Manufactured by PRS Bearings, the XRB 30040 is a precision XRB Crossed Roller Bearings. You may consider it as an interchangeable alternative and replacement for THK RB30040, IKO CRB30040, NSK NRXT30040. Key dimensional parameters include a 300 mm bore diameter, a 405 mm outer diameter, and a 40 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.
XRB 30040 - XRB Crossed Roller Bearings
Technical Specifications
| Direct Interchange | THK RB30040, IKO CRB30040, NSK NRXT30040 |
|---|---|
| Overview | |
| Basic Model | XRB 30040 |
| Weight | 17.2 kg |
| Dimensions | |
| Bore Dia (d, mm) | 300 mm |
| Outer Dia (D, mm) | 405 mm |
| Width (B, mm) | 40 mm |
| Roller Pitch Dia (Dpw) | 351.6 mm |
| Load Ratings | |
| Dynamic Load (Cr) | 212 kN |
| Static Load (Cor) | 409 kN |
| Performance | |
| Double Seal (ds) | 326 mm |
| Double High-Performance Seal (Dh) | 377 mm |
300 mm 40 mm 326 mm 377 mm XRB 30040 Frequently Asked Questions about XRB 30040 XRB Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
PRS Bearings provides the XRB 30040 with various cage options including high-strength pressed steel, machined brass for high-vibration tasks, or reinforced polymers for the quietest operation in precision machinery.
To maximize the performance of the XRB 30040, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 300 mm bore. For the 405 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.
Yes. As part of our B2B commitment, if a XRB 30040 experiences unexpected issues in the field, PRS Bearings engineers can perform detailed metallurgical and wear analysis to identify root causes and optimize your future setups.
Certainly. While the standard XRB 30040 is pre-filled with high-grade industrial lubricant, PRS Bearings can provide custom fills, including food-grade (NSF H1), high-temperature, or extreme-pressure greases tailored to your operational needs.