SKF NA 4908.2RS needle roller bearing

SKF NA 4908.2RS is a reference of needle roller bearing, within Bearings. Request a quote for NA 4908.2RS via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SKF NA series needle roller bearing with RS sealing is a radial bearing with high load capacity in a minimal space. Its design with needles and solid inner ring allows it to withstand high radial loads and moderate speeds. It is used in applications where radial space is limited and rigidity and precision are required, such as machine tools, transmission equipment and agricultural machinery. MR Accesorios Industriales sells this line throughout Argentina.

The designation of the NA series with RS suffix reads as follows: NA indicates a needle roller bearing with solid inner ring, followed by a number that identifies the size. For example, NA 2205.2RS corresponds to a needle roller bearing with inner ring, and the suffix 2RS indicates double rubber sealing on both sides. Other examples share the same logic: the number defines dimensions and the sealing protects against contaminants. This nomenclature allows quick identification of the type and sealing characteristics.

These bearings are used in industries such as metallurgy, food, textile and agriculture. They are common in gearboxes, pumps, compressors, machine tools and linear motion equipment. In Argentina, they are found in production lines, conveyors and packaging machinery. Their ability to withstand radial loads in confined spaces makes them ideal for applications where conventional bearings do not fit. In addition, the RS sealing makes them suitable for environments with dust or moderate humidity.

To select the correct bearing, take into account the radial load, speed and available space. The RS sealing comes from the factory and does not require additional maintenance, but verify that the operating temperature is compatible with the elastomer. During assembly, ensure precise alignment between the shaft and the housing to avoid undue axial loads. Lubrication is permanent in these sealed bearings, so they should not be regreased. If the environment is very contaminated, consider additional protections.

Regarding equivalences, needle roller bearings with inner ring and sealing are available from different brands under similar, though not identical, nomenclatures. For example, other manufacturers may use prefixes such as HK, BK or suffix 2RS. Always verify the critical dimensions: bore, outer diameter and width, as well as load capacity. Not all brands offer exactly the same tolerances. If you need to replace a bearing, compare the technical specifications and consult a specialist to avoid premature failures.

If you already have the part number of your SKF needle roller bearing, send it via WhatsApp to MR Accesorios Industriales and we will quote you. We work with SKF and can advise you on the best option for your application. Remember that MR sells SKF. Do not hesitate to ask us about alternatives for your equipment.