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RAU Series Crossed Roller Bearings - High Rigidity and Precision

RAU Series Cross Roller Bearings

The RAU series cross roller bearings are precision bearings designed to handle high radial and axial loads. They feature cylindrical rollers arranged at right angles to one another, allowing for smooth rotation and high rigidity. These bearings are commonly used in applications such as robotics, machine tools, and medical equipment, where accuracy and stability are crucial. Their design minimizes friction and wear, ultimately enhancing performance and longevity.

Product Details

RAU series cross roller bearings are a kind of bearings with special design and high performance characteristics, which are widely used in industrial robots, direct drive motors, medical equipment, measuring instruments and other fields. The following is a detailed introduction to RAU series cross roller bearings:

1. Design features

Unique structure: The cylindrical rollers of RAU series cross roller bearings are arranged crosswise on the V-shaped raceway, and the rollers are separated by isolation blocks. This structure enables the bearing to bear multi-directional loads alone, including axial, radial and overturning moments.

Integral structure: Its inner and outer rings are both integral structures, which can be used for both inner ring rotation and outer ring rotation, providing higher flexibility and stability.

Miniaturized design: RAU series bearings have miniaturized dimensions while maintaining high rigidity, high precision and excellent composite load-bearing capacity.

2. Performance advantages

High load-bearing capacity: Due to the cross arrangement between rollers and the design of isolation blocks, RAU series bearings can withstand large loads and meet the needs of various complex working conditions.

High precision: The inner and outer rings of the bearings are both integral structures and are precision machined to ensure the high rotation accuracy and stability of the bearings.

Multi-directional load bearing: The unique roller arrangement enables the bearing to independently bear multi-directional loads such as axial, radial and overturning moments.

3. Application fields

Industrial robots: RAU series bearings are widely used in the joints or rotating parts of industrial robots, providing stable and high-precision motion support for robots.

Direct drive motors: Due to their high rigidity and high precision, RAU series bearings are also often used as support components for direct drive motors.

Medical equipment: In the field of medical equipment, the high precision and stability of RAU series bearings provide guarantees for the precise operation of medical equipment.

Measuring instruments: Measuring instruments have extremely high requirements for accuracy and stability, and RAU series bearings can meet these requirements to ensure the accuracy of measurement results.

4. Models and sizes

RAU series cross roller bearings are available in a variety of models and sizes to meet the needs of different applications. For example, models such as RAU5008, RAU6008, and RAU7008 correspond to different inner and outer diameters. For specific models and size parameters, please refer to the product manuals or technical information provided by relevant manufacturers.

5. Parameter

Shaft Diameter Model No. Main  Dimensions Shoulder Height Basic Load Rating (Radial) Mass
Inner Diameter
d
Outer Diameter
D
Roller Pitch Circle Diameter
dp
Width
B B1
Greasing Hole
d0
r min
ds
 (max)
Dh
(min)
C
kN
Co
kN
g
10 RAU1005 10 21 14.7 5 1 0.15 12.5 17 1.12 0.809 9
15 RAU1505 15 26 19.7 5 1 0.15 17.5 22 1.32 1.1 12
20 RAU2005 20 31 24.7 5 1 0.15 22.5 27 1.49 1.4 15
30 RAU3005 30 41 34.7 5 1 0.15 32.5 37 1.89 2.14 21
40 RAU4005 40 51 44.7 5 1 0.15 42.5 47 2.14 2.74 27
50 RAU5005 50 61 54.7 5 1 0.15 52.5 57 2.43 3.49 32
60 RAU6005 60 71 64.7 5 1 0.15 62.5 67 2.63 4.09 38
70 RAU7005 70 81 74.7 5 1 0.15 72.5 77 2.81 4.68 44
80 RAU8005 80 91 84.7 5 1 0.15 82.5 87 3.05 5.43 50
90 RAU9005 90 101 94.7 5 1 0.15 92.5 97 3.19 6.03 56
100 RAU10005 100 111 104.7 5 1 0.15 102.5 107 3.37 6.63 61
50 RAU5008 50 66 57 8 1.5 0.5 53.5 60.5 5.1 7.19 8
60 RAU6008 60 76 67 8 1.5 0.5 63.5 70.5 5.68 8.68 9
70 RAU7008 70 86 77 8 1.5 0.5 73.5 80.5 5.98 9.8 10
80 RAU8008 80 96 87 8 1.5 0.5 83.5 90.5 6.37 11.3 11
90 RAU9008 90 106 97 8 1.5 0.5 93.5 100.5 6.76 12.4 12
100 RAU10008 100 116 107 8 1.5 0.5 103.5 110.5 7.15 13.9 14
110 RAU11008 110 126 117 8 1.5 0.5 113.5 120.5 7.45 15 15
120 RAU12008 120 136 127 8 1.5 0.5 123.5 130.5 7.84 16.5 17
130 RAU13008 130 146 137 8 1.5 0.5 133.5 140.5 7.94 17.6 18
140 RAU14008 140 156 147 8 1.5 0.5 143.5 150.5 8.33 19.1 19
150 RAU15008 150 166 157 8 1.5 0.5 153.5 160.5 8.82 20.6 20
160 RAU16013 160 186 172 13 2 0.8 165 179 23.3 44.9 59
170 RAU17013 170 196 182 13 2 0.8 175 189 23.5 46.5 64
180 RAU18013 180 206 192 13 2 0.8 185 199 24.5 49.8 68
190 RAU19013 190 216 202 13 2 0.8 195 209 24.9 51.5 69
200 RAU20013 200 226 212 13 2 0.8 205 219 25.9 54.7 71

When selecting RAU series cross roller bearings, comprehensive consideration should be given to factors such as specific application scenarios, load requirements, and speed requirements.

During installation and use, the installation guide and instructions provided by the manufacturer should be strictly followed to ensure the normal operation of the bearings and extend their service life.

Inspect and maintain the bearings regularly to detect and deal with potential problems in a timely manner to avoid failures.