INA RNA4838-XL needle roller bearing

INA RNA4838-XL is a reference of needle roller bearing, within Bearings. Request a quote for RNA4838-XL via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

The INA RNA-XL series needle roller bearing is a radial bearing without an inner ring, designed to withstand high radial loads with a very small cross-section. It is mounted directly on a hardened and ground shaft, which saves space and weight in assemblies where dimensions are critical. It is a common solution in transmissions, pumps, compressors and continuous production machinery, where precision and load capacity are decisive.

The RNA-XL series designation is read in parts. The letters RNA indicate that it is a needle roller bearing without an inner ring, with a cage and guided needles. The number that follows, as in RNA49/22-XL or RNA69/28-XL, identifies the size and the dimension series: those beginning with 49 correspond to one specific section series, and those beginning with 69 to another with different proportions. The -XL suffix indicates the manufacturer's current design, with improvements in design and materials. Codes beginning with 48 correspond to the 48 series, with an even more compact section. Knowing these variants allows you to select the right bearing according to the available space and the load to be supported.

In Argentine industry, these bearings are used in a wide variety of applications. They are found in gearboxes, water and oil pumps, air compressors, machine tools, packaging and conveying equipment, and in the food industry. They are also found in the automotive sector, in components such as gearboxes and clutch systems, and in agricultural machinery, where robustness and the ability to withstand radial loads are essential. Their compact design makes them ideal for spaces where a larger bearing cannot be installed.

To correctly select an RNA-XL needle roller bearing, take into account the radial load it must withstand, the rotational speed and the environmental conditions. Since they have no inner ring, the shaft must be hardened and ground, with suitable hardness and roughness to serve as a raceway. It is essential to verify the alignment between the shaft and the housing, since these bearings are sensitive to misalignment. Lubrication can be with grease or oil, depending on the application, and sealing the assembly protects against contamination. During mounting, avoid impacts that could damage the needles or the cage.

When looking for equivalents, it is common to find needle roller bearings without an inner ring from other manufacturers that perform similar functions. However, dimensions and load capacities can vary between brands, so it is recommended to verify interchangeability by consulting the technical tables. INA is a reference brand in this type of bearing, and MR Accesorios Industriales sells it as part of its bearing line. If you need to replace an existing bearing, the safest approach is to identify the complete part number and consult a specialist.

To request a quote for the INA needle roller bearing you need, send the complete part number via WhatsApp to MR Accesorios Industriales. If you cannot find the exact reference, write to us with the model or the shaft and housing dimensions, and we will help you identify the right variant. MR Accesorios Industriales advises you so you choose the correct bearing for your application.