NTN K38×43×28.8X needle roller cage

NTN K38×43×28.8X 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 K38×43×28.8X and any equivalents.

The NTN K series needle roller cage holds and guides the needles in place, and it works without an inner or outer ring. That makes it a fit for assemblies where radial room is tight but radial load capacity still matters. MR Industrial Accessories LLC supplies this series to maintenance and purchasing teams.

Reading the code is straightforward. The letter K comes first, then three values separated by the multiplication sign: bore diameter, outside diameter and width. Take K16×22×15.8X: 16 mm bore, 22 mm outside diameter, 15.8 mm width. The trailing X marks a version whose dimensions differ from the standard one. Because there are no rings, the shaft and the housing bore serve as the raceways.

Typical applications include transmissions, pumps, compressors, machine tools and mining equipment. The slim cross-section helps keep the assembly small while carrying high radial loads at high speed. If you supply the code from another maker, the team can point you to the matching NTN reference, since cages that share a dimensional designation are interchangeable. Check the tolerances and the X suffix before substituting anything.

Sizing starts with three measurements: shaft diameter, housing bore diameter and the width you have available. Load also has to be considered. Since the shaft and housing act as raceways, their hardness and surface roughness matter as much as the dimensions. Proper lubrication and accurate alignment limit premature wear, and sealing the assembly keeps contaminants out.

To get a quote, send the code or your measurements by WhatsApp or email. The team replies promptly, confirms the correct K series cage and can suggest equivalents or help with the selection.