Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-508566
5309 NSK Double Row Angular Contact Ball Bearing 45mm x 100mm x 39.7mm
NSK 5309 Double Row Angular Contact Ball Bearing
This robust NSK double row angular contact ball bearing is engineered for high-performance applications requiring simultaneous radial and axial load capacity. With a 45mm bore and 100mm outer diameter, the 39.7mm width provides exceptional load handling in a compact footprint, making it ideal for precision machinery and heavy-duty industrial equipment.
Key Specifications:
- Reference Number: 5309
- Manufacturer: NSK
- Bore Diameter: 45mm
- Outer Diameter: 100mm
- Width: 39.7mm
- Configuration: Double Row
- Contact Angle: 25°
- Seal Type: Open bearing (no seals)
- Cage Material: Steel
- Radial Clearance: Normal
- Tolerance Class: P0/PN2 (ABEC 1)
- Operating Temperature Range: -20°C to +150°C
- Material: Standard bearing steel
- Outer Ring: Without flange/groove
- Arrangement: Standard version
Design Advantages:
The double row angular contact configuration delivers superior performance characteristics:
- Equivalent load capacity to two single row bearings in a more compact axial footprint
- Ability to accommodate axial loads acting in both directions
- Enhanced stiffness for rigid bearing arrangements
- 25-degree contact angle optimized for balanced radial and axial load distribution
- Steel cage construction provides durability and stability under demanding conditions
- Open design ideal for applications with controlled external lubrication systems
- Capability to support tilting moments
Ideal Applications:
This bearing is well-suited for gearboxes, spindles, electric motors, machine tools, pumps, and other heavy-duty equipment where precision, combined load handling, and reliable performance are critical requirements. The open bearing design makes it particularly suitable for applications with dedicated lubrication management systems.
