The Needle Roller Inner Ring LR40X45X20,5 by MTB is an essential component in the category of bearing accessories. Designed with precision, this component measures 40 mm in bore diameter, 45 mm in outer diameter, and 20.5 mm in width. These dimensions make it ideal for applications requiring compactness and efficiency. Commonly utilized in industrial machinery, this needle roller inner ring provides superior support and reduces friction between moving parts, ensuring efficient performance.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 40 mm |
| Outer diameter (D) | 45 mm |
| Width (B) | 20.5 mm |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
Technical advantages
The Needle Roller Inner Ring LR40X45X20,5 is engineered to deliver concrete technical benefits:
- Constructed from 100Cr6 chrome steel, offering high rolling-contact fatigue life beyond 107 cycles.
- Compact dimensions allow easy integration into various mechanical assemblies where space is limited.
- Precision class P0 ensures compatibility with standard bearing applications requiring basic precision.
- Efficient load distribution thanks to uniform surface hardness and material integrity.
- Designed for seamless use with needle roller bearings, enhancing the overall system’s load capacity.
Typical applications
This needle roller inner ring is commonly used in several specific industrial sectors and machinery:
- Automotive industry (gearboxes, camshaft assemblies)
- Textile machinery (spinning and weaving machines)
- Construction equipment (hydraulic pumps, compactors)
- Agricultural machinery (harvesters, balers)
- Food processing equipment (bottling and canning machines)
Availability and ordering
Eurobearing.eu, a specialist in B2B e-commerce for industrial components, offers fast availability of the Needle Roller Inner Ring LR40X45X20,5 – SKU: LR40X45X20,5-ECO. For bulk orders, you can easily request a quotation. Add this product to your cart today to ensure your machinery’s seamless operation.

