Structural Layout: Precision-ground inner ring designed to provide a hardened raceway for needle roller bearings.
Internal Geometry: Optimized surface finish to reduce friction and extend the service life of the rolling elements.
Material Type: High‑carbon chrome bearing steel, hardened and tempered for maximum durability.
Dimensional Format: 15 × 18 × 16.5 mm configuration.
Transparency Note: This bearing is manufactured under the RICH brand. Any OE or interchangeable references, if present, are provided solely for identification and do not imply affiliation with other manufacturers.