RKB NNUP 4956 cylindrical roller bearing

RKB NNUP 4956 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NNUP 4956 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

NNUP series cylindrical roller bearings are components with high radial load capacity, designed to withstand heavy loads and moderate speeds. They are used in industrial applications requiring rigidity and precision, such as machine tools, gearboxes and mining equipment. MR Accesorios Industriales sells this RKB line, with more than 80 years of experience in the Argentine market.

The NNUP designation identifies double-row cylindrical roller bearings with a special configuration: the letter N indicates the presence of grooves on the outer ring, while the U and P indicate particular features on the inner and outer rings that allow certain axial displacements. Examples NNUP 4868, NNUP 4880, NNUP 4956 and NNUP 4964 correspond to variants of this series, where the numbers refer to standardized dimensions. To correctly interpret each code, it is essential to consult the manufacturer's tables.

These bearings are used in industries such as metallurgy, cement, mining and machine tools. In Argentina, they are common in gearboxes, main spindles, crushing and rolling equipment, where radial loads are high and great rigidity is required. They also appear in railway applications and large industrial fans. Their ability to withstand combined loads makes them versatile in demanding environments.

To select an NNUP bearing, it is key to consider radial and axial load, rotational speed and environmental conditions. Mounting must ensure precise alignment to avoid parasitic stresses. Proper lubrication, whether grease or oil, extends service life. Sealing will depend on external contamination. In addition, internal clearance must be verified according to the application. Mounting with the proper fit on the shaft and housing ensures the expected performance.

As for equivalents, RKB NNUP bearings can be interchanged with products from other brands that follow the same international nomenclature. It is important to compare dimensions and tolerances to ensure compatibility. If you need to replace an existing bearing, you can send us the code or the measurements and we will indicate the compatible alternative. MR Accesorios Industriales advises you so that you find the right part.

To request a quote for RKB NNUP bearings, write to us on WhatsApp with the exact code you need. We will reply promptly with the commercial information. We can also advise you if you have doubts about the designation or the application. At MR Accesorios Industriales we work to provide you with solutions in bearings and power transmission.