Лагери 6403 ZKL



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Bearing 6403 ZKL – High-Quality Radial Ball Bearing
The 6403 ZKL is a reliable and durable deep groove ball bearing designed to support radial and axial loads in various mechanical applications. Manufactured by ZKL, a renowned Czech bearing company, this bearing offers excellent performance, smooth operation, and long service life, making it a preferred choice for industrial machinery, electric motors, automotive components, and general engineering equipment.
This bearing features a single-row design with deep grooves on the inner and outer rings, enabling it to accommodate moderate axial loads in both directions along with radial loads. The "Z" designation indicates that the bearing is equipped with a single metal shield on one side, providing protection against dust and dirt while maintaining low friction and efficient rotation.
Key Features of 6403 ZKL
- High-quality materials and precise manufacturing ensure durability and reliability.
- Deep groove ball bearing structure supports combined radial and axial loads.
- Single metal shield (Z) protects against contamination and extends bearing life.
- Low friction design for smooth and efficient operation.
- Widely used in motors, pumps, gearboxes, and various industrial machinery.
Specifications and Dimensions
The 6403 ZKL bearing conforms to international standards for deep groove ball bearings. Based on standard bearing catalogs, the dimensions are:
- Inner diameter (d): 17 mm
- Outer diameter (D): 40 mm
- Width (B): 12 mm
These compact dimensions make the 6403 ZKL suitable for applications where space is limited but reliable performance is essential.
Applications
The versatility and robust design of the 6403 ZKL make it ideal for a wide range of uses, including:
- Electric motors and generators
- Pumps and compressors
- Conveyor systems and material handling equipment
- Automotive components and transmissions
- Industrial machinery and machine tools
By choosing the 6403 ZKL, you ensure your equipment operates smoothly, with reduced maintenance needs and increased operational efficiency.

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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.