K25x31x21 RICH – Needle Roller and Cage Assembly – 25 × 31 × 21 mm
Technical Specifications:
Type: Needle roller and cage assembly
Brand: RICH
Model Designation: K25x31x21 RICH
Inner Diameter (d): 25 mm
Outer Diameter (D): 31 mm
Width (B): 21 mm
Size Category: Medium
Cage Material: Steel
Rolling Elements: Needle rollers
Country of Origin: China
Performance Characteristics:
Rolling elements configured as needle rollers guided by a steel cage.
Compact radial cross‑section suitable for constrained housings.
Dimensional format compatible with standardized bearing layouts.
Radial load transmission through parallel needle rollers.
Uniform roller spacing maintained by the cage structure.
Dimensional format: 25 × 31 × 21 mm.
Transparency Note: This product is manufactured under the RICH brand.
Dimensional values are provided solely for identification and do not imply
affiliation with or endorsement by other manufacturers.