THK Replacement Cross Roller Bearings · RA Series
RA12008 Cross Roller Bearing
RA12008 cross roller bearing with bore, outer diameter, width, series and quote information.
Ask for price, lead time and equivalent bearing options.
RA12008 Thin Section Bearing Photo
Real photo of a THK replacement thin section bearing for quick visual confirmation.
Product Introduction
RA12008 is a RA series cross roller bearing for compact rotary structures that need combined radial, axial and moment load capacity.
Key size: bore 120 mm, outer diameter 136 mm, width 8 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=120 mmD=136 mmB=8 mmdp=127 mmds=123.5 mmDh=130.5 mm
d=120 mmD=136 mmB=8 mmdp=127 mmds=123.5 mmDh=130.5 mm
Specifications
| Brand | THK Replacement Cross Roller Bearings |
|---|---|
| Series | RA |
| Model | RA12008 |
| Bore diameter | 120 mm |
| Outer diameter | 136 mm |
| Pitch circle diameter | 127 mm |
| Width | 8 mm |
| Dynamic load rating C | 7.84 kN |
| Static load rating C0 | 16.5 kN |
| Mass | 0.17 kg |
| Feature | Thin compact outer ring split type |
Application and Selection Notes
RA12008 is a RA 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 120 mm, outer diameter 136 mm and width 8 mm. Confirm shoulder dimensions before final housing design.
For load review, compare dynamic load rating 7.84 kN and static load rating 16.5 kN with the actual radial, axial and moment load conditions.
Series type：Ultra-thin compact crossed roller bearing
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 RA12008?
RA12008 is a RA series cross roller bearing for combined radial, axial and moment loads.
Can RA12008 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 RA12008?
The dynamic load rating is 7.84 kN and the static load rating is 16.5 kN. Final selection must consider the actual load direction and duty cycle.
What should be checked before ordering RA12008?
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: RA12008
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.
