THK Replacement Cross Roller Bearings · RB Series
RB25040 Cross Roller Bearing
RB25040 cross roller bearing with bore, outer diameter, width, series and quote information.
Ask for price, lead time and equivalent bearing options.
RB25040 Thin Section Bearing Photo
Real photo of a THK replacement thin section bearing for quick visual confirmation.
Product Introduction
RB25040 is a RB series cross roller bearing for compact rotary structures that need combined radial, axial and moment load capacity.
Key size: bore 250 mm, outer diameter 355 mm, width 40 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=250 mmD=355 mmB=40 mmdp=300.7 mmds=275 mmDh=326 mm
d=250 mmD=355 mmB=40 mmdp=300.7 mmds=275 mmDh=326 mm
Specifications
| Brand | THK Replacement Cross Roller Bearings |
|---|---|
| Series | RB |
| Model | RB25040 |
| Bore diameter | 250 mm |
| Outer diameter | 355 mm |
| Pitch circle diameter | 300.7 mm |
| Width | 40 mm |
| Dynamic load rating C | 195 kN |
| Static load rating C0 | 348 kN |
| Mass | 14.8 kg |
| Feature | Outer ring split type for inner ring rotation |
Application and Selection Notes
RB25040 is a RB 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 250 mm, outer diameter 355 mm and width 40 mm. Confirm shoulder dimensions before final housing design.
For load review, compare dynamic load rating 195 kN and static load rating 348 kN with the actual radial, axial and moment load conditions.
Series type：Outer ring split 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 RB25040?
RB25040 is a RB series cross roller bearing for combined radial, axial and moment loads.
Can RB25040 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 RB25040?
The dynamic load rating is 195 kN and the static load rating is 348 kN. Final selection must consider the actual load direction and duty cycle.
What should be checked before ordering RB25040?
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: RB25040
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.
