THK Replacement Cross Roller Bearings · RU Series
RU178X Cross Roller Bearing
RU178X cross roller bearing with bore, outer diameter, width, series and quote information.
Ask for price, lead time and equivalent bearing options.
RU178X Thin Section Bearing Photo
Real photo of a THK replacement thin section bearing for quick visual confirmation.
Product Introduction
RU178X is a RU series cross roller bearing for compact rotary structures that need combined radial, axial and moment load capacity.
Key size: bore 115 mm, outer diameter 240 mm, width 28 mm.
Suitable for robot joints, rotary tables, indexing mechanisms, inspection equipment and precision reducers.
Before ordering, confirm installation space, accuracy grade, clearance, preload and working load direction.
Dimension Drawing
Key dimensions are marked on the drawing for quick model checking.
d=115 mmD=240 mmB=28 mmdp=178 mmds=161 mmDh=195 mm
d=115 mmD=240 mmB=28 mmdp=178 mmds=161 mmDh=195 mm
Specifications
| Brand | THK Replacement Cross Roller Bearings |
|---|---|
| Series | RU |
| Model | RU178X |
| Bore diameter | 115 mm |
| Outer diameter | 240 mm |
| Pitch circle diameter | 178 mm |
| Width | 28 mm |
| Dynamic load rating C | 80.3 kN |
| Static load rating C0 | 135 kN |
| Mass | 6.8 kg |
| Feature | Integrated inner and outer ring with mounting holes |
Application and Selection Notes
RU178X is a RU series cross roller bearing. It is typically reviewed when compact structure, high rigidity and stable rotational accuracy are required.
Check the mounting space against bore 115 mm, outer diameter 240 mm and width 28 mm. Confirm shoulder dimensions before final housing design.
For load review, compare dynamic load rating 80.3 kN and static load rating 135 kN with the actual radial, axial and moment load conditions.
Series type：Integrated inner and outer ring type
Before Requesting a Quote
Target model or equivalent model
Quantity and expected delivery time
Accuracy, clearance and sealing requirements
Drawing, application or working load if available
Common Questions
What type of bearing is RU178X?
RU178X is a RU series cross roller bearing for combined radial, axial and moment loads.
Can RU178X be replaced with another brand?
Yes. Provide the original part number, drawing or key dimensions so fit, bearing type and accuracy can be checked.
What are the load ratings of RU178X?
The dynamic load rating is 80.3 kN and the static load rating is 135 kN. Final selection must consider the actual load direction and duty cycle.
What should be checked before ordering RU178X?
Confirm bore, outer diameter, width, bearing type, accuracy, clearance, preload and installation method before ordering this Cross Roller Bearing.
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Technical Guides
Cross Roller Bearing Installation GuideInstallation checks for shaft and housing shoulders, tightening sequence, fit and rotational accuracy.
Cross Roller Bearing Clearance and PreloadHow clearance and preload affect rigidity, torque, heat and service life.
Cross Roller Bearing Accuracy SelectionSelection notes for running accuracy, mounting accuracy, rigidity and application requirements.
Model Search
Enter a bearing model number to open its product page directly.
Applications
Industrial robotsCNC rotary tablesMedical imaging systemsOptical inspection equipmentPrecision reducers
Request a Quote: RU178X
Send the bearing model, quantity, accuracy class and drawing if available. We will match RU, RB, RA, RE, CRBH, CRBF and equivalent crossed roller bearing models.
