INA RNA6911-ZW-XL needle roller bearing

INA RNA6911-ZW-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 RNA6911-ZW-XL and any equivalents.

The INA RNA-ZW-XL line covers single-row needle roller bearings that use a machined outer ring and come without an inner ring. Running directly on a hardened and ground shaft, the shaft itself serves as the raceway, so the surrounding assembly stays compact and light. Gearboxes, pumps and machine tools are common homes for these bearings, where room is limited but radial loads are not. MR Industrial Accessories supplies this INA series and helps buyers match the right part number to the job.

Reading the code takes a moment. RNA means the bearing has no inner ring. ZW signals two rows of needles, which raises radial load capacity. XL follows INA naming for the longer-life version. The figure in the middle, as in RNA69/32-ZW-XL or RNA6907-ZW-XL, sets the size and main dimensions. Once that logic is clear, each variant's main traits are easy to spot.

On the plant floor these bearings turn up in gearboxes, gear pumps, compressors, machine tools and power transmission equipment. Metalworking, food, textile and automotive operations use them as well. Where a shaft is small in diameter and a conventional bearing will not fit, the needle design still carries high radial loads. Conveyor rollers, pulleys and cam systems are typical installation points.

Selection starts with the shaft, which must act as the raceway and is normally hardened and ground; its hardness and roughness matter. Shaft-to-housing alignment deserves attention because needles do not tolerate misalignment well. Grease or oil of the right type, plus sealing against contaminants, keeps the bearing working. Internal radial clearance has to suit the application. During mounting, avoid impacts that could mark the needles, and confirm the outer ring sits fully seated.

Interchangeability needs care. Needle roller bearings from different makers can vary in dimensions and capacity, and similar-looking codes do not always swap. Check the critical dimensions and the operating conditions before substituting. When replacing a bearing, contact MR to confirm compatibility. The INA RNA-ZW-XL series is a solid reference point, and comparable options from other brands may also fit.

For a quote on INA RNA-ZW-XL needle roller bearings, send the full part number to the MR team by WhatsApp or email. If the number is not at hand, describe the application and we will help identify the right variant and suggest equivalents.