Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-528142
5311 C3 Nachi Double Row Angular Contact Ball Bearing 55mm x 120mm x 49mm
5311 C3 Nachi Double Row Angular Contact Ball Bearing
This premium Nachi double row angular contact ball bearing is engineered to deliver exceptional performance in applications requiring simultaneous radial and axial loads in both directions. The 5311 C3 combines Nachi's precision manufacturing expertise with a robust double row design, making it ideal for demanding industrial equipment where reliability and load capacity are essential. The medium bore size of 55mm makes it suitable for a wide range of industrial machinery applications.
Product Specifications:
- Bore Diameter: 55mm
- Outer Diameter: 120mm
- Width: 49mm
- Type: Double Row Angular Contact
- Manufacturer: Nachi
- Reference Number: 5311 C3
Key Features:
- 30° contact angle for optimised load distribution across both radial and axial directions
- Double row configuration providing superior axial rigidity and bidirectional load capacity
- Slightly increased radial clearance (C3) for improved operating flexibility and thermal expansion accommodation
- Open bearing design (no seal) for applications with external lubrication management
- Sheet steel cage construction for durability and consistent performance
- Standard bearing steel construction for reliable long-term operation
- Tolerance class P0/PN2 (ABEC 1) for industrial applications
- Operating temperature range: -20°C to +150°C
- Non-flanged outer ring design for flexible installation options
Applications:
The 5311 C3 is perfectly suited for use in industrial gearboxes, spindles, electric motors, machine tools, compressors, pumps, and other precision rotating equipment where combined bidirectional loading conditions are present. The 55mm bore size makes it particularly suitable for medium-sized machinery while maintaining excellent load capacity for demanding industrial operations. The slightly increased radial clearance is especially beneficial in applications subject to temperature fluctuations or where thermal expansion compensation is required.
Nachi's reputation for manufacturing excellence ensures consistent quality, precision performance, and extended service life in challenging operating environments.
