Bearings
Angular Contact Bearings
Angular Contact Bearings
Quick Code: BB-525333
3311 ANR SKF Angular Contact Ball Bearing 55mm x 120mm x 49.2mm
3311 ANR SKF Angular Contact Ball Bearing
The 3311 ANR is a precision-engineered double row angular contact ball bearing from SKF, designed to handle combined radial and axial loads in demanding industrial applications. This versatile bearing delivers reliable performance in high-speed operations, making it an excellent choice for equipment requiring smooth, dependable operation under challenging conditions.
Design & Functionality
Double row angular contact ball bearings are specifically engineered to accommodate simultaneous radial and axial loads with enhanced load capacity compared to single row designs. The dual row configuration provides superior rigidity and stability, making it ideal for applications requiring precise alignment and stable performance under heavy loading conditions.
Key design features include:
- Double row angular contact configuration with 30-degree contact angle for efficient load distribution
- Standard version arrangement optimized for versatile industrial applications
- Open bearing design (no seals) allowing for flexible lubrication strategies
- Sheet steel cage construction for reliable performance and durability
- Normal radial clearance for standard industrial operating conditions
- Standard bearing steel construction for strength and longevity
- Ring groove with circlip on outer ring for secure mounting and positioning
- Tolerance class P6 / ABEC 3 for reliable engineering applications
- 55mm bore size suitable for medium to large machinery applications
- Extended temperature range from -20°C to +150°C for versatile environmental performance
Specifications
- Manufacturer: SKF
- Reference Number: 3311 ANR
- Bore Diameter: 55mm
- Outer Diameter: 120mm
- Width: 49.2mm
- Type: Double Row Angular Contact
- Contact Angle: 30°
- Seal Type: Open Bearing (None)
- Cage Material: Sheet Steel
- Clearance: Normal Radial Clearance
- Tolerance Class: P6 / ABEC 3
- Temperature Range: -20°C to +150°C
- Outer Ring: Ring groove with circlip
- Material: Standard bearing steel
- Arrangement: Standard version
Applications
The 3311 ANR is ideal for gearboxes, spindles, machine tools, compressors, pumps, and other industrial equipment requiring reliable performance under combined loading conditions. The double row configuration provides exceptional load capacity, making it particularly suitable for heavy-duty machinery, automotive transmissions, and industrial drives where enhanced rigidity and precision alignment are essential.
The open bearing design makes this bearing especially versatile, allowing operators to implement custom lubrication solutions tailored to specific application requirements. The 30-degree contact angle enables efficient handling of both radial and axial forces, while the ring groove with circlip ensures secure positioning in mounting assemblies. This bearing's extended temperature range makes it suitable for demanding environments ranging from cold industrial facilities to high-temperature operational conditions, offering exceptional versatility for diverse industrial applications.
