Needle roller cage NTN KMJ15×21×16.8X1SK

NTN KMJ15×21×16.8X1SK is a needle roller cage reference, within Bearings. Request a quote for KMJ15×21×16.8X1SK via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The NTN KMJ series needle cage is a component that holds and guides the needle rollers in position within the bearing, ensuring uniform load distribution and smooth operation. It is used in applications where radial space is limited and high load capacity is required, such as transmissions, electric motors and industrial machinery. MR Accesorios Industriales sells this series in standard sizes for different configurations.

The KMJ series designation is interpreted by its dimensions: the numbers indicate the bore diameter, the outside diameter and the width of the cage, respectively. For example, KMJ15×21×16.8X1SK corresponds to a cage for a bearing with a 15 mm bore, 21 mm outside diameter and 16.8 mm width. The suffix SK indicates a specific design variant within the series. The KMJ‥S series groups similar configurations with slight dimensional or material differences.

These cages are used in needle roller bearings that operate in demanding environments: gearboxes, pumps, compressors, machine tools and power transmission equipment. In Argentine industry, they are common in the maintenance of agricultural, textile and automotive machinery, where robustness and precision are required. Their compact design allows them to be integrated into tight spaces without sacrificing load capacity.

To select the correct cage, take into account the bearing dimensions and the type of lubrication. The cage must be mounted with precise alignment and without forcing, since incorrect installation can affect the service life of the bearing. Check that the sealing of the assembly is compatible with the working environment and that the internal clearance is suitable for the application. Lubrication must be the one specified for the complete bearing.

NTN needle cages can be interchanged with those of other brands that follow the same standard dimensions, as long as the tolerances and the bearing design are respected. When looking for a replacement, it is essential to compare the dimensions and the type of cage, not just the code. If you have doubts, ask us with the original code and we will tell you the compatible equivalent.

To request a quote for your NTN KMJ series needle cage, write to us on WhatsApp with the code or the dimensions you need. At MR Accesorios Industriales we respond shortly and advise you so you can find the right component for your equipment.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.