008 | 60 | 76 | 67 | 8 | 0.5 | 63.5 | 70.5 | 5.68 | 8.68 | 0.09 |
| RAU7008 | 70 | 86 | 77 | 8 | 0.5 | 73.5 | 80.5 | 5.98 | 9.8 | 0.1 |
| RAU8008 | 80 | 96 | 87 | 8 | 0.5 | 83.5 | 90.5 | 6.37 | 11.3 | 0.11 |
| RAU9008 | 90 | 106 | 97 | 8 | 0.5 | 93.5 | 100.5 | 6.76 | 12.4 | 0.12 |
| RAU10008 | 100 | 116 | 107 | 8 | 0.5 | 103.5 | 110.5 | 7.15 | 13.9 | 0.14 |
| RAU11008 | 110 | 126 | 117 | 8 | 0.5 | 113.5 | 120.5 | 7.45 | 15 | 0.15 |
| RAU12008 | 120 | 136 | 127 | 8 | 0.5 | 123.5 | 130.5 | 7.84 | 16.5 | 0.17 |
| RAU13008 | 130 | 146 | 137 | 8 | 0.5 | 133.5 | 140.5 | 7.94 | 17.6 | 0.18 |
| RAU14008 | 140 | 156 | 147 | 8 | 0.5 | 143.5 | 150.5 | 8.33 | 19.1 | 0.19 |
| RAU15008 | 150 | 166 | 157 | 8 | 0.5 | 153.5 | 160.5 | 8.82 | 20.6 | 0.2 |
| RAU16013 | 160 | 186 | 172 | 13 | 0.8 | 165 | 179 | 23.3 | 44.9 | 0.59 |
| RAU17013 | 170 | 196 | 182 | 13 | 0.8 | 175 | 189 | 23.5 | 46.5 | 0.64 |
| RAU18013 | 180 | 206 | 192 | 13 | 0.8 | 185 | 199 | 24.5 | 49.8 | 0.68 |
| RAU19013 | 190 | 216 | 202 | 13 | 0.8 | 195 | 209 | 24.9 | 51.5 | 0.69 |
| RAU20013 | 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
As quadruped robots, especially those designed to mimic wolves, continue to gain traction in robotics and artificial intelligence, the importance of choosing the right bearings cannot be overstated. B...
Introduction In the ever-evolving field of healthcare, the role of medical equipment bearings is crucial. These small yet essential components ensure that complex medical devices function smoothly, of...
Introduction When selecting bearings for rotating machinery, the performance of the bearing plays a crucial role in the overall efficiency and reliability of the system. Among various bearing types, Y...
Introduction In the world of manufacturing, precision is key. Every step of the production process must be executed with utmost accuracy to ensure high-quality end products. One essential component th...
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
