Bearing 6303 ZC3 ZKL



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Product detailed description
Bearing 6303 ZC3 ZKL – High-Quality Radial Ball Bearing
The bearing 6303 ZC3 ZKL is a precision-engineered radial ball bearing designed for reliable performance in various industrial and mechanical applications. Manufactured by ZKL, a trusted name in the bearing industry, this model offers exceptional durability and smooth operation, making it an ideal choice for both standard and demanding environments.
This bearing features a robust steel construction with enhanced corrosion resistance, ensuring long service life even under challenging conditions. The “ZC3” designation indicates that it is equipped with a single metal shield on one side, providing effective protection against dirt and debris while maintaining low friction. The open side allows for easy lubrication, optimizing maintenance and performance.
Key Features and Benefits
- Durable Construction: Made from high-quality steel for strength and longevity.
- Shielded Design: Single metal shield (ZC3) protects against contaminants while allowing lubrication.
- Low Friction: Precision balls and smooth raceways reduce operational resistance and heat generation.
- Versatile Use: Suitable for electric motors, automotive applications, agricultural machinery, and more.
- Reliable Performance: Ensures consistent rotational accuracy and load handling capacity.
Technical Specifications
The bearing 6303 ZC3 ZKL has the following dimensions:
- Inner Diameter (ID): 17 mm
- Outer Diameter (OD): 47 mm
- Width: 14 mm
These dimensions make the 6303 ZC3 ZKL suitable for a wide range of mechanical assemblies where space and performance requirements are critical.
Applications of Bearing 6303 ZC3 ZKL
This bearing is widely used in various industries due to its reliability and robust design. Typical applications include:
- Electric motors and generators
- Automotive components such as wheel hubs and transmissions
- Agricultural and construction machinery
- Industrial gearboxes and pumps
- Conveyor systems and material handling equipment
Choosing the bearing 6303 ZC3 ZKL ensures optimal performance, reduced downtime, and enhanced durability in your mechanical systems.

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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.