Bearing 6311 Z ZKL



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Product detailed description
Bearing 6311 Z ZKL: High-Quality and Reliable Performance
The 6311 Z ZKL is a precision-engineered deep groove ball bearing designed to deliver exceptional performance and durability in various industrial and mechanical applications. Manufactured by ZKL, a trusted name in the bearing industry, this model is widely recognized for its robust construction and reliable operation.
This particular bearing features a single metal shield (denoted by the "Z" in its designation), which protects the internal components from contamination while allowing for smooth rotation with minimal friction. The shielding helps to extend the service life of the bearing by preventing dust, dirt, and other particles from entering the raceway, making it suitable for environments where moderate protection is required.
Technical Specifications and Dimensions
The 6311 Z ZKL conforms to international standards for deep groove ball bearings and has the following dimensions:
- Inner Diameter: 55 mm
- Outer Diameter: 120 mm
- Width: 29 mm
These dimensions ensure compatibility with a wide range of machinery and equipment, including electric motors, gearboxes, pumps, and conveyors.
Key Features and Benefits
- Durability: Made from high-quality steel to withstand heavy loads and demanding operating conditions.
- Shielded Design: The metal shield provides effective protection against contaminants while allowing for lubrication retention.
- Low Noise and Vibration: Engineered to minimize noise and vibration, enhancing the overall performance of the machinery.
- Versatile Application: Suitable for use in automotive, industrial machinery, agricultural equipment, and more.
- Easy Installation: Standardized dimensions facilitate straightforward fitting and replacement.
Why Choose 6311 Z ZKL?
Choosing the 6311 Z ZKL means investing in a bearing that combines precision engineering with reliable protection and longevity. Its high-quality materials and design ensure consistent performance under various load conditions, making it an ideal choice for engineers and maintenance professionals seeking dependable bearing solutions.
Whether you need a bearing for routine maintenance or new equipment assembly, the 6311 Z ZKL offers the quality and performance necessary to keep your operations running smoothly.

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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.