Bearings
Ball Bearings
SKF Ball Bearings
Quick Code: BB-510074
311-ZNR SKF Deep Groove Ball Bearing with Shield on One Side Only 55mm x 120mm x 29mm



The 311-ZNR SKF Deep Groove Ball Bearing is a high-performance, precision-engineered bearing designed for versatile industrial applications. Manufactured by SKF, the world's leading bearing manufacturer, this single row deep groove ball bearing offers exceptional reliability and durability in demanding mechanical environments.
Key Features:
- Single row deep groove ball bearing design
- Unique shielded configuration on one side only
- Cylindrical bore for flexible mounting options
- Sheet steel cage providing structural integrity
- Standard bearing steel construction for robust performance
- Outer ring with circlip groove for secure positioning
Technical Specifications:
- Inside Diameter: 55mm
- Outside Diameter: 120mm
- Width: 29mm
- Clearance: Normal radial clearance
- Tolerance Class: P0/PN2 / ABEC 1
- Operating Temperature Range: -20°C to +120°C
- Current Insulation: No current insulation
- Sealing: Shielded on one side only
- Cage Material: Sheet steel
- Rolling Element Material: Standard bearing steel
Typical Application Areas:
- Electric motors
- Industrial machinery
- Automotive systems
- Conveyor equipment
- Agricultural machinery
- Pumps and fans
Performance Characteristics:
The one-sided shield provides partial protection against contaminants while allowing for easier lubrication and maintenance. The standard bearing steel construction ensures high load-bearing capacity and consistent performance across various industrial environments. The cylindrical bore offers versatile mounting options, making it suitable for a wide range of applications.
With SKF's renowned engineering and quality control, this deep groove ball bearing provides a reliable solution for demanding mechanical applications, offering durability, precision, and versatility in a robust design.