Needle roller bearing SKF RNA 4905.2RS

SKF RNA 4905.2RS is a needle roller bearing reference, within Bearings. Request a quote for RNA 4905.2RS via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF needle roller bearing of the RNA series with RS suffix is a radial bearing without inner ring, with two contact seals that protect the needle assembly. It is used when radial space is limited and the shaft can be ground and used directly as a raceway. It is a compact solution for radial loads in transmissions, pumps, machine tools and industrial equipment. MR Accesorios Industriales sells this SKF line and advises you to choose the correct part number.

The designation of these bearings is read as follows: RNA indicates that it is a needle roller bearing without inner ring, with a machined outer ring and guided needles. The number that follows identifies the series and size; for example, RNA 22/6.2RS and RNA 22/8.2RS correspond to the 22 series with shaft diameters of 6 and 8 mm respectively, while RNA 2202.2RS and RNA 2204.2RS belong to the 2200 series. The part numbers RNA 4901.2RS, RNA 4902.2RS, RNA 4903.2RS and RNA 4905.2RS are from the 4900 series, with higher capacity. The suffix 2RS indicates that the bearing has contact seals on both sides, which retains lubricant and blocks contaminants.

These bearings are used in industries such as food, cement, steel, paper and machine tools. They are present in gearboxes, pumps, compressors, fans, conveyors and packaging equipment. Their design without inner ring allows reducing the outer diameter and weight of the assembly, something critical in mechanisms where radial space is scarce. In Argentina, they are found in production lines, road equipment and agricultural machinery, where robustness and radial load capacity are decisive.

To select correctly, take into account the radial load that the bearing must support, the rotation speed and the environmental conditions. The 2RS suffix already provides sealing, but if there is exposure to dust or liquids, evaluate additional protections. Factory lubrication is usually sufficient for the service life, although in demanding applications it may require relubrication. Mounting requires that the shaft has the proper hardness and roughness to act as a raceway; verify alignment between the housing and the shaft to avoid parasitic axial loads.

Regarding equivalents, needle roller bearings without inner ring are identified by their shaft diameter, width and load capacity. Brands such as INA, NSK or NTN offer similar products, but the part numbers do not always match. Interchangeability depends on dimensions and tolerances, not only on the part number. Therefore, before replacing a bearing, compare the actual measurements and consult a specialist. At MR Accesorios Industriales we can help you find the right replacement within the SKF line we sell.

If you need an SKF RNA series needle roller bearing with RS seal, send us the complete part number via WhatsApp. At MR Accesorios Industriales we quote and advise you so that the choice is correct. With more than 80 years in the market, we know that technical detail makes the difference.

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