INA IR25X32X22

INA IR 25X32X22 Inner Ring for Needle Roller Bearings

Description

The INA IR 25X32X22 is a high-quality inner ring designed for use with needle roller bearings. Manufactured from hardened bearing steel, it provides a precision-ground raceway for applications where the shaft cannot be used as a direct raceway. This component is crucial for achieving maximum bearing performance, rigidity, and service life in demanding industrial environments.

Specifications

• Manufacturer: INA
• Part Number: IR 25X32X22
• Inner Diameter (d): 25 mm
• Outer Diameter (F): 32 mm
• Width (B): 22 mm
• Material: Hardened bearing steel

Label Info

• Part Number: 000-021-725
• Model: IR 25X32X22
• Quantity: 1

Application

This inner ring is typically used in gearboxes, automotive transmissions, two-stroke engines, and various other general engineering applications that require high load capacity and a compact design.

Country of Origin

Manufactured by INA in Germany, a brand renowned for its high standards in bearing technology.

CO2 Impact

By purchasing this reused component, you are contributing to a circular economy and avoiding approximately 0.11 kg of CO2 emissions associated with the production of a new one. This saving is equivalent to charging a smartphone over 13 times.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the function of the IR 25X32X22 inner ring?

This inner ring serves as a hardened and precision-ground raceway for needle roller bearings. It is used when the shaft itself cannot be hardened and ground to the required specifications for a bearing raceway.

Can this inner ring be used with any brand of needle roller bearing?

While designed for INA needle roller bearings, the standardized dimensions (25mm bore, 32mm OD, 22mm width) allow it to be compatible with needle roller bearings from other manufacturers that require an inner ring of these exact specifications. Always verify tolerance classes for high-precision applications.

What is the proper installation procedure for this inner ring?

This inner ring should be installed with a press fit onto the shaft. It is recommended to use an induction heater or a press with a suitable mounting sleeve that applies force evenly to the ring’s face to prevent damage to the raceway. Ensure the shaft is clean and within the specified dimensional tolerances before mounting.

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Last Update: Friday, March 13, 2026