RU148 crossed roller bearing detail specifications:

RU148 cross roller ring features:

1. Integrated inner ring and outer ring, provide high stiffness.
2. Sustain radial, axial, and moment loads at the same time.
3. High rigidity & rotation accuracy. The compact structure of the bearing can minimize mounting errors.
4. Miniaturization. Inner ring and outer ring with mounting holes, so it can be easily mounted to a device with bolts without need for housing and fixing plate, so surrounding parts of the bearing can be made compact, which contributes to miniaturization and a weight saving of devices.
5. BRS can produce custom designs according to drawings or samples, design service is also available.
Check more RU series crossed roller bearings.

FAQ

1. Which precision grade shall I select?
There are mainly three precision grades for RU148 crossed roller bearings, P5, P4, and P2. The table below shows RU148 bearing runout tolerance of each grade, which users can select based on their actual application and requirements. If you are not sure how to choose, don’t hesitate to contact us, our engineers will offer you suggestions.

2. Can I get a drawing of this model?
Yes, we provide drawing for standard bearing models, and can also produce custom designs according to your drawing.

3. I’m designing a prototype, can you produce according to my design?
Yes, BRS can produce custom designs based on users’ requirements, but there will be a MOQ. Please contact us for details.

RU148 cross roller bearing installation instructions

RU148 Bearing Mounting Holes

Shoulder height

ds: 133mm

Dh: 162mm

PCD1 : 112mm

PCD2: 187mm

Inner ring mounting hole 12-φ9 drilled through, φ14 counterbore depth 8.6

Outer ring mounting hole 12-φ9 drilled through, φ14 counterbore depth 8.6

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 deteriorate 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 directly to the mounting surface by fixing bolts
3. If a large number of radial load and/or moment is applied, it is recommended to prepare the flange part as Fig.4.