The Needle Roller Inner Ring IR20X25X18 – 20X25X18 – INA is a precision-engineered component designed for use in industrial applications requiring reliable performance under high load conditions. Manufactured by INA, this inner ring has a bore diameter of 20 mm, an outer diameter of 25 mm, and a width of 18 mm. It is typically utilized in conjunction with needle roller bearings to enhance load capacity and extend the service life of the bearing assembly. This product is particularly suited for use in environments where space is limited, and high radial loads are present.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 20 mm |
| Outer diameter (D) | 25 mm |
| Width (B) | 18 mm |
| Material | Chrome steel |
| Operating temperature range | -20 to +120 °C |
| Precision class | P0 |
Technical advantages
The Needle Roller Inner Ring IR20X25X18 – 20X25X18 – INA offers several technical advantages that make it an excellent choice for demanding industrial applications:
- Compact design allows for integration into tight spaces without sacrificing performance.
- High resistance to wear due to the use of chrome steel, ensuring a rolling-contact fatigue life exceeding 10^6 cycles.
- Standard P0 precision class, suitable for general industrial applications where precision is required.
- Operational temperature range from -20 to +120 °C, accommodating diverse environmental conditions.
- Specifically designed to work with needle roller bearings, enhancing load capacity and reducing friction.
Typical applications
This inner ring is ideal for use in various specific industries and machinery types, including but not limited to:
- Automotive transmissions (gearboxes, differential units)
- Industrial machinery (conveyors, hydraulic pumps)
- Textile machinery (knitting machines, looms)
- Construction equipment (cranes, excavators)
- Agricultural machines (tractors, harvesters)
Availability and ordering
At Eurobearing.eu, we specialize in providing B2B solutions for mechanical industrial components. The Needle Roller Inner Ring IR20X25X18 – 20X25X18 – INA is readily available for fast delivery. For bulk quantities, customers are encouraged to request a quote to benefit from competitive pricing. Add this item to your cart today for seamless integration into your industrial applications.

