The Needle Roller Inner Ring IR20X25X30-S1 – 20X25X30 – INA is a precision-engineered component designed to enhance the performance of needle roller bearings. Manufactured by INA, this inner ring features dimensions of 20 mm bore diameter, 25 mm outer diameter, and 30 mm width. It is specifically crafted for applications requiring a durable and precise fit, ensuring optimal load distribution and reduced friction in various industrial settings.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 25 mm |
| Width (B) | 30 mm |
| Material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Factory lubrication | Dry |
| Standard ISO code | IR20X25X30 |
Technical advantages
The IR20X25X30-S1 inner ring offers several technical advantages that contribute to its effectiveness in demanding applications:
- Manufactured from heat-treated chrome steel 100Cr6, ensuring high rolling-contact fatigue life exceeding 107 cycles.
- Standard P0 precision class for general-purpose applications, balancing performance and cost-effectiveness.
- Compatible with needle roller bearings to provide excellent load distribution and reduce wear.
- Optimal for dry environments, eliminating the need for additional lubrication.
- ISO-compliant dimensions for seamless integration into existing bearing assemblies.
Typical applications
The Needle Roller Inner Ring IR20X25X30-S1 – 20X25X30 – INA is utilized across various industries due to its robust design and reliable performance:
- Automotive manufacturing (gearbox assemblies, camshaft support)
- Industrial machinery (conveyor systems, packaging machines)
- Power transmission (high-speed gear reducers, drive shafts)
- Aerospace engineering (flight control systems, landing gear mechanisms)
- Textile machinery (weaving looms, spinning equipment)
Availability and ordering
Eurobearing.eu stands as a specialised B2B supplier offering the Needle Roller Inner Ring IR20X25X30-S1 – 20X25X30 – INA with fast availability. Clients can easily add this product to their cart or request a quotation for bulk quantities to meet their specific needs.
