NTN KV63×71×50.3XZWS needle roller cage

NTN KV63×71×50.3XZWS 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 KV63×71×50.3XZWS and any equivalents.

Needle cages in the NTN KV series hold and guide the needle rollers inside a bearing assembly, making it possible to build a needle roller bearing without an inner ring. That layout suits applications where radial room is tight but radial load capacity still matters. MR Industrial Accessories LLC supplies this series to industrial buyers in the United States and Latin America.

The part number carries the size information. After the KV prefix come three values separated by the multiplication sign: needle diameter, outer diameter and width. Take KV43×48×37.8XZWS as an example: needles of 43 mm, an outer diameter of 48 mm and a width of 37.8 mm. The XZWS ending points to design characteristics within the series, covering items such as cage style and sealing. The K series follows the same way of reading a reference.

Typical users include automotive production, machine tool building, transmission equipment and linear motion systems. In practice, these cages turn up in gearboxes, pumps, compressors and guidance units. Because the cross section is small, they fit into places where a full bearing would not go, while still carrying radial loads.

When you pick a cage, work from the shaft diameter together with the load and the running speed. Correct alignment and sufficient lubrication are needed at installation, and the sealing of the assembly keeps contaminants out. The cage has to sit centered, with the radial clearance called for, so that wear does not start early.

Cages from other makers that use the same dimensional nomenclature can be used in place of the NTN KV series. Check tolerances and cage type before you swap one for another. If you only have a competitor's part number, our team can point you to the matching equivalent.

To get a quote, send the part number or the dimensions through WhatsApp or email. MR Industrial Accessories LLC answers promptly and can also suggest equivalents or help you choose the right cage.