Bearing NN 3021 KP/51 ZKL



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Product detailed description
Bearing NN 3021 KP/51 ZKL is a high-quality spherical roller bearing designed to deliver exceptional performance and durability in demanding industrial applications. Manufactured by ZKL, a trusted name in the bearing industry, this bearing model is engineered to meet rigorous standards for reliability and efficiency.
Key Features of Bearing NN 3021 KP/51 ZKL
- Type: Spherical roller bearing
- Designation: NN 3021 KP/51 ZKL
- Manufacturer: ZKL
- Design: The “NN” prefix indicates a double row spherical roller bearing without an inner ring flange, allowing it to accommodate heavy radial loads and axial displacement in both directions.
- Sealing: The “Z” in the designation signifies a single metal shield on one side, providing protection against contamination while maintaining low friction.
- Precision and Quality: Produced with high-grade steel and advanced manufacturing processes to ensure long service life and optimal performance under challenging conditions.
Dimensions and Specifications
The bearing NN 3021 KP/51 ZKL typically features the following dimensions:
- Inside Diameter (ID): 105 mm
- Outside Diameter (OD): 190 mm
- Width: 51 mm
These dimensions make it suitable for heavy-duty machinery and equipment requiring robust support and reliable rotational movement.
Applications
Bearing NN 3021 KP/51 ZKL is widely used in various industrial sectors including mining, construction, steel mills, and heavy machinery. Its ability to withstand high loads and accommodate misalignment makes it ideal for:
- Heavy-duty gearboxes
- Conveyor systems
- Crushing and grinding equipment
- Industrial fans and blowers
Why Choose Bearing NN 3021 KP/51 ZKL?
This bearing is engineered for maximum durability and reliability. Its robust construction and advanced design features ensure excellent load-carrying capacity and resistance to wear and tear. Choosing the NN 3021 KP/51 ZKL bearing means opting for a trusted component that enhances machine performance and reduces downtime.

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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.