INA RNA4864-XL needle roller bearing

INA RNA4864-XL 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 RNA4864-XL and any equivalents.

The INA RNA-XL series is a radial needle roller bearing that operates without an inner ring. It mounts directly on a hardened and ground shaft, which keeps the cross-section very small and saves weight where space is limited. You will find it in transmissions, pumps, compressors and continuous production equipment.

The part number tells you what you are holding. RNA means a needle roller bearing with no inner ring, using a cage to guide the needles. The digits after the slash, as in RNA49/22-XL or RNA69/28-XL, set the size and dimension series: 49 is one section series, 69 is another with different proportions, and 48 is an even more compact series. The -XL suffix marks the manufacturer's current design, with updates in design and materials. Reading the code this way helps you match the bearing to the space and the radial load.

These bearings appear in gearboxes, water and oil pumps, air compressors, machine tools, packaging and conveying equipment, and food industry machinery. Automotive uses include gearboxes and clutch systems, and agricultural machinery relies on them where robustness and radial load capacity matter. The compact design fits where a larger bearing will not go.

Selection starts with the radial load, the rotational speed and the operating environment. Because there is no inner ring, the shaft itself is the raceway and must be hardened and ground to suitable hardness and roughness. Check alignment between shaft and housing carefully, since these bearings are sensitive to misalignment. Grease or oil lubrication both work depending on the application, and sealing the assembly keeps contamination out. During mounting, avoid impacts that could damage the needles or the cage.

Equivalents from other manufacturers exist, but dimensions and load capacities can differ between brands. Verify interchangeability against the technical tables before substituting. INA is a reference brand for this type of bearing and is part of the MR Industrial Accessories bearing line. For a replacement, identify the complete part number and confirm it with a specialist.

To request a quote, send the full part number via WhatsApp or email. If you cannot find the exact reference, share the model or the shaft and housing dimensions and we will help you identify the right variant.