Bearing 6311 C4 ZKL



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Product detailed description
Bearing 6311 C4 ZKL is a high-quality deep groove ball bearing designed to provide reliable performance in a wide range of industrial applications. Manufactured by ZKL, a reputable brand known for precision and durability, this bearing is engineered to meet stringent standards for smooth operation and long service life.
Key Features of Bearing 6311 C4 ZKL
- Type: Deep groove ball bearing
- Clearance: C4, offering greater internal radial clearance for enhanced performance under high temperature or shaft misalignment conditions
- Seal Type: Z (single shield) to protect the bearing from contamination while allowing low friction operation
- Manufacturer: ZKL, known for its expertise in bearing technology
Dimensions
- Inner Diameter (d): 55 mm
- Outer Diameter (D): 120 mm
- Width (B): 29 mm
This combination of size and clearance makes the bearing 6311 C4 ZKL ideal for applications requiring a robust bearing capable of handling moderate radial and axial loads, such as electric motors, gearboxes, pumps, and industrial machinery. The C4 clearance rating ensures that the bearing can accommodate thermal expansion and heavy loads without performance degradation.
Thanks to the Z-type shield, the bearing is well-protected against dust and debris, which extends its operational lifespan and reduces maintenance needs. The bearing's design supports high-speed rotation with minimal friction, contributing to increased energy efficiency and reliability.
Choose bearing 6311 C4 ZKL for your machinery to benefit from a durable, precision-engineered solution that enhances operational efficiency 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.