NTN K3×6×7T2T needle roller cage

NTN K3×6×7T2T belongs to needle roller cage, 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 K3×6×7T2T and any equivalents.

Needle cages in the NTN K series hold and guide the needle rollers inside a bearing, keeping them evenly spaced where radial room is limited. They suit arrangements that must carry high radial loads while staying rigid and compact. MR Industrial Accessories LLC supplies this series and helps maintenance and purchasing teams match the cage to the shaft, housing and lubrication of the application.

A K number tells you the size. After the letter K come three values separated by the × sign: bore diameter first, outside diameter second, width last. So K3×6×7T2T describes a 3 mm bore, a 6 mm outside diameter and a 7 mm width. The T2T ending points to a cage in an engineering material, typically glass-fiber reinforced polyamide, which works at moderate temperatures with oil or grease. Other endings cover different materials or treatments, so it pays to confirm the full number before ordering.

You will find these cages in needle roller bearings, pumps, compressors, machine tools, transmission units and precision mechanisms. They are common in automotive, metalworking, textile and food plants, and in gearbox, camshaft and joint repairs where weight must stay low and rigidity high.

Selection starts with the shaft and housing diameters and the width you have to work with, then the expected radial load. Lubrication matters too: oil or grease with a viscosity matched to speed and temperature. Keep assembly clean and alignment precise to avoid early wear. Where room permits, a cage with more needles carries more load, but stay inside the standard dimensions.

NTN K series cages interchange with cages from other makers that use the same standard dimensions, including SKF, FAG and NSK. What counts is matching bore, outside diameter, width and the suffix type. If you only have another brand's number, send it over and we will point you to the NTN cage that fits your application.

To get a quote, message us on WhatsApp or by email with the exact part number, for example K6×9×8T2T, or with your shaft and housing dimensions. We can also suggest equivalents and advise on assembly and lubrication.