Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-520493
5309 SC3 NTN Double Row Angular Contact Ball Bearing 45mm x 100mm x 39.7mm
5309 SC3 NTN Double Row Angular Contact Ball Bearing
This reliable double row angular contact ball bearing from NTN is engineered to handle combined radial and axial loads simultaneously, making it ideal for high-speed precision applications requiring robust performance. With a bore diameter of 45mm and outer diameter of 100mm, this bearing delivers excellent load capacity and rigidity, making it particularly suitable for demanding industrial and mechanical equipment where enhanced stability is essential.
Key Specifications:
- Bore diameter: 45mm
- Outside diameter: 100mm
- Width: 39.7mm
- Row type: Double row
- Contact angle: 25°
- Cage material: Sheet steel
- Sealing: Open bearing (no seal)
- Clearance: Slightly increased radial clearance
- Tolerance class: P0/PN2 (ABEC 1)
- Operating temperature range: -20°C to +150°C
Design & Features:
- 25° contact angle optimised for balanced radial and axial load distribution
- Double row configuration provides significantly enhanced load capacity and rigidity compared to single row bearings
- Sheet steel cage construction ensures stability and durability during high-speed operation
- Standard bearing steel material manufactured to NTN quality standards
- Slightly increased radial clearance allows for reliable performance in demanding applications
- Open bearing design enables easy lubrication and maintenance access
- Without flange or groove for straightforward installation
- NTN engineering quality delivers consistent precision and reliability
Typical Applications:
This bearing is well-suited for medium to large-sized machinery including gearboxes, spindle assemblies, electric motors, pumps, compressors, and various industrial rotating equipment where combined radial and axial loads are present. The double row configuration and slightly increased clearance characteristics make it particularly valuable for heavy-duty applications requiring improved load distribution, enhanced rigidity, and reliable performance in demanding operating environments.
Reference: 5309SC3-NTN
