Bearing NU 320 P6 NA ZKL



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Product detailed description
bearing NU 320 P6 NA ZKL – High Precision and Durability
Bearing NU 320 P6 NA ZKL is a premium cylindrical roller bearing designed for high-performance applications requiring exceptional reliability and precision. Manufactured by ZKL, this bearing delivers superior quality and is engineered to meet stringent industrial standards. It is ideal for use in heavy machinery, electric motors, gearboxes, and other equipment where durability and accurate rotation are paramount.
This bearing features a cylindrical roller design that ensures excellent radial load capacity and low friction operation, contributing to extended service life and efficient performance. The "P6" designation indicates an enhanced precision class, making it suitable for applications demanding tighter tolerances and smoother operation compared to standard bearings.
- Type: Cylindrical roller bearing
- Series: NU 320
- Precision class: P6 (enhanced accuracy)
- Internal design: NA (without ribs on the inner ring)
- Sealing: Z (single metal shield on one side)
- Manufacturer: ZKL
The NU 320 P6 NA ZKL bearing dimensions are precisely standardized to ensure compatibility and ease of replacement:
- Inner diameter (bore): 160 mm
- Outer diameter: 240 mm
- Width: 46 mm
Constructed with high-quality steel and advanced manufacturing processes, the bearing withstands heavy radial loads and moderate axial displacement. The metal shield (Z) protects the internal components from contamination while allowing minimal friction, making it suitable for environments where some protection is required but full sealing is not necessary.
Choosing the bearing NU 320 P6 NA ZKL ensures enhanced machine performance, reduced downtime, and long-term operational efficiency. Whether you are maintaining industrial equipment or designing new machinery, this bearing offers a reliable solution backed by ZKL’s expertise and quality assurance.

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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.