Bearing NU 306 ZKL



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Product detailed description
Bearing NU 306 ZKL: High-Quality Cylindrical Roller Bearing
The NU 306 ZKL is a premium cylindrical roller bearing designed for demanding industrial applications. Manufactured by ZKL, a renowned leader in bearing technology, this bearing offers exceptional reliability, durability, and performance under heavy radial loads and high-speed conditions.
This bearing is part of the NU series, characterized by its specific design that allows axial displacement of the shaft relative to the housing, making it ideal for applications where thermal expansion or shaft deflection occurs. The "306" designation indicates its size and load capacity within the series, ensuring compatibility with a wide variety of machinery and equipment.
Key Features of NU 306 ZKL
- Design: Single-row cylindrical roller bearing with two integral ribs on the outer ring and no ribs on the inner ring, allowing axial displacement.
- Load Capacity: Optimized for high radial loads and moderate speeds.
- Material: High-quality bearing steel for superior wear resistance and long service life.
- Sealing: Typically open design, allowing for custom lubrication depending on application requirements.
- Precision: Manufactured to meet international standards ensuring consistent performance and interchangeability.
Applications
The NU 306 ZKL bearing is widely used in various industrial sectors including:
- Electric motors and generators
- Pumps and compressors
- Machine tools and textile machinery
- Conveyors and gearboxes
- Automotive and heavy machinery components
Dimensions
This particular bearing model, NU 306, typically has the following dimensions according to standard bearing catalogs:
- Inner Diameter (d): 30 mm
- Outer Diameter (D): 72 mm
- Width (B): 19 mm
These dimensions make the NU 306 ZKL suitable for medium-sized mechanical assemblies requiring robust radial load support.
Choosing the NU 306 ZKL ensures optimal performance and longevity in your machinery, backed by ZKL’s commitment to quality and innovation in bearing technology.

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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.