... Assemblies K, K-D, K-ZW, K-ZWD Needle Roller Bearings and Cage AssembliesIt is a kind of independent bearing unit with ... , BHA, SCH, F SeriesNeedle Roller and Cage Assemblies: K, K-ZW, K-D, K-ZWD SeriesHeavy Duty Needle Roller Bearings: NK, NKS, RNA 49 ...