Needle roller bearing SKF NK 80/25

SKF NK 80/25 is a needle roller bearing reference, within Bearings. Request a quote for NK 80/25 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF NK series needle roller bearing is a compact radial bearing without an inner ring, designed to withstand high radial loads in reduced spaces. It is mounted directly on a hardened and ground shaft, which allows reducing the size of the assembly. It is a common solution in applications where the outer diameter is limited and high load capacity is needed. MR Accesorios Industriales supplies this series in sizes that combine bore diameter and width, such as NK 12/12 or NK 16/20.

The NK series designation is read as NK followed by two numbers separated by a slash: the first indicates the bore diameter in millimeters and the second the bearing width. For example, NK 12/12 has a 12 mm bore diameter and 12 mm width; NK 16/20 has a 16 mm bore and 20 mm width. This nomenclature allows quickly identifying the size without needing to consult additional tables. The NK series does not include an inner ring, so the shaft must meet the appropriate hardness and roughness to act as a raceway.

These bearings are used in industries such as automotive, machine tools, power transmission equipment, pumps, compressors and agricultural machinery. In Argentina, they are common in gearbox repairs, electric motors and linear guidance systems. Their compact design makes them ideal for spaces where a ball bearing or cylindrical roller bearing would not fit. They are also used in slow oscillation applications and at pivot points requiring high radial rigidity.

To correctly select an NK bearing, take into account the radial load it must withstand, the rotational speed and the environmental conditions. Since it has no inner ring, the shaft must have adequate surface hardness, generally hardened and ground, with tight tolerances. Mounting requires precise alignment and adequate lubrication, since the needles are sensitive to lack of lubricant. If the shaft is not prepared, a bearing with an inner ring can be chosen, although that changes the dimensions of the assembly.

Regarding equivalences, other manufacturers offer needle roller bearings with similar designations, but they are not always directly interchangeable. The letters and numbers may vary according to the standard or manufacturer, and tolerances or load capacities may differ. Therefore, when replacing a bearing, it is essential to verify the critical dimensions and operating conditions. MR Accesorios Industriales supplies the SKF brand, but if you need to compare with another reference, we can help you find the right option.

If you already have the part number of your SKF needle roller bearing, send it by WhatsApp to MR Accesorios Industriales and we will quote the exact size. We can also advise you if you need help identifying the correct series or suffix. We work with more than 80 years of experience in the industry, offering bearings, housings, power transmission and lubricants for all types of industries.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.