Bearing 6311 2Z ZKL



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Product detailed description
Bearing 6311 2Z ZKL
The 6311 2Z ZKL is a high-quality deep groove ball bearing designed for reliable performance in a wide range of industrial and mechanical applications. Manufactured by ZKL, a well-respected name in the bearing industry, this model ensures durability, precision, and smooth operation under various load conditions.
This bearing features metal shields on both sides, denoted by the "2Z" designation, which protect the internal components from dust and other contaminants while allowing for moderate speeds. The robust construction and premium materials make it an excellent choice for applications requiring long service life and minimal maintenance.
Key Features and Benefits
- Shielded on both sides (2Z) to prevent ingress of dust and debris
- High-quality steel construction for enhanced durability and wear resistance
- Suitable for radial and axial loads in both directions
- Low friction design ensures efficient operation and reduced energy consumption
- Compatible with various industrial machines, automotive components, and electric motors
Dimensions and Specifications
The 6311 2Z ZKL bearing conforms to standard dimensions for the 6311 series deep groove ball bearings:
- Inner Diameter (ID): 55 mm
- Outer Diameter (OD): 120 mm
- Width: 29 mm
These dimensions ensure interchangeability with bearings of similar specifications and facilitate straightforward replacement and maintenance.
Applications
Thanks to its robust design and shielding, the 6311 2Z ZKL is widely used in:
- Electric motors and generators
- Pumps and compressors
- Gearboxes and transmission systems
- Conveyor systems and industrial machinery
- Automotive and agricultural equipment
Whether you require reliable performance in heavy-duty industrial settings or smooth operation in precision equipment, the 6311 2Z ZKL bearing is a dependable solution that meets international quality standards.

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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.