Bearing NU 305 ZKL



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Product detailed description
Bearing NU 305 ZKL: High-Performance Cylindrical Roller Bearing
Bearing NU 305 ZKL is a precision-engineered cylindrical roller bearing designed to deliver exceptional performance in demanding industrial applications. Manufactured by ZKL, a trusted name in the bearing industry, this bearing offers superior load-carrying capacity and durability, making it an ideal choice for heavy machinery, electric motors, gearboxes, and other rotating equipment.
The NU 305 ZKL bearing features a robust design with two integral flanges on the outer ring and no flanges on the inner ring. This configuration allows for axial displacement of the shaft relative to the housing, accommodating thermal expansion and contraction without compromising operational stability. Its cylindrical roller elements ensure reduced friction and efficient load distribution, resulting in prolonged service life and enhanced reliability.
Key Features of Bearing NU 305 ZKL
- Type: Cylindrical roller bearing with two flanges on the outer ring and no flanges on the inner ring
- Manufacturer: ZKL
- High radial load capacity suitable for heavy-duty applications
- Supports axial displacement of the shaft, minimizing stress and wear
- Precision manufactured for smooth operation and reduced noise
- Durable construction for extended operational lifespan
Dimensions and Specifications
- Inner diameter (d): 25 mm
- Outer diameter (D): 62 mm
- Width (B): 17 mm
- Mass: Approximately 0.25 kg
These precise dimensions ensure compatibility with a wide range of mechanical assemblies, facilitating easy integration and replacement. The NU 305 ZKL bearing is also designed for optimal lubrication, which further enhances its operational efficiency and reduces maintenance requirements.
Applications of Bearing NU 305 ZKL
This bearing is widely used across various industries due to its reliable performance and adaptability. Typical applications include:
- Electric motors and generators
- Gearboxes and transmissions
- Machine tools and automation equipment
- Conveyor systems and material handling machinery
- Pumps and compressors
Choosing bearing NU 305 ZKL ensures that your equipment runs smoothly with minimal downtime, thanks to its high-quality design and manufacturing standards. Whether you need it for replacement or new equipment assembly, this bearing offers excellent value and performance.

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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.