The Needle Roller Inner Ring LR25X30X20,5, manufactured by MTB, is a precision-engineered component designed for use in various industrial applications. This inner ring, with dimensions of 25mm bore diameter, 30mm outer diameter, and 20.5mm width, serves as a vital accessory in needle roller bearing assemblies. It is commonly used to provide a hardened, precision-ground raceway, enhancing the performance of needle roller bearings in settings with high radial loads.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 25 mm |
| Outer diameter (D) | 30 mm |
| Width (B) | 20.5 mm |
| Material | Chrome steel 100Cr6 |
| Precision class | P0 / ABEC-1 |
| Cage type | Open |
| Operating temperature range | -20 / +120 °C |
Technical advantages
The Needle Roller Inner Ring LR25X30X20,5 offers several technical benefits that make it ideal for demanding industrial environments:
- Constructed from heat-treated 100Cr6 chrome steel, ensuring rolling-contact fatigue life exceeding 107 cycles.
- Standard precision class P0, facilitating ease of integration into existing assemblies.
- Open cage design allows for optimal lubrication and cooling during operation.
- Operates efficiently within a temperature range of -20 to +120 °C, suitable for various industrial conditions.
- Compatible with standard needle roller bearing assemblies, enhancing versatility in design applications.
Typical applications
The Needle Roller Inner Ring LR25X30X20,5 is widely used in multiple sectors, including:
- Automotive industry (gearboxes, camshaft assemblies)
- Industrial machinery (conveyors, material handling systems)
- Textile equipment (spinning machines, looms)
- Printing presses (rollers, tension control systems)
- Agricultural machinery (harvesters, tractors)
Availability and ordering
Eurobearing.eu, a specialized B2B supplier, offers fast availability of the Needle Roller Inner Ring LR25X30X20,5 under SKU: LR25X30X20,5-ECO. Companies can easily add this product to their cart or request a quotation for bulk quantities to meet their specific needs.

