The Needle Roller Inner Ring IR30X35X26 – 30X35X26 – INA is a precision component designed for use in various industrial applications. Manufactured by INA, this inner ring features a bore diameter of 30 mm, an outer diameter of 35 mm, and a width of 26 mm. It is typically used in conjunction with needle roller bearings to provide a hardened raceway for the rollers, ensuring optimal performance in high-load environments.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 30 mm |
| Outer diameter (D) | 35 mm |
| Width (B) | 26 mm |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
| Operating temperature range | -20 / +120 °C |
Technical advantages
The Needle Roller Inner Ring IR30X35X26 – 30X35X26 – INA offers several technical benefits that enhance its application in demanding industrial settings:
- Constructed from heat-treated 100Cr6 chrome steel, providing a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, accommodating assemblies without preload.
- Compatible with a wide operating temperature range from -20 to +120 °C.
- Precision class P0 / ABEC-1, ensuring reliable dimensional accuracy.
- Provides a stable and hardened raceway for needle roller bearings, optimizing bearing performance.
Typical applications
This needle roller inner ring is utilized across various industries, particularly in applications requiring high precision and load capacity:
- Automotive engineering (transmissions, camshaft followers)
- Textile machinery (spindle supports, looms)
- Industrial gearboxes (planetary gears, differential units)
- Hydraulic and pneumatic systems (pumps, actuators)
Availability and ordering
Eurobearing.eu is a specialized B2B supplier offering fast availability of the Needle Roller Inner Ring IR30X35X26 – 30X35X26 – INA. Businesses can easily add this component to their cart or request a quotation for bulk quantities through our platform. Ensure operational efficiency with our reliable supply chain solutions.

