The Needle Roller Inner Ring IR22X28X20,5 – 22X28X20,5 – INA is a precision-engineered component designed for use in needle roller bearings. Manufactured by INA, this inner ring is a key accessory for bearing assemblies, providing a hardened raceway surface. With primary dimensions of 22 mm bore diameter, 28 mm outer diameter, and 20.5 mm width, it is suitable for a variety of industrial applications where compact and efficient load handling is critical.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 22 mm |
| Outer diameter (D) | 28 mm |
| Width (B) | 20.5 mm |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Weight | Not specified |
| Basic dynamic load rating (C) | Not specified |
| Basic static load rating (C0) | Not specified |
| Limiting speed | Not specified |
| Reference speed | Not specified |
| Cage type | Not specified |
| Shielding/Sealing | Open |
| Operating temperature range | Not specified |
| Factory lubrication | Dry |
| Internal clearance | Standard |
Technical advantages
The Needle Roller Inner Ring IR22X28X20,5 offers several advantages for industrial applications:
- Manufactured from 100Cr6 chrome steel, ensuring a rolling-contact fatigue life of over 10^7 cycles.
- Open design allows flexibility in lubrication choice, accommodating specific application needs.
- Standard precision class P0 / ABEC-1 suitable for general-purpose applications requiring moderate precision.
- Compatible with a wide range of needle roller bearings, enhancing versatility in assembly configurations.
- Standard internal clearance provides ease of installation and reliable performance without preload.
Typical applications
This needle roller inner ring is widely used across various industries, including:
- Automotive manufacturing (transmission systems, differential assemblies)
- Industrial machinery (conveyor belt rollers, drive shafts)
- Agricultural equipment (harvesters, seeders)
- Construction machinery (cranes, excavators)
- Aerospace applications (control linkages, landing gear systems)
Availability and ordering
Eurobearing.eu is your trusted B2B supplier for mechanical components, offering fast availability of the Needle Roller Inner Ring IR22X28X20,5-INA. For bulk quantities, you can easily request a quote. Visit our website to add this product to your cart or contact us for more information.

