The Needle Roller Inner Ring IR20X24X16 – 20X24X16 – INA is a precision-engineered component designed for various industrial applications. Manufactured by INA, a renowned brand in bearing accessories, this inner ring has a bore diameter of 20 mm, an outer diameter of 24 mm, and a width of 16 mm. It is typically used in conjunction with needle roller and cage assemblies, providing a hardened and ground raceway surface. This product is essential in applications where high radial load capacities and compact designs are required.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 24 mm |
| Width (B) | 16 mm |
| Weight | Approximately 0.03 kg |
| Material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| ISO / cross-reference equivalent code | IR20X24X16 |
Technical advantages
The Needle Roller Inner Ring IR20X24X16 – 20X24X16 – INA offers several technical benefits, making it a preferred choice in demanding industrial environments.
- Manufactured from high-grade 100Cr6 chrome steel for enhanced wear resistance and longevity.
- Precision grinding ensures minimal dimensional deviation and optimal fit with needle roller bearings.
- Standard P0 / ABEC-1 precision class suitable for general-purpose applications.
- Compact design facilitates use in space-constrained assemblies without compromising on load capacity.
- Compatible with various needle roller and cage assemblies for versatile application use.
Typical applications
This inner ring is versatile and finds application in diverse industrial sectors and machinery.
- Automotive transmission systems (gearboxes, differential assemblies)
- Industrial printing machines (rollers, printing presses)
- Agricultural machinery (harvesters, ploughs)
- Machine tools (CNC lathes, milling machines)
- Textile machinery (spinning frames, looms)
Availability and ordering
At Eurobearing.eu, we specialize in providing mechanical industrial components like the Needle Roller Inner Ring IR20X24X16 – 20X24X16 – INA. This product is readily available for immediate dispatch. For bulk orders, you can request a quote to receive competitive pricing. Add this product to your cart or contact us for more information on ordering.

