The Needle Roller Inner Ring IR7X10X10,5 – 7X10X10,5 – INA is a precision-engineered component designed for use in various industrial applications. Manufactured by INA, this inner ring features dimensions of 7 mm bore diameter, 10 mm outer diameter, and a width of 10.5 mm. It is primarily used in conjunction with needle roller bearings to provide a hardened, wear-resistant raceway, enhancing the performance of the bearing assembly in high-load applications.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 7 mm |
| Outer diameter (D) | 10 mm |
| Width (B) | 10.5 mm |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Dry |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
Engineered for performance, the Needle Roller Inner Ring IR7X10X10,5 – INA offers several technical benefits that optimize its functionality in demanding environments:
- Rings constructed from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, facilitating seamless integration into assemblies without preload adjustments.
- Dry factory lubrication minimizes maintenance requirements while maintaining optimal performance.
- Manufactured to Precision class P0 / ABEC-1, providing adequate accuracy for general industrial applications.
- Dimensional consistency ensures compatibility with corresponding INA needle roller bearings for enhanced load distribution.
Typical applications
The Needle Roller Inner Ring IR7X10X10,5 is suitable for a variety of industrial sectors and machinery types, including:
- Textile machinery (loom components, spinning frames)
- Automotive transmission systems (gearboxes, differential assemblies)
- Heavy-duty agricultural equipment (harvesters, balers)
- Hydraulic and pneumatic systems (cylinders, pumps)
- Industrial conveyor systems (idler rollers, drive pulleys)
Availability and ordering
Eurobearing.eu, a specialized B2B supplier of mechanical components, offers fast availability of the Needle Roller Inner Ring IR7X10X10,5 – INA. We accommodate requests for bulk orders, ensuring you can efficiently meet your production needs. Add to cart or request a quotation for tailored pricing.

