Bearing 6311 Z ZKL



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Product detailed description
Bearing 6311 Z ZKL: High-Quality Deep Groove Ball Bearing
Bearing 6311 Z ZKL is a precision-engineered deep groove ball bearing designed to provide reliable performance in a wide range of industrial and mechanical applications. Manufactured by ZKL, a trusted name in bearing technology, this bearing is known for its durability, smooth operation, and ability to handle radial loads efficiently.
This particular model, 6311 Z ZKL, features metal shields on both sides, indicated by the "Z Z" designation, which protect the bearing from dust and contaminants while allowing minimal friction for high-speed operations. It is an ideal choice for applications requiring moderate speeds and enhanced protection against external particles.
Key Features and Benefits
- Durability: Made from high-quality steel, the 6311 Z ZKL bearing is built to withstand heavy loads and resist wear over time.
- Shielded Design: The metal shields on both sides prevent ingress of dirt and debris, increasing service life and reducing maintenance needs.
- Versatility: Suitable for various applications including electric motors, pumps, gearboxes, and industrial machinery.
- Low Friction: The shielding design maintains low friction for efficient and smooth rotation at high speeds.
Technical Specifications
- Model: 6311 Z ZKL
- Bearing Type: Deep Groove Ball Bearing
- Shielding: Double metal shields (Z Z)
- Dimensions:
- Inner Diameter (ID): 55 mm
- Outer Diameter (OD): 120 mm
- Width: 29 mm
- Manufacturer: ZKL
Choosing the bearing 6311 Z ZKL ensures efficient operation and longevity in your machinery. Its robust construction and protective shielding make it an excellent investment for maintaining optimal performance in demanding environments.

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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.