RA7008 cross roller bearing specifications:

* RA7008UU is two sides sealed type.

More RA cross roller bearing models

RA7008|RA7008UU crossed roller bearing features:

1. Integrated inner ring with separable outer ring.

2. Sustain radial, axial and moment loads at the same time.

3. High rigidity & running accuracy.

4. Ultra-thin section, space saving and reduce the overall weight of the device.

FAQ

1. Which precision grade and clearance shall I select?
Below is the rotation accuracy and clearance standards, users can select based on their actual application and requirements. Your could also contact us for professional suggestions.

2. How to select crossed roller bearings?
Crossed roller bearings performance has an irreplaceable role in mechanical equipment, so selecting bearings require careful consideration. BRS suggest users choose cross roller ring following the procedures shown below.

RA7008 cross roller bearing installation instructions

Cautions: For crossed roller bearings with split outer ring, when the rigidity of the mounting parts is not sufficient, stress concentration will occur at the contact area between the rollers and raceways, and the bearing performance will be deteriorated significantly.

Therefore, it is necessary to carefully examine the rigidity of housing and the strength of fixing bolts when a large moment will be applied.

1. Before installation, please clean bearing bracket, shaft, or other components, make sure there is no burrs or rough edge.
2. Fix the inner and outer rings in the axial direction by using fixing plates, etc.
3. Slightly loosen the fixing bolts of bearings outer ring during mounting.