RU178G crossed roller bearing detail specifications:

RU178(G) crossed roller bearing 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, compact structure reduce the influence by installation
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 weight saving of devices.

Check more RU series crossed roller bearings.

FAQ

1. How to select crossed roller bearings?

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

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

RU178G crossed roller bearing installation instructions

RU178(G) Bearing Mounting Holes

Shoulder height

ds: 161mm

Dh: 195mm

PCD1 : 139mm

PCD2: 217mm

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

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

Suffix G :The counterbore holes of the inner and outer rings face opposite direction

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