Needle roller bearing NTN NK15/16R

NTN NK15/16R is a needle roller bearing reference, within Bearings. Request a quote for NK15/16R via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN NK series needle roller bearing is a single-row radial bearing without an inner ring, mounted directly on the shaft. Its compact design with a needle cage allows it to carry high radial loads in very small radial spaces. It is used in applications where the shaft diameter is already hardened and ground, and where minimizing the envelope size is the goal. MR Accesorios Industriales sells this series backed by more than 80 years in the Argentine industrial market.

The NK series designation is read as follows: the letters NK identify a needle roller bearing without an inner ring; the first number indicates the diameter of the inscribed circle of the needles, which matches the shaft diameter, and the second number, separated by a slash, corresponds to the overall width of the bearing. For example, NK14/20R has a 14 mm shaft diameter and 20 mm width; NK15/16R, 15 mm shaft and 16 mm width; NK16/20R, 16 mm shaft and 20 mm width. The R suffix indicates that the bearing has a flange or rib on the outer ring, which facilitates axial positioning. This nomenclature makes it possible to quickly identify the main dimensions without consulting tables.

In Argentine industry, NK series needle roller bearings are used in transmissions, pumps, compressors, machine tools, mining equipment and automotive applications. They are common in gearboxes, where radial space is critical, and in articulated joints of road machinery. They also appear in conveyor rollers and agricultural equipment. Their ability to carry radial loads with a low profile makes them suitable for shafts rotating at moderate and high speeds. MR Accesorios Industriales sells them for replacement and new projects throughout the country.

To select an NK bearing, check that the shaft has the proper hardness and surface finish, since the raceway is ground directly on it. The shaft tolerance must be compatible with the bearing's internal clearance. Mounting requires precise alignment and proper lubrication: grease or oil depending on speed and operating temperature. Sealing will depend on the environment: in the presence of dust or humidity, external seals are recommended. The needle cage guides the needles and allows high speeds, but it is important to avoid pure axial loads, since the bearing is designed for radial loads.

As for equivalents, NTN NK series needle roller bearings can be interchanged with those of other brands that follow the same dimensional designation, such as SKF, FAG, NSK or KOYO, as long as the shaft diameter, width and flange type match. It is essential to check the suffix, since it indicates features such as the rib. For safe interchangeability, compare dimensions and load capacities. If you have doubts, the technical team at MR Accesorios Industriales can help you identify the equivalent reference.

If you need an NTN NK series needle roller bearing, write to us on WhatsApp with the part number or the dimensions of your application. We will quote promptly and advise you so you choose the right option. MR Accesorios Industriales, with more than 80 years of experience, is at your disposal to meet your bearing and power transmission needs.

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