Raceway Function: Internal rolling path for needle roller elements.
Structural Layout: Stand-alone inner ring for interchangeable bearing layouts.
Surface Integrity: Heat-treated raceway with uniform grinding.
Material Type: Bearing-grade chrome alloy steel.
Dimensional Interface: Dimensions align with the 40 × 45 × 20 mm specification.
Dimensional Category: standard-format
Transparency Note: This inner ring is manufactured under the RICH brand. Dimensional values are provided solely for identification and do not imply affiliation with or endorsement by other manufacturers.