NTN NK165/32＋IR150×165×32 needle roller bearing

NTN NK165/32＋IR150×165×32 belongs to needle roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for NK165/32＋IR150×165×32 and any equivalents.

The NTN NK+IR series pairs a needle roller bearing with a separate inner ring. This design suits tight radial spaces where high radial loads and rigidity are required. Typical uses include gearboxes, pumps, compressors and machine tools. MR Industrial Accessories supplies this series and provides quotes by WhatsApp or email using the exact part number.

The code breaks down into two parts: NK denotes the needle roller bearing without an inner ring, and IR indicates the inner ring that comes with it. For the NK portion, the numbers give outer diameter and width. For the IR portion, they give the inner ring's bore, outer diameter and width. For instance, NK12/12＋IR9×12×12 means a 12 mm outer diameter and 12 mm width for the bearing, plus an inner ring with 9 mm bore, 12 mm outer diameter and 12 mm width. Similarly, NK120/40＋IR110×120×40 combines an NK120/40 bearing with an IR110×120×40 inner ring.

These bearings appear in demanding settings such as automotive, machine tools, mining, cement and food plants. They are common in reduction gearboxes, gear pumps, air compressors and milling spindles. Their ability to handle high radial loads in confined spaces makes them suitable for compact transmissions and oscillating mechanisms.

When selecting an NK+IR, consider radial load, speed and internal clearance. Installation requires aligning the inner ring with the outer ring and applying the right lubricant, whether grease or oil. Sealing depends on the environment; add extra protection where dust or moisture is present. Shaft and housing tolerances affect operating clearance, so check specifications before mounting.

NTN NK+IR bearings can be interchanged with other brands that use the same dimensional nomenclature. If you have a part number from another maker, we can identify a match. Interchangeability depends on dimensions and load capacity, not on the exact part number. Send us the part number or measurements and we will suggest a compatible option.

MR Industrial Accessories supplies the NTN NK+IR series. For a quote, message us on WhatsApp with the part number. We can also advise on lubrication and mounting for your specific application.