... chrome steel Gcr15 3. low noise 4. high precision Compound needle roller bearing / one way clutch bearings Yantai runlong is ... variety of sizes, which are appropriate for different applications. StructureNeedle roller bearingSeriesK, NA, NKI, RNA, NK,etcCageChrome steel, carbon ... the requirementDetailsWe have complete process for the production and quality assurance to make sure our products can meet ...