Needle roller bearing NTN NK10/12T2＋IR7×10×12

NTN NK10/12T2＋IR7×10×12 is a needle roller bearing reference, within Bearings. Request a quote for NK10/12T2＋IR7×10×12 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN NK+IR series needle roller bearing is an assembly made up of an NK-type needle roller bearing and an IR inner ring. It is used when radial space is limited and high load capacity is required. The inner ring allows mounting on shafts without special heat treatment. MR Accesorios Industriales sells this series in Buenos Aires, Argentina, with more than 80 years of experience in bearings and power transmission.

The NK+IR series designation combines two components. The NK code indicates a needle roller bearing without an inner ring, with standardized dimensions. The number that follows, such as 8, 9 or 10, corresponds to the bearing bore diameter (in millimeters). Then a slash and another number appear, for example 12 or 16, which indicates the overall width. The letter T2 indicates a design with a polyamide cage. The +IR suffix identifies the inner ring supplied with the bearing; its dimensions are expressed as IR bore diameter × outside diameter × width, for example IR5×8×12. Thus, NK8/12T2+IR5×8×12 is an NK bearing with an 8 mm bore and 12 mm width, with an inner ring of 5 mm bore, 8 mm outside diameter and 12 mm width.

This series is used in applications where radial space is critical and loads are high. In Argentina, it is common in machine tools, pumps, compressors, electric motors, transmission equipment and agricultural machinery. It also appears in conveyor rollers, cam systems and oscillating mechanisms. The combination with an inner ring makes mounting easier on shafts that are not hardened or ground, which simplifies design and reduces costs. It is a common solution in equipment where high rigidity and rotational precision are required.

To select correctly, take into account the radial load and the operating speed. The IR inner ring must have a bore diameter suitable for the shaft and a width matching that of the bearing. Check the lubrication: these units accept grease or oil, and in high-speed applications oil with circulation is recommended. Sealing will depend on the environment: if there is dust or moisture, consider external seals or bearings with seals. Alignment between shaft and housing is essential to avoid parasitic axial loads. Follow the manufacturer's mounting instructions to ensure service life.

As for equivalents, needle roller bearings with an inner ring from other brands can be interchanged if the main dimensions match: bore diameter, outside diameter and width. The NTN NK+IR series is standard and usually has equivalents in other companies' catalogs. Always check the tolerances and the cage type, as they may vary. If you need to replace an existing bearing, the safest approach is to compare the dimensions and the load conditions. MR Accesorios Industriales can advise you on selecting the right alternative.

If you need a quote for an NTN NK+IR series needle roller bearing, write to us on WhatsApp with the full part number or the dimensions of your application. At MR Accesorios Industriales we quote the exact part number or size you need. We can also point you to the compatible alternative if you bring us another brand's part number or an unidentified part. We are in Buenos Aires, Argentina, and we reply promptly.

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