Bearing 6311 ZKL



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Product detailed description
Bearing 6311 ZKL – High-Quality Radial Ball Bearing for Industrial Applications
The 6311 ZKL is a robust and reliable deep groove ball bearing designed to deliver exceptional performance in various mechanical and industrial applications. Manufactured by ZKL, a trusted name in bearing technology, this bearing ensures smooth rotation, reduced friction, and extended service life, making it an ideal choice for machinery, automotive components, and heavy-duty equipment.
Engineered with precision, the 6311 ZKL incorporates high-grade steel and advanced sealing technology to protect against contaminants and maintain optimal lubrication. This bearing is suitable for radial loads and moderate axial loads in both directions, providing versatile functionality across multiple sectors.
Key Features and Benefits
- Durable Construction: Made from premium quality steel to withstand high stress and harsh operating conditions.
- Efficient Sealing: The “Z” designation indicates a metal shield on one side, offering protection against dirt and debris while maintaining low friction.
- High-Speed Capability: Designed to operate efficiently at elevated speeds, reducing energy consumption and heat generation.
- Low Maintenance: The reliable design minimizes the need for frequent servicing, contributing to lower operational costs.
- Versatile Application: Suitable for electric motors, gearboxes, pumps, and various rotating equipment.
Standard Dimensions
The 6311 ZKL follows international bearing standards with the following dimensions:
- Inner Diameter (d): 55 mm
- Outer Diameter (D): 120 mm
- Width (B): 29 mm
These dimensions make the 6311 ZKL compatible with a wide range of housings and shafts, simplifying installation and replacement tasks.
Applications
The versatility and durability of the 6311 ZKL make it suitable for numerous applications, including:
- Industrial machinery and conveyor systems
- Electric motors and generators
- Pumps and compressors
- Agricultural equipment
- Automotive and transportation components
Choosing the 6311 ZKL ensures reliable operation, reduced downtime, and enhanced efficiency for your mechanical systems.

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ZKL Bearings and Transmission Technology Manufacturer
ZKL is a renowned manufacturer specializing in the production of high-quality bearings and advanced transmission technology solutions. With a rich history and commitment to innovation, ZKL has established itself as a key player in the global bearing industry.
Company History
Founded in 1947, ZKL has grown from a small manufacturer into one of the leading European producers of rolling bearings. Over the decades, the company has continuously invested in modern production technologies and research & development to maintain its competitive edge and deliver superior products to various industries worldwide.
Product Range
ZKL offers a comprehensive range of bearing products and transmission components designed for durability, precision, and high performance:
- Deep Groove Ball Bearings – versatile bearings suitable for various applications.
- Roller Bearings – including cylindrical roller bearings and spherical roller bearings for heavy load capacity.
- Needle Roller Bearings – optimized for space-constrained applications requiring high load capacity.
- Special Bearings and Customized Solutions – tailored bearings designed to meet unique industry requirements.
- Transmission Components – precision parts used in a variety of mechanical transmission systems.
Main Focus and Technologies
ZKL focuses on delivering reliable and innovative bearing solutions that cater to demanding operational conditions. The company emphasizes:
- Material excellence and cutting-edge manufacturing processes to ensure product longevity.
- Advanced heat treatment and sealing technologies for enhanced bearing performance.
- Customization and flexibility to accommodate specific customer needs across different sectors.
Application Areas
ZKL bearings and transmission products are widely used in a diverse range of industries, including:
- Automotive and transportation
- Industrial machinery and equipment
- Energy sector, including wind turbines and power plants
- Engineering and manufacturing processes
- Railway and aerospace technologies
Company Headquarters
ZKL is headquartered in Plzeň, Czech Republic. From this strategic location, the company serves a broad international market, combining traditional European manufacturing quality with modern technological standards to meet the evolving needs of its customers.