The Needle Roller Inner Ring LR12X15X22,5 – 12X15X22,5 – INA is a precision-engineered component designed for use in various industrial applications. Manufactured by INA, a leading brand in bearing accessories, this inner ring measures 12 mm in bore diameter, 15 mm in outer diameter, and 22.5 mm in width. It is typically employed in applications where minimal radial space is available, providing a hardened and ground raceway for needle roller bearings. This component is crucial in industries where high load capacity and compact design are essential.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 12 mm |
| Outer diameter (D) | 15 mm |
| Width (B) | 22.5 mm |
| Weight | Approx. 22 g |
| Basic dynamic load rating (C) | Not specified |
| Basic static load rating (C0) | Not specified |
| Limiting speed | Not specified |
| Reference speed | Not specified |
| Cage type | Not specified |
| Shielding / Sealing | Open |
| Operating temperature range | Not specified |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Dry |
| Precision class | P0 / ABEC-1 |
| Internal clearance | Standard |
| ISO / cross-reference equivalent code | Not specified |
Technical advantages
The Needle Roller Inner Ring LR12X15X22,5 – 12X15X22,5 – INA offers several technical advantages that make it suitable for demanding industrial environments.
- Manufactured from heat-treated 100Cr6 chrome steel for superior rolling-contact fatigue resistance.
- Standard precision class P0 / ABEC-1 ensuring consistent performance in general-purpose applications.
- Open design facilitates easy integration into existing assemblies or lubrication systems.
- Compact dimensions allow for use in restricted spaces without compromising load capacity.
- Dry lubrication suited for applications where oil or grease might interfere with product function.
Typical applications
This needle roller inner ring is utilized across various industries and machinery where space-saving and load-bearing capabilities are critical.
- Automotive transmissions (gearbox assemblies, differential systems)
- Industrial machinery (conveyor systems, material handling equipment)
- Aerospace components (actuators, control surfaces)
- Textile machinery (spinning and weaving machines)
- Construction equipment (excavator pivot points, crane booms)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the Needle Roller Inner Ring LR12X15X22,5-INA, offering fast availability and the option to request a quote for bulk orders. Visit our website to add this product to your cart or contact us for a quotation on larger quantities.

