Needle roller bearing INA NK30/20-TW-XL

INA NK30/20-TW-XL is a needle roller bearing reference, within Bearings. Request a quote for NK30/20-TW-XL via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The INA NK-TW-XL series needle roller bearing is a radial bearing with high load capacity in a minimal space. Its design without an inner ring allows it to be mounted directly on a hardened and ground shaft, which simplifies the assembly and reduces weight. It is used in applications where radial space is limited and rigidity is required, such as machine tools, transmission equipment and precision mechanisms. MR Accesorios Industriales carries this line as part of its bearing catalogue for Argentine industry.

The NK-TW-XL series designation reads as follows: NK identifies a needle roller bearing with a machined outer ring and without an inner ring; the number that follows, as in NK30/20-TW-XL, indicates the shaft diameter and the cage width in millimetres. The suffix TW corresponds to a polyamide cage reinforced with glass fibres, suitable for high speeds and moderate temperatures. XL indicates the current generation of the product, with improvements in load capacity and service life. Knowing these suffixes allows you to interpret the complete part number and select the correct variant.

In Argentine industry, these bearings are found in machine tool spindles, transmission gearboxes, pumps, compressors, packaging equipment and linear motion systems. They also appear in the automotive sector, in components such as gearboxes and oil pumps, and in agricultural machinery, where resistance to contamination and intermittent loads is key. Their low profile makes them ideal for redesigns that seek to save space without sacrificing load capacity.

To select correctly, take into account the hardness and roughness of the shaft: since there is no inner ring, the raceway is ground directly on the shaft, with an appropriate surface hardness. Sealing is another critical point: if the environment has dust or chips, radial shaft seals or side covers should be provided. Lubrication can be grease or oil, depending on the speed and working temperature. During mounting, ensure precise alignment between the shaft and the housing to avoid edge loads that reduce bearing life.

INA needle roller bearings are interchangeable with those of other European brands that follow the same dimensional nomenclature, such as SKF, FAG or NTN, as long as the diameter, width and load capacity measurements match. In practice, interchangeability requires verifying not only the main dimensions, but also the cage type, internal clearance and the tolerances of the shaft and housing. For replacements, the safest approach is to compare the technical specifications and consult a specialist.

If you need an INA needle roller bearing from the NK-TW-XL series, write to us on WhatsApp with the complete part number or the measurements of your application. At MR Accesorios Industriales we advise you so you can find the right variant and we will quote you promptly.

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