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A deep groove ball bearing is a type of bearing that has deep raceway grooves. These grooves are very close to the dimensions of the rolling elements, or balls, that move within them. This specific design allows these bearings to handle both radial and axial loads from different directions. The deep grooves ensure a tight fit between the balls and raceways, increasing the bearing's load capacity and overall durability.

Deep groove ball bearings with ZZ and C3 suffixes are widely used in a range of applications where cleanliness, reliable sealing, and accommodating slight axial movement are crucial. They are well-suited for electric motors, pumps, and other machinery requiring smooth operation and protection against contaminants. With their double shielding and increased clearance, these bearings offer reliability, longevity, and efficient performance.

The C3 suffix refers to the internal clearance level of the bearing, indicating a larger clearance than the standard. This clearance allows for thermal expansion and compensates for operating conditions with higher temperatures or slight misalignment. The C3 clearance enhances the bearing’s ability to handle varying conditions and maintain optimal performance.

The differences between these two types of bearings primarily lie in their design and load handling capabilities: Angular contact ball bearings: Designed chiefly to handle axial loads in one direction and are capable of operating at high speeds. They are set at an angle to bear loads and are typically used in pairs. Deep groove ball bearings: Although able to handle radial and axial loads, they are typically better for applications that require less axial load capacity compared to angular contact bearings. Each type fits specific applications best, depending on the requirements for load, speed, and alignment.

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Self-aligning ball bearings and deep groove ball bearings serve different functions based on their design: Self-aligning ball bearings: Ideal for scenarios with alignment errors or shaft deflections, they adjust to angle changes within the machinery, optimizing operation. Deep groove ball bearings: Designed to handle radial and axial loads efficiently but do not compensate for misalignments.

PFI bearing code 6302-ZZ C3 it´s a high quality Deep groove ball bearing with 15 Inner diameter (mm), 42 mm Outer diameter (mm) and 13 cm of Height (mm). A Deep Groove Ball Bearing is a type of bearing that consists of inner and outer rings with raceway grooves, allowing for smooth rotation and the ability to handle radial and axial loads.

A Deep Groove Ball Bearing with ZZ and C3 suffix combines two important features. The ZZ suffix indicates that the bearing is shielded on both sides with metal shields, providing excellent protection against contaminants like dust and dirt. The shields help to retain lubrication within the bearing, ensuring smooth operation and increased durability.

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Deep groove ball bearings are among the most widely used because of their versatility and performance. Reasons to choose them include: High Load Capacity: They can bear both radial and axial loads, making them versatile for various applications. High-Speed Capability: These bearings can operate efficiently at high speeds, which makes them suitable for numerous industrial and automotive uses. Simplicity and Durability: With a straightforward design, deep groove ball bearings are durable and relatively easy to maintain. Versatility: Useful in a variety of applications, from electric motors to household appliances and more.

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