Manufactured by PRS Bearings, the XRA 9008 is a precision Ultra Thin XRA Crossed Roller Bearings. You may consider it as an interchangeable alternative and replacement for THK RA9008. Key dimensional parameters include a 90 mm bore diameter, a 106 mm outer diameter, and a 8 mm overall width. With matching boundary dimensions, this component is designed to meet standard load requirements and ensure consistent operational performance. For comprehensive technical evaluation, please explore the detailed specifications, dimensional data, product images, and CAD drawings provided below. A complete PDF data sheet is also readily available for direct download to support your engineering and procurement needs.
XRA 9008 - Ultra Thin XRA Crossed Roller Bearings
Technical Specifications
| Direct Interchange | THK RA9008 |
|---|---|
| Overview | |
| Basic Model | XRA 9008 |
| Weight | 0.12 kg |
| Dimensions | |
| Bore Dia (d, mm) | 90 mm |
| Outer Dia (D, mm) | 106 mm |
| Width (B, mm) | 8 mm |
| Roller Pitch Dia (Dpw) | 97 mm |
| Load Ratings | |
| Dynamic Load (Cr) | 6.67 kN |
| Static Load (Cor) | 12.4 kN |
| Performance | |
| Double Seal (ds) | 93.5 mm |
| Double High-Performance Seal (Dh) | 100.5 mm |
XRA 9008 90 mm 106 mm 8 mm 93.5 mm 100.5 mm Frequently Asked Questions about XRA 9008 Ultra Thin XRA Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
To maximize the performance of the XRA 9008, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 90 mm bore. For the 106 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.
As a dedicated bearing manufacturer, PRS Bearings maintains strategic inventory of the XRA 9008 for prompt dispatch. For large OEM forecast orders, our lean production lines guarantee highly competitive lead times.
Longevity of the PRS Bearings XRA 9008 is achieved through precise alignment and correct lubrication. The bearing's roller pitch diameter (Dpw: 97) plays a crucial role in load distribution and should be verified during maintenance. PRS Bearings also suggests regular monitoring of vibration levels to detect any signs of fatigue before they impact your production line.
The XRA 9008 utilizes high-purity bearing steel treated with PRS Bearings's advanced thermal processes. This creates a tough core that effectively absorbs shock loads while maintaining a highly wear-resistant surface on the raceways.