Bearing 6311 ZKL



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Product detailed description
Bearing 6311 ZKL: High-Quality and Reliable Performance
Bearing 6311 ZKL is a robust and precision-engineered deep groove ball bearing designed for a wide range of industrial applications. Manufactured by ZKL, a trusted name in the bearing industry, this model ensures exceptional durability, smooth operation, and long service life, making it an ideal choice for machinery requiring reliable rotational movement.
The 6311 ZKL bearing features a single-row deep groove design, which allows it to accommodate radial and axial loads in both directions. Its sealed construction with a metal shield (denoted by the "Z" suffix) offers effective protection against contamination, enhancing its performance in demanding environments.
Key Features and Benefits
- Durability: Crafted from high-quality steel, bearing 6311 ZKL withstands heavy loads and harsh operating conditions.
- Sealed Protection: The metal shield (Z) protects the internal components from dirt and debris, reducing maintenance needs.
- Versatility: Suitable for electric motors, pumps, gearboxes, and other rotating equipment.
- Low Noise and Vibration: Precision manufacturing ensures quiet and smooth operation.
- Easy Installation: Standardized dimensions facilitate compatibility with a variety of housings and shafts.
Dimensions and Specifications
The bearing 6311 ZKL has the following dimensions, adhering to international standards:
- Inner Diameter (d): 55 mm
- Outer Diameter (D): 120 mm
- Width (B): 29 mm
These dimensions make it suitable for medium to heavy-duty applications, providing a balance between load capacity and compact design.
Applications of Bearing 6311 ZKL
Thanks to its design and construction, this bearing is widely used in various industries, including:
- Electric motors and generators
- Pumps and compressors
- Conveyor systems
- Industrial gearboxes
- Agricultural machinery
Choosing bearing 6311 ZKL guarantees reliability and efficiency, reducing downtime and maintenance costs in your machinery.

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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.