The Needle Roller Inner Ring IR40X48X23 – 40X48X23 from Eurobearing.eu is a precisely engineered component designed for specialized industrial applications. With dimensions of 40 mm bore diameter, 48 mm outer diameter, and 23 mm width, it serves as a crucial bearing accessory to support needle rollers in various mechanical assemblies. This component is typically utilized in applications where space is limited but high load capacity is required, such as automotive transmissions and industrial machinery.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 40 mm |
| Outer diameter (D) | 48 mm |
| Width (B) | 23 mm |
| Material | Chrome steel 100Cr6 |
| Basic dynamic load rating (C) | Not specified |
| Basic static load rating (C0) | Not specified |
| Limiting speed | Not specified |
| Operating temperature range | Not specified |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The Needle Roller Inner Ring IR40X48X23 provides numerous technical benefits that enhance its performance in demanding applications:
- Made from heat-treated 100Cr6 chrome steel, offering excellent rolling-contact fatigue life.
- Standard CN radial clearance, suitable for assemblies that do not require preload.
- Compatible design for high load-carrying capacity in compact spaces.
- Precision class P0 / ABEC-1 ensures basic accuracy for general applications.
- Designed to fit seamlessly with needle rollers, enhancing load distribution and reducing wear.
Typical applications
This inner ring is used in a variety of specialized sectors, catering to specific machine types and industry needs:
- Automotive industry (automatic transmissions, differentials)
- Industrial machinery (pumps, compressors, conveyors)
- Aerospace applications (mechanical actuators, landing gear systems)
- Construction equipment (hydraulic systems, crane booms)
- Textile machinery (spinning frames, weaving machines)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the Needle Roller Inner Ring IR40X48X23, SKU: IR40X48X23IS1OF-ECO. With fast availability and the option to request a quotation for bulk quantities, you can easily add this component to your cart or request a quotation to meet your specific business needs.

