The Needle Roller Inner Ring LR8X12X12,5 – 8X12X12,5 – INA is a precision-engineered component designed for use within needle roller bearings, providing a hardened and ground raceway. This inner ring has a bore diameter of 8 mm, an outer diameter of 12 mm, and a width of 12.5 mm. Often utilized in applications requiring compact and high-load carrying capabilities, this component is suitable for various industrial sectors, including automotive and machinery manufacturing.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 8 mm |
| Outer diameter (D) | 12 mm |
| Width (B) | 12.5 mm |
| Ring material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Factory lubrication | Dry |
Technical advantages
The Needle Roller Inner Ring LR8X12X12,5 offers several technical benefits that enhance its application in industrial settings:
- Constructed from high-grade chrome steel 100Cr6, ensuring excellent resistance to wear and fatigue.
- Precision ground to P0 / ABEC-1 standards, facilitating smooth rotational performance in needle roller assemblies.
- Compact dimensions of 8x12x12.5 mm, ideal for space-constrained environments requiring high load capacities.
- Standard CN internal clearance suitable for applications with moderate fits and thermal expansion considerations.
- Designed for dry operation, reducing the need for complex lubrication systems in certain applications.
Typical applications
The Needle Roller Inner Ring LR8X12X12,5 – 8X12X12,5 – INA meets the demands of several specialized industrial areas:
- Automotive industry (transmissions, differential gear assemblies)
- Textile machinery (spindle units, looms)
- Printing and paper processing equipment (rollers, cutter assemblies)
- Industrial gearboxes (planetary gears, reduction units)
- Agricultural machinery (harvesters, balers)
Availability and ordering
Eurobearing.eu is your trusted B2B supplier for mechanical industrial components, offering fast availability of the Needle Roller Inner Ring LR8X12X12,5 – 8X12X12,5 – INA. For bulk orders, you can easily request a quote. Add this essential component to your cart today or contact us for more information.

