SKF NKS 20 needle roller bearing

SKF NKS 20 is a reference of needle roller bearing, within Bearings. Request a quote for NKS 20 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The SKF NKS series needle roller bearing is a single-row radial bearing without an inner ring, designed to withstand high radial loads with a low profile. It is used in applications where radial space is limited and high load capacity is required, such as transmissions, pumps and machine tools. Its design allows it to be mounted directly on the shaft, which acts as the raceway, provided it meets the appropriate hardness and roughness.

The designation NKS identifies SKF needle roller bearings without an inner ring, with a steel cage and a single row of needles. The number that follows indicates the bore diameter of the outer ring, in millimeters. For example, NKS 20 has a 20 mm bore, NKS 25 has 25 mm, and so on. This nomenclature makes it easy to select quickly according to shaft diameter. It does not include additional suffixes in the examples listed, so this is the standard version, without seals or special grooves.

These bearings are used in industries such as automotive, metallurgical, food and machine tool. They are common in gearboxes, oil pumps, compressors, electric motors and power transmission equipment. In Argentina, they are found in production lines, road equipment and agricultural machinery, where radial space is critical and loads are considerable. Their ability to withstand high radial loads makes them suitable for continuous operation and demanding conditions.

To select an NKS bearing, verify that the shaft has the appropriate hardness and roughness to serve as a raceway, since it does not include an inner ring. The alignment between the shaft and the housing must be precise to avoid additional stresses. Lubrication can be with grease or oil, depending on the application and speed conditions. Although it does not have integrated seals, it can be combined with external radial shaft seals to protect it from contaminants. During assembly, avoid impacts that could damage the needles or the cage.

As for equivalents, needle roller bearings without an inner ring from other brands may have similar designations, but it is essential to verify the exact dimensions and capacities before interchanging them. SKF is a world reference brand, and MR Accesorios Industriales sells it as a brand. If you need to replace a bearing, compare the outer ring dimensions, width and load capacity. Not all series are directly interchangeable, so always consult a specialist.

To request a quote for the SKF NKS series needle roller bearing you need, send the complete part number by WhatsApp to MR Accesorios Industriales. We advise you so you can choose the right option for your application. At MR Accesorios Industriales we are here to help you find the right solution.