cross roller bearing Mounting
Jul 21, 2020
Crossed Roller Bearing Mounting
Introduction to Crossed Cylindrical Roller Bearing:
The cylindrical rollers are perpendicular to each other, arranged in the V-shape raceway. The rollers are separated by spacer. The structure enables the single bearing to carry axial, radial and moment loads. At the same time, due to the dimensional miniaturization, this type of bearing has higher rigidity, higher rotational accuracy and larger loading capacity, which is applicable to the joints or rotating parts of industrial robots and manipulators, the rotary table of machining center, precision rotary table, medical equipment, measuring instrument, etc.
Structure
1. Split outer ring with integrated inner ring rotating
2. Split inner ring with integrated outer ring rotating
3. Integrated inner ring rotating and Integrated outer ring rotating
Series
|
HRB |
- Split Outer Ring - Integrated Inner Ring |
Applicable to the occasion requiring Inner Ring Rotating |
|
HRE |
- Integrated Outer Ring - Split Inner Ring |
Applicable to the occasion requiring Outer Ring Rotating |
|
HRU |
- Integrated Outer Ring with Mounting Holes - Integrated Inner Ring with Mounting Holes |
- No Need of Flange and Bearing Support; - Stable Rotating Accuracy and Torque; Applicable to the occasion requiring Outer Ring and Inner Ring Rotating |
|
HRA |
- Split Outer Ring - Integrated Inner Ring - Ultra-Thin |
- Compact Design of HRB; Applicable to rotating parts of robots and manipulators |
|
HRA-C |
- Integrated Outer Ring with a small Gap - Integrated Inner Ring - Ultra-Thin |
Applicable to the occasion requiring Outer Ring Rotating |
|
HSX |
- Split Outer Ring - Integrated Inner Ring - Ultra-Thin |
- Smaller cross section than HRB with the same shaft neck - Need of Flange and Bearing Support; Applicable to the occasion requiring Inner Ring Rotating |
|
HCRBH |
- Integrated Outer Ring - Integrated Inner Ring - Ultra-Thin |
- Need of Flange and Bearing Support; - Need of Flange and Bearing Support; Applicable to the occasion requiring Outer Ring and Inner Ring Rotating and compact size |
Selection based on Working Conditions
|
Working Conditions |
|
Bearing Selections |
|
Rotating parts and assembly methods |
à |
HRB, HRE, HRU, HRA, HRA-C, HCRBH, HSX |
|
Service life, axial and radial dynamic loading capacity |
à |
Dimensions: ID, OD, Width |
|
Working environment and torque |
à |
Seals: double seals, single seals, no seals |
|
Precision grade |
à |
P5, P4, P2 |
|
Rigidity and radial clearance |
à |
Negative clearance (preload), positive clearance and larger positive clearance |
Installations
1. Inspection of Parts before the Installation
Clean the spindle, housing or other installing parts to remove oil stain and other impurities; check to deburr the parts.
2. Installation of Bearing
In order to prevent the bearing from tilting to one side, please keep the bearing horizontal while using the plastic hammer to evenly tap the bearing. Gradually load the bearings onto the spindle or housing until it is fully contacted with the reference surface, which can be confirmed by the sound.
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