Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-528140
5308 C3 Nachi Double Row Angular Contact Ball Bearing 40mm x 90mm x 36.5mm
The 5308 C3 Nachi Double Row Angular Contact Ball Bearing is a precision bearing engineered to handle simultaneous radial and axial loads in both directions. As a product from Nachi, a trusted bearing manufacturer, this bearing delivers reliable performance for demanding industrial applications.
Design & Functionality
Double row angular contact ball bearings feature strategically displaced raceways in the inner and outer rings, allowing them to accommodate radial and axial loads acting in both directions. This configuration provides enhanced load capacity, rigidity, and excellent resistance to tilting moments compared to single row designs.
Key design features include:
- Double row configuration for superior load capacity and bearing rigidity
- 30° contact angle for optimal load distribution and performance
- Bi-directional axial load capability
- Sheet steel cage construction for durability and stability
- Slightly increased radial clearance (C3) for enhanced operational flexibility
- Standard bearing steel construction with P0/PN2 tolerance class (ABEC 1)
- Open bearing design without seals
Specifications
- Manufacturer: Nachi
- Reference Number: 5308 C3
- Bore Diameter: 40mm
- Outer Diameter: 90mm
- Width: 36.5mm
- Type: Double Row Angular Contact
- Contact Angle: 30°
- Cage Material: Sheet steel
- Clearance: Slightly increased radial clearance (C3)
- Temperature Range: -20°C to +150°C
- Arrangement: Standard version, open bearing (no seal)
Applications
Ideal for gearboxes, machine tool spindles, automotive assemblies, pumps, compressors, and other heavy-duty industrial equipment requiring precision performance under combined loading conditions. The double row design with C3 clearance makes it particularly suitable for applications requiring flexibility and resilience in varying operational conditions.

