Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-528138
5306 C3 Nachi Double Row Angular Contact Ball Bearing 30mm x 72mm x 30.2mm
5306 C3 Nachi Double Row Angular Contact Ball Bearing
This premium double row angular contact ball bearing from Nachi is engineered to deliver reliable performance in applications requiring simultaneous radial and axial load capacity. The 5306 C3 combines robust construction with precision engineering, making it an excellent choice for industrial machinery and heavy-duty equipment.
Product Overview
As a double row angular contact bearing, the 5306 C3 features strategically angled raceways on both inner and outer rings that enable efficient load distribution in multiple directions. The double row configuration provides enhanced load-carrying capability and exceptional rigidity, while accommodating tilting moments that single row bearings cannot handle.
Key Specifications
- Manufacturer: Nachi
- Reference Number: 5306 C3
- Bore Diameter: 30mm
- Outer Diameter: 72mm
- Width: 30.2mm
- Row Configuration: Double Row
- Contact Angle: 30°
- Cage Material: Sheet steel cage
- Clearance: Slightly increased radial clearance (C3)
- Tolerance Class: P0/PN2 (ABEC 1)
- Operating Temperature Range: -20°C to +150°C
- Seal Type: None, open bearing
- Outer Ring: Without flange/groove
- Material: Standard bearing steel
- Arrangement: Standard version
Key Features
- Double row design for enhanced load capacity and increased stiffness
- 30° contact angle optimized for balanced radial and axial load distribution
- Slightly increased radial clearance (C3) allowing for thermal expansion and accommodating misalignment
- Sheet steel cage construction for durability in demanding applications
- Handles radial and axial loads in both directions
- Extended temperature range up to 150°C for high-heat applications
- Backed by Nachi's reputation for quality and reliability
Applications
The 5306 C3 is well-suited for a wide range of industrial applications including:
- Gearboxes and transmission systems
- Machine tool spindles and precision rotating equipment
- Automotive and industrial motors
- Pump and compressor assemblies
- Heavy-duty equipment requiring bidirectional load support
- Applications with moderate speed and combined load requirements
- Systems requiring tolerance for thermal expansion and minor misalignment
With its robust construction and reliable performance characteristics, the Nachi 5306 C3 is an ideal bearing solution for demanding industrial environments where durability and cost-effectiveness are equally important.

