The Needle Roller Inner Ring IR20X25X38,5-S1, offered by MTB, is an essential bearing accessory designed for precision applications. With dimensions of 20x25x38.5 mm, this inner ring serves a critical role in enhancing the performance and longevity of needle roller bearings by providing a hardened and precision-finished raceway. Commonly employed in industries requiring high rotational speeds and load capacities, the IR20X25X38,5-S1 is a reliable choice for a wide range of mechanical systems.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 25 mm |
| Width (B) | 38.5 mm |
| Basic dynamic load rating (C) | 10.5 kN |
| Basic static load rating (C0) | 12.3 kN |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The Needle Roller Inner Ring IR20X25X38,5-S1 offers several technical benefits that make it a valuable component in demanding applications:
- Manufactured from heat-treated chrome steel 100Cr6, ensuring a high rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, suitable for assemblies without the need for preload adjustments.
- Capable of handling dynamic loads up to 10.5 kN, making it suitable for high-stress environments.
- Static load capacity of 12.3 kN, providing excellent resistance under stationary conditions.
- Precision class P0 / ABEC-1, ensuring standard accuracy for most industrial needs.
Typical applications
The IR20X25X38,5-S1 is widely applicable across various sectors, including:
- Automotive industry (transmissions, differential assemblies)
- Textile machinery (spinning frames, looms)
- Industrial gearboxes (planetary, helical)
- Construction equipment (hydraulic pumps, earth-moving machinery)
- Printing machinery (rollers, conveyors)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for mechanical components, offering rapid availability of the Needle Roller Inner Ring IR20X25X38,5-S1 under SKU: IR20X25X38,5IS1-ECO. For bulk purchases, you can easily request a quote. Visit our website to add this product to your cart or to request a quotation for larger quantities.
