NTN K50×55×13.5T needle roller cage

NTN K50×55×13.5T 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 K50×55×13.5T and any equivalents.

The NTN K series needle cage holds and guides the needles in a needle roller bearing that has no inner or outer ring. The shaft and housing serve as the raceways. MR Industrial Accessories LLC supplies this component to customers throughout the United States and Latin America.

The part number follows a clear pattern: K, then bore diameter, outer diameter and width, with a T appended when a variant applies. For instance, K16×20×10T describes a cage with a 16 mm bore, 20 mm outer diameter and 10 mm width. A K‥T2 version may also be listed for certain arrangements. Reading the code this way lets you match the cage to your shaft and housing without confusion.

These cages suit assemblies where radial space is tight but load capacity still matters. You will find them in machine tools, pumps, compressors, electric motors, transmission equipment, agricultural machinery, conveyor rollers and lifting systems. They mount directly on shafts that are hardened and ground, and the housing must meet the same requirements for hardness and surface finish.

When choosing a K cage, confirm that the shaft and housing diameters correspond to the cage dimensions. The shaft needs adequate surface hardness and controlled roughness; the housing requires similar conditions. Proper lubrication is essential to avoid early wear. During installation, keep the components aligned and avoid knocks that could distort the cage. If the unit lacks its own seal, adding radial shaft seals will help protect the raceways.

NTN K series needle cages can be replaced by equivalent cages from other manufacturers that use the same dimensional designation, including SKF, FAG or NSK, provided the dimensions and cage type match. Interchangeability generally depends on bore diameter, outer diameter, width and the tolerances of the assembly. If a part is not identified, send a photo or the dimensions to MR via WhatsApp and we will identify the equivalent.

MR Industrial Accessories LLC supplies NTN K series needle cages. To request a quote, send the part number or dimensions through WhatsApp or email. Our team replies promptly and can also advise on installation and the appropriate lubrication for your application.