The Needle Roller Inner Ring IR90X105X63 – 90X105X63 is a precision-engineered component designed for use in a variety of industrial applications. This component, categorized under bearing accessories and specifically needle roller inner rings, is an essential part of assemblies requiring precise rotational accuracy. With dimensions of 90 mm bore diameter, 105 mm outer diameter, and 63 mm width, it is suitable for high-load environments. This product serves as a critical component in enhancing the performance of needle roller bearings by providing a hardened raceway surface.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 90 mm |
| Outer diameter (D) | 105 mm |
| Width (B) | 63 mm |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Dry |
| Precision class | P0 / ABEC-1 |
Technical advantages
This needle roller inner ring offers several technical benefits:
- Constructed from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard P0 precision class, suitable for general-purpose applications requiring consistent performance.
- Dry factory lubrication allows for versatile applications without specific lubrication requirements.
- Designed for seamless integration into assemblies, providing an optimal raceway for needle roller bearings.
- Manufactured with precise dimensions to minimize installation errors and facilitate maintenance-free operation.
Typical applications
The Needle Roller Inner Ring IR90X105X63 is ideal for use in the following sectors:
- Automotive industry (gearboxes, transmission systems)
- Industrial machinery (hydraulic pumps, compressors)
- Agricultural equipment (harvesters, tillage machines)
- Printing and paper machinery (rollers, drive systems)
- Construction equipment (cranes, excavators)
Availability and ordering
Available at Eurobearing.eu, a specialized B2B supplier of mechanical industrial components, the Needle Roller Inner Ring IR90X105X63 is ready for fast shipment. Customers can easily add this product to their cart or request a quotation for bulk quantities to meet larger-scale needs.

