Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-528143
5311 ZZE Nachi Double Row Angular Contact Ball Bearing 55mm x 120mm x 49mm
5311 ZZE Nachi Double Row Angular Contact Ball Bearing
The 5311 ZZE is a robust double row angular contact ball bearing from Nachi, specifically engineered for high-speed precision applications that require simultaneous radial and axial load capacity. With its durable construction and reliable performance characteristics, this bearing is an excellent choice for demanding industrial equipment requiring sustained durability and consistent operational reliability.
Key Specifications:
- Bore Diameter: 55mm
- Outer Diameter: 120mm
- Width: 49mm
- Row Type: Double row configuration
- Contact Angle: 30°
- Seal Type: Metal covers on both sides (ZZE) for protection against contamination
- Cage Material: Sheet steel cage for reliable ball retention and centring
- Clearance: Normal radial clearance
- Tolerance Class: P0/PN2 / ABEC 1
- Operating Temperature Range: -20°C to +150°C
- Material: Standard bearing steel
- Outer Ring: Without flange or groove
- Arrangement: Standard version configuration
- Manufacturer: Nachi
- Reference Number: 5311ZZE
Key Features:
- Double Row Configuration: Provides enhanced load capacity and increased rigidity for heavy-duty applications
- Contact Angle: 30° design delivers excellent balance between radial and axial load handling
- Sheet Steel Cage: Ensures reliable ball retention and consistent performance in demanding conditions
- Metal Covers: Double-sided protection against dust, dirt, and environmental contaminants
- Wide Temperature Range: Operates reliably from -20°C to +150°C, suitable for both standard and elevated temperature applications
Typical Applications:
This bearing is ideal for high-speed precision applications including gearboxes, electric motors, machine tool spindles, automotive transmissions, and other heavy-duty rotating machinery. The double row configuration and robust construction make it particularly well-suited for applications where combined radial and axial loads are present and environmental protection is necessary. The extended temperature range makes it suitable for both standard industrial environments and applications requiring operation in elevated temperature conditions.
Reference: 5311ZZE
