The IR 70X80X30 Needle Roller Inner Ring by SKF is a precision-engineered component designed for use in conjunction with needle roller bearings. With its main dimensions of 70 mm bore diameter, 80 mm outer diameter, and 30 mm width, this inner ring serves as a critical bearing accessory within a variety of industrial applications. Renowned for its ability to accommodate high radial loads, the IR 70X80X30 model is commonly utilized in sectors such as manufacturing and automotive industries.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 70 mm |
| Outer diameter (D) | 80 mm |
| Width (B) | 30 mm |
| Ring material | Chrome steel 100Cr6 |
| Basic dynamic load rating (C) | Not specified |
| Basic static load rating (C0) | Not specified |
| Limiting speed | Not specified |
| Cage type | Not specified |
| Operating temperature range | Not specified |
| Factory lubrication | Dry |
Technical advantages
The IR 70X80X30 Needle Roller Inner Ring offers several distinct technical benefits, making it an excellent choice for demanding industrial environments:
- Manufactured from high-grade chrome steel 100Cr6, ensuring superior wear resistance and durability.
- Dimensions of 70 mm x 80 mm x 30 mm allow for integration with standard needle bearings without the need for modifications.
- Dry lubrication facilitates maintenance-free operation, reducing downtime and service costs.
- Robust construction supports high radial loads, enhancing the operational lifespan of the bearing assembly.
- Precision-engineered to meet exacting industry standards, ensuring compatibility and reliable performance.
Typical applications
The SKF IR 70X80X30 Needle Roller Inner Ring is suited for a wide array of applications across various industries:
- Automotive manufacturing (gearboxes, transmissions)
- Industrial machinery (metal cutting machines, presses)
- Pneumatics and hydraulics (cylinders, pumps)
- Agricultural equipment (tractors, harvesters)
- Heavy-duty construction equipment (cranes, bulldozers)
Availability and ordering
Eurobearing.eu, as a specialized B2B supplier, ensures the fast availability of the IR70X80X30-SKF Needle Roller Inner Ring. Customers can easily add this item to their cart or request a quotation for bulk quantities directly through our platform.

