The Needle Roller Inner Ring LR10X13X12,5 – 10X13X12,5 – INA is a precision-engineered component designed for demanding industrial environments. Manufactured by INA, this inner ring is a crucial accessory in needle roller bearings, offering enhanced load distribution. With dimensions of 10 mm bore diameter, 13 mm outer diameter, and a width of 12.5 mm, it is ideal for applications requiring compact yet robust components. Commonly used in sectors such as automotive, aerospace, and heavy machinery, this inner ring provides reliable performance in high-load situations.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 10 mm |
| Outer diameter (D) | 13 mm |
| Width (B) | 12.5 mm |
| Ring material | Chrome steel 100Cr6 |
| Basic dynamic load rating (C) | 12.3 kN |
| Basic static load rating (C0) | 9.5 kN |
| Operating temperature range | -30 / +120 °C |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
Designed to meet rigorous industrial standards, the Needle Roller Inner Ring LR10X13X12,5 offers several technical benefits:
- Manufactured with heat-treated 100Cr6 chrome steel, ensuring rolling-contact fatigue life exceeds 10^7 cycles.
- Standard CN radial clearance is optimal for assemblies that do not require preload.
- Capable of handling basic dynamic loads up to 12.3 kN, making it suitable for high-stress applications.
- Wide operating temperature range from -30 to +120 °C, allowing for versatile application in various environments.
- Adheres to precision class P0 / ABEC-1, ensuring standard dimensional accuracy and reliability.
Typical applications
Due to its robust construction and precise engineering, the Needle Roller Inner Ring LR10X13X12,5 is suited for various industrial applications:
- Automotive manufacturing (gearboxes, transmission systems)
- Aerospace engineering (wing flap actuators, landing gear systems)
- Heavy machinery (cranes, hydraulic presses)
- Textile machinery (spinning frames, weaving machines)
- Packaging equipment (conveyor systems, rotary cutters)
Availability and ordering
At Eurobearing.eu, we specialize in providing a wide range of mechanical industrial components, including the Needle Roller Inner Ring LR10X13X12,5-INA. This item is available for immediate purchase, and we offer the option to request a quote for bulk quantities. Add to cart or contact us for a quotation to secure your supply.

