NTN RNA5902CT needle roller bearing

NTN RNA5902CT 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 RNA5902CT and any equivalents.

The NTN RNA series is a needle roller bearing designed to carry high radial loads while taking up very little space. Because it has no inner ring, the needles run directly on the shaft journal, so the shaft itself must be hardened and ground to serve as the raceway. This makes the bearing a good fit for compact assemblies where the shaft diameter is limited and rigidity matters.

Reading the part number helps you choose correctly. The letters RNA mean a needle roller bearing without an inner ring. The numbers that follow set the outer diameter and width, so RNA498CT and RNA5902CT fall into the RNA49 and RNA59 series. The CT suffix tells you the cage is stamped steel, which guides the needles and supports high speeds.

You will find these bearings in automotive, machine tool, power transmission, pump, compressor and agricultural machinery applications. They are common in gearboxes, camshafts, conveyor rollers and lifting systems, where high radial loads must be handled in tight spaces.

Selection depends on the shaft raceway, since it acts as the inner ring. Check its hardness and roughness, and make sure lubrication is right: oil or high-viscosity grease according to speed and temperature. Mounting calls for precise alignment and clean conditions to keep contamination out. Also review internal clearance and sealing; this series has no seals, so external radial shaft seals can be added. Poor mounting shortens service life.

For equivalents, needle roller bearings without an inner ring follow international standards for dimensions and tolerances. Other brands offer similar series, but compare load capacity and cage type as well as the part number. When replacing, verify shaft and housing dimensions. If anything is unclear, the MR team can help.

To request a quote for NTN RNA series needle roller bearings, send the part number or dimensions on WhatsApp. MR Industrial Accessories replies promptly with the information you need. You can also ask about other series or equivalent brands.