Bearing 3303 C3 ZKL



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Product detailed description
Bearing 3303 C3 ZKL – High-Performance Deep Groove Ball Bearing
The bearing 3303 C3 ZKL is a precision-engineered deep groove ball bearing designed to deliver exceptional performance in a variety of industrial applications. Manufactured by ZKL, a trusted name in bearing technology, this model combines durability, reliability, and efficiency to ensure optimal operation of rotating equipment.
Featuring a robust construction, the 3303 C3 ZKL bearing is tailored to withstand heavy radial loads and moderate axial loads in both directions. Its design includes a C3 internal clearance, which provides additional space between the rolling elements and the raceways. This clearance makes the bearing ideal for applications where thermal expansion or high-speed operation occurs, ensuring smooth rotation without excessive friction or wear.
Key Features and Benefits
- Model: 3303 C3 ZKL
- Type: Deep groove ball bearing
- Internal Clearance: C3 (greater than normal clearance for high-speed or thermal expansion)
- Shield Type: Z (single metal shield on one side) to protect against contamination while allowing low friction operation
- High-Quality Materials: Manufactured using premium-grade steel for enhanced durability and corrosion resistance
- Low Noise and Vibration: Precision manufacturing ensures smooth and quiet operation
- Wide Application Range: Suitable for electric motors, gearboxes, pumps, and various industrial machinery
Dimensions and Specifications
- Inner Diameter (d): 17 mm
- Outer Diameter (D): 40 mm
- Width (B): 12 mm
The 3303 C3 ZKL bearing is engineered to meet the demanding requirements of modern machinery, providing long service life and minimizing downtime. Its single metal shield (Z) offers protection against dust and debris without sacrificing bearing speed or efficiency, making it an excellent choice for applications where moderate contamination is a concern.
Whether you require a reliable bearing for high-speed electric motors or precision equipment, the 3303 C3 ZKL provides outstanding performance, ensuring your machines operate smoothly and efficiently. Invest in quality and durability with this top-tier ZKL deep groove ball bearing.

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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.