NSK RNAFW455534 needle roller bearing

NSK RNAFW455534 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 RNAFW455534 and any equivalents.

The NSK RNAFW series is a radial needle roller bearing manufactured without an inner ring, intended for equipment where radial space is tight and load capacity must remain high. It runs directly on a hardened and ground shaft, which simplifies surrounding components and keeps assembly weight down. Typical applications include transmissions, pumps, compressors and production machinery that runs continuously, where dimensional accuracy and rugged construction matter.

The series code works as a size reference. The digits after the letters give the main dimensions: RNAFW142220 has an outside diameter of 22 mm and a width of 20 mm, and RNAFW203224 has an outside diameter of 32 mm and a width of 24 mm. Reading the code this way lets a maintenance or purchasing team identify the size and confirm a replacement without pulling the part and measuring it. RNAFW bearings are built without an inner ring, with a steel cage and guided needles.

These bearings appear in machine tools, presses, conveyors, water pumps and air compressors, as well as in automotive gearboxes and steering systems and in agricultural machinery, where conditions demand durable components. The compact cross section suits confined spaces and allows housings to be downsized without giving up load capacity.

Selection starts with the shaft: it must be hardened and ground, with surface hardness adequate for the needle loads. Lubrication is critical, and grease or oil can be used; in many cases the bearing is already lubricated from the factory. Confirm alignment between shaft and housing to avoid parasitic axial loads and premature wear. Sealing depends on the environment, so in contaminated areas consider extra protection such as radial shaft seals or covers.

When replacing a needle roller bearing, cross-brand equivalents are common. Each manufacturer uses its own nomenclature, but standardized dimensions allow interchange between bearings with similar characteristics. If you have a code from another brand, send it over and we will identify the equivalent NSK reference. MR Industrial Accessories LLC supplies the NSK brand and can guide you to the right bearing for the application, whether you need one unit or a batch for maintenance.

For an NSK RNAFW series needle roller bearing, send the code or the measurements you need by WhatsApp or email. Our team replies promptly and can suggest equivalents or help you choose the right component for your equipment.