RAU2005 20*31*5mm Crossed Roller Bearing For Hollow Shaft Gearbox Reducer For Servo Drives
The RAU2005 bearing is a Crossed roller bearing with an inner diameter of 20 mm , an outer diameter of 31 mm, a width of 5 mm. It typically uses P4 grade precision tolerances and It primarily bears radial/Axial, Its dynamic radial rated load is approximately 1.49, its static radial rated load is approximately 1.4. It uses C0 standard radial clearance, no seals type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.
Feature: Crossed roller
Application: Astronomical telescope harmonic drive
| ModelNo. | 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 | |
| RAU2005 | 20 | 31 | 24.7 | 5 | 1 | 0.15 | 22.5 | 27 | 1.49 | 1.4 | 15 |
Micro Cross-Roller Ring RAU
For a compact and lightweight system
・Micro Cross-Roller Ring with inner diameter of 10 mm and outer diameter of 21 mm
・More compact than a conventional angular contact ball bearing
・Spacer retainer enables smooth movement and high rotation accuracy.
Structure
In the RAU, the rollers travel on the V-shaped raceways ground into the inner and outer rings.
Alternating rollers are arrayed orthogonally so that one bearing can support loads and moments in any direction.
Also, because of the integrated structure, the RAU can be used for either inner ring or outer ring rotation.
Fig. 1 Structure of Cross Roller-Ring Model RAU
1. Compact and Rigid
The RAU is more compact and lighter weight than a double row angular contact ball bearing. It is also more rigid, even though it is made as compact as possible.
2. Light Weight
The cross-sectional area of the model RAU is 57% smaller than theCross-Roller Ring model RA, which was previously the thinnest ever. This enables further weight reduction. The line-up also includes other models
whose inner diameters are the smallest to date: 10, 15, 20, 30, and 40mm.
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