The IR 190X210X50 Needle Roller Inner Ring by SKF is a critical component in the category of bearing accessories, specifically designed for needle roller bearings. This inner ring measures 190 mm in bore diameter and 210 mm in outer diameter, with a width of 50 mm. Known for its precision, the SKF IR 190X210X50 is often used in mechanical systems where high radial loads are prevalent. This component is integral in ensuring the effective operation of needle roller bearings, providing a stable and accurate surface for the rollers to interact with.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 190 mm |
| Outer diameter (D) | 210 mm |
| Width (B) | 50 mm |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Operating temperature range | -20 / +120 °C |
| Internal clearance | Standard CN |
Technical advantages
Utilizing the SKF IR 190X210X50 Needle Roller Inner Ring comes with several tangible benefits:
- Manufactured from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance provides optimal performance in systems without requiring preload adjustments.
- Precision class P0 / ABEC-1 ensures consistent performance in high-load applications.
- Designed to operate efficiently within a temperature range of -20 to +120 °C, making it versatile for different industrial environments.
- Optimized for high radial load capacity, enhancing the reliability of needle roller bearings in demanding applications.
Typical applications
The SKF IR 190X210X50 is commonly used across various sectors, including:
- Automotive manufacturing (transmissions, differential assemblies)
- Industrial machinery (conveyor systems, gearboxes)
- Agricultural equipment (tractors, harvesters)
- Heavy-duty construction machinery (excavators, cranes)
- Railway systems (bogie assemblies, axle boxes)
Availability and ordering
Eurobearing.eu, a specialized B2B supplier of mechanical industrial components, offers the SKF IR 190X210X50 Needle Roller Inner Ring with fast availability. Businesses can easily add this product to their cart or request a quotation for bulk quantities to meet specific operational needs.

