NTN NK24/16R needle roller bearing

NTN NK24/16R 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 NK24/16R and any equivalents.

When a shaft is already hardened and ground, an NTN NK series needle roller bearing can be a practical way to support radial loads in a very small radial envelope. This single-row bearing has no inner ring, so the needles run directly on the shaft. The design keeps the cross-section low while handling significant radial force. MR Industrial Accessories supplies this series to maintenance and production teams across the United States and Latin America.

Reading the NK part number is straightforward. The letters NK indicate a needle roller bearing without an inner ring. The first number is the diameter of the inscribed circle of the needles, which equals the shaft diameter. After the slash, the second number gives the overall width. For instance, NK14/20R fits a 14 mm shaft and is 20 mm wide; NK15/16R uses a 15 mm shaft and is 16 mm wide; NK16/20R takes a 16 mm shaft and is 20 mm wide. The R suffix means the outer ring has a flange or rib, which helps with axial location. This coding lets you identify key dimensions without opening a catalog.

These bearings are common in gearboxes, pumps, compressors, machine tools, mining equipment, and automotive assemblies. They also show up in conveyor rollers, agricultural machinery, and the articulated joints of road equipment. Where radial space is tight and moderate to high speeds are involved, the NK series is often a good fit. Because the bearing is compact, it can simplify housing design and reduce the overall size of the assembly.

Selection starts with the shaft. The raceway must be hardened and ground to the correct surface finish, and the shaft tolerance should match the bearing's internal clearance. Proper alignment during mounting is critical, as is lubrication: grease or oil depending on speed and operating temperature. In dusty or humid environments, external seals are recommended. The needle cage guides the needles and supports high speeds, but the bearing is intended for radial loads, so avoid pure axial loading.

Interchange is possible with other brands that use the same dimensional designation, including SKF, FAG, NSK, and KOYO, provided the shaft diameter, width, and flange type match. Always check the suffix, since it indicates features like the rib. Compare dimensions and load capacities before substituting. If you are unsure, our technical team can help you identify the equivalent reference.

To request a quote, send the part number or your application dimensions via WhatsApp or email. We will respond promptly and help you confirm the right option. MR Industrial Accessories supports your bearing and power transmission needs.