Cone roller needle bearings, also known as narrow needle bearings, consist of an outer ring, inner ring, retainer, and roller needle assembly. They are widely used needle bearings, primarily applied in various types of machinery such as automobiles, machine tools, textile machinery, printing machinery, etc. These bearings can withstand significant radial loads. Available with or without an inner ring, they feature G2 grade roller needles with an average diameter deviation of less than 2um. They utilize high-rigidity retainers to accurately guide the roller needles parallel to the axis.