Bearing NU 306 B P63 NA ZKL



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Product detailed description
bearing NU 306 B P63 NA ZKL – High-Performance Cylindrical Roller Bearing
The bearing NU 306 B P63 NA ZKL is a precision-engineered cylindrical roller bearing designed to deliver exceptional performance in demanding industrial applications. Manufactured by ZKL, a reputable leader in bearing technology, this model offers superior load capacity, durability, and reliability, making it an ideal choice for heavy machinery and equipment.
This bearing features an open design with cylindrical rollers that allow for high radial load support while accommodating axial displacement. The "NU" designation indicates that the bearing has two fixed ribs on the outer ring and no ribs on the inner ring, enabling the inner ring to move axially relative to the outer ring. This design is particularly beneficial in applications where thermal expansion or shaft deflection is present.
Key features of the bearing NU 306 B P63 NA ZKL include:
- Dimensions: The bearing has a bore diameter of 30 mm, an outer diameter of 72 mm, and a width of 19 mm, ensuring compatibility with a wide range of mechanical systems.
- Precision Rating: The P63 tolerance class guarantees enhanced dimensional and running accuracy compared to standard bearings, resulting in reduced vibration and noise.
- Material Quality: Made from high-grade bearing steel, the NU 306 B P63 NA ZKL offers excellent resistance to wear, corrosion, and fatigue.
- Design Advantages: The bearing's ability to accommodate axial displacement allows it to handle shaft misalignments and thermal expansions effectively, thereby extending the service life of the machinery.
- Sealing and Lubrication: The "NA" suffix indicates an absence of seals, making the bearing suitable for applications where external lubrication is regularly applied, or where minimal friction is essential.
Applications for the NU 306 B P63 NA ZKL bearing span various industries, including automotive, electric motors, gearboxes, machine tools, and heavy machinery. Its robust construction and precise engineering make it a reliable component for systems requiring high radial load capacity and moderate speeds.
When selecting the bearing NU 306 B P63 NA ZKL, users benefit from a product that combines ZKL's expertise with the latest manufacturing standards, ensuring optimal performance and longevity in critical operational 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.