The Needle Roller Inner Ring LR25X30X38,5 – 25X30X38,5 – INA is a precision-engineered component designed for use in a variety of industrial applications. Manufactured by INA, this needle roller inner ring features exact dimensions of 25 mm bore diameter, 30 mm outer diameter, and 38.5 mm width, making it suitable for high-load situations and compact assembly requirements. It is commonly used in machinery where space constraints and high rotational speeds are prevalent, offering robust support for needle roller bearings.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 25 mm |
| Outer diameter (D) | 30 mm |
| Width (B) | 38.5 mm |
| Basic dynamic load rating (C) | Not specified |
| Basic static load rating (C0) | Not specified |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
Designed for demanding industrial environments, the Needle Roller Inner Ring LR25X30X38,5 – 25X30X38,5 – INA offers several technical advantages:
- Rugged construction in 100Cr6 chrome steel, enhancing wear resistance and fatigue strength.
- Standard CN radial clearance, making it suitable for assemblies without the need for preload adjustments.
- Compact dimensions allow for high-load applications in limited spaces.
- Precision class P0 / ABEC-1 ensures consistency in performance across varied operational conditions.
- Compatible with a range of needle roller bearings for versatile mechanical integration.
Typical applications
The Needle Roller Inner Ring LR25X30X38,5 – 25X30X38,5 – INA is suitable for use in:
- Automotive transmissions and differentials
- Heavy-duty industrial gearboxes
- Textile machinery components
- Construction equipment such as cranes and loaders
- Paper and printing machinery
Availability and ordering
Eurobearing.eu, a specialized B2B supplier of mechanical industrial components, offers fast availability of the Needle Roller Inner Ring LR25X30X38,5 – 25X30X38,5 – INA. Contact us for a quote on bulk quantities or add the product to your cart for immediate purchase.

