The IR 50X58X40 Needle Roller Inner Ring by SKF is a precision-engineered component designed for optimal performance in demanding industrial applications. This inner ring, with its dimensions of 50 mm bore diameter, 58 mm outer diameter, and 40 mm width, provides a robust solution for industries requiring high load capacities and accurate alignment. Primarily used as a bearing accessory within needle roller bearings, the SKF IR 50X58X40 serves to enhance the durability and functionality of the entire bearing assembly.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 50 mm |
| Outer diameter (D) | 58 mm |
| Width (B) | 40 mm |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
Technical advantages
The SKF IR 50X58X40 Needle Roller Inner Ring offers several technical benefits that ensure its suitability for a wide range of industrial applications:
- Manufactured from chrome steel 100Cr6, ensuring rolling-contact fatigue life exceeds 107 cycles.
- Standard precision class P0 / ABEC-1 for general-purpose use in various machinery.
- Engineered for integration with needle roller bearings, optimizing load distribution and reducing wear.
- Dimensional consistency across the inner ring ensures seamless bearing assembly compatibility.
- Designed to operate within a broad range of industrial conditions, providing flexibility in application.
Typical applications
The SKF IR 50X58X40 Needle Roller Inner Ring is designed for use in a variety of specific industrial sectors and machinery types, including:
- Automotive manufacturing (transmission systems, differential assemblies)
- Aerospace engineering (landing gear components, control surfaces)
- Heavy machinery (excavator joints, conveyor systems)
- Textile machinery (spinning frames, weaving looms)
- Packaging equipment (cartoning machines, rotary fillers)
Availability and ordering
Eurobearing.eu is a specialized B2B supplier offering fast availability of the SKF IR50X58X40 needle roller inner ring. We invite you to request a quote for bulk quantities or add this item to your cart for immediate procurement. Ensure your operations run smoothly with our reliable supply chain solutions.

