NTN NN4960K cylindrical roller bearing de doble hilera

NTN NN4960K is a reference of cylindrical roller bearing de doble hilera, within Bearings. Request a quote for NN4960K via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

NTN NN series bearings are double row cylindrical roller bearings, designed to withstand high radial loads with high rotational precision. They are used in machine tool spindles, gearboxes and equipment where rigidity and rotational accuracy are critical. MR Accesorios Industriales sells this line as part of its bearing offering for Argentine industry.

The NN series designation reads as follows: the letters NN indicate a double row cylindrical roller bearing; the number that follows indicates the size within the series. The final letter K indicates that the bore is tapered, which allows it to be mounted with an interference fit on a tapered shaft or with an adapter sleeve. This combination of double row and tapered bore is typical of applications that demand high radial rigidity and good concentricity.

In Argentine industry, these bearings appear in grinding and milling machine spindles, in machining machine heads, in speed reducers and in transmission equipment that works with significant radial loads. They are also found in process pumps, compressors and textile machinery, where rotational precision and load capacity are decisive for the service life of the equipment.

To select the correct bearing, take into account the radial load it will withstand, the rotational speed and the type of lubrication planned. The tapered bore of the NN series makes mounting with controlled fit easier, but it requires verifying the concentricity of the shaft and the housing. Lubrication can be grease or oil depending on the application; in high-speed spindles oil is usually used. Alignment between shaft and housing is key to avoiding additional stresses.

If you need to replace a bearing from another brand, the most practical approach is to compare the complete designation: series, size number and K suffix. Equivalences between manufacturers are based on those dimensional and functional characteristics, not on the isolated code. Therefore, when you request an alternative, provide the exact code that appears on the part or on the drawing, and from MR we will indicate the compatible option.

To request a quote for any bearing in the NN series, write to us via WhatsApp with the complete code or with the measurements and characteristics you need. At MR Accesorios Industriales we will reply shortly with the corresponding quote. If you cannot find the exact variant, send us the model anyway and we will help you resolve it.