B30-120 C3 RICH Single Row Deep Groove Alternator Ball Bearing – 30 × 80 × 21 mm
OE Reference: 90363-30014 TOYOTA
The B30-120 C3 RICH is a single row deep groove ball bearing with a 30 × 80 × 21 mm dimensional format. It includes a snap ring groove on the outer ring and a C3 radial internal clearance classification associated with temperature-related dimensional variation in high-speed auxiliary systems.
Technical Specifications:
- Brand: RICH
- Type: Single row deep groove ball bearing
- Model: B30-120 C3 RICH
- Inner Diameter (d): 30 mm
- Outer Diameter (D): 80 mm
- Width (B): 21 mm
- Internal Clearance: C3
- Cage Material: Steel
- Outer Ring Feature: Snap ring groove
- Sealing: Open (None)
- Weight: 0.511 kg
- Country of Origin: China
Performance Characteristics:
- Load Profile: Radial load arrangement with allowance for axial forces in both directions
- Thermal Classification: C3 clearance associated with thermal expansion behavior during high-speed rotation
- Retention Layout: Outer ring groove configuration for axial location within the housing
- Material Type: High‑carbon chrome bearing steel
- Application Interface: Associated with Toyota alternator and automotive auxiliary assembly interfaces
Transparency Note: This bearing is manufactured under the RICH brand. Any OE or interchangeable references are used solely for identification and do not imply affiliation with other manufacturers.
