Manufactured by PRS Bearings, the XRB 12020 is a precision XRB Crossed Roller Bearings. You may consider it as an interchangeable alternative and replacement for NSK NRXT12020. Key dimensional parameters include a 120 mm bore diameter, a 170 mm outer diameter, and a 20 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 12020 - XRB Crossed Roller Bearings
Technical Specifications
| Direct Interchange | NSK NRXT12020 |
|---|---|
| Overview | |
| Basic Model | XRB 12020 |
| Weight | 1.6 kg |
| Dimensions | |
| Bore Dia (d, mm) | 120 mm |
| Outer Dia (D, mm) | 170 mm |
| Width (B, mm) | 20 mm |
| Roller Pitch Dia (Dpw) | 145 mm |
| Load Ratings | |
| Dynamic Load (Cr) | 36 kN |
| Static Load (Cor) | 62 kN |
| Performance | |
| Double Seal (ds) | 137 mm |
| Double High-Performance Seal (Dh) | 153 mm |
120 mm 20 mm 137 mm 153 mm XRB 12020 Frequently Asked Questions about XRB 12020 XRB Crossed Roller Bearings
Find key technical answers regarding dimensions, specifications, and replacement options for this model.
PRS Bearings provides a comprehensive B2B warranty for the XRB 12020 against manufacturing defects. Furthermore, our engineering team offers ongoing technical support to ensure the XRB Crossed Roller Bearings operates optimally within your specific machinery.
The XRB 12020 produced by PRS Bearings adheres to strict ISO standards with a bore diameter of 120 mm, an outer diameter of 170 mm, and a width of 20 mm. PRS Bearings utilizes advanced grinding technology to ensure a radial section wall thickness of 25.0 mm and a balanced D/d ratio of 1.42 for high-precision housing fits.
The standard PRS Bearings XRB 12020 is designed for rigid configurations. For optimal performance, strict alignment of the 120 mm bore is critical, though PRS Bearings engineers can provide self-aligning bearing alternatives if your equipment is prone to deflection.
To maximize the performance of the XRB 12020, PRS Bearings technical engineers suggest a shaft fit of k5/m5 for its 120 mm bore. For the 170 mm outer diameter, an H7 or J7 housing tolerance is ideal to accommodate thermal expansion while maintaining PRS Bearings's signature operational stability.