6211K Single Raw Ball Bearing KKK

A single-row ball bearing is a type of rolling-element bearing commonly used to reduce friction and support radial loads in various mechanical applications. It consists of several key components:

• Outer Ring: The outermost ring of the bearing, which provides a rigid outer surface for mounting and protects the inner components.
• Inner Ring: The innermost ring of the bearing, which fits onto a shaft or spindle. It provides the inner raceway for the rolling elements.
• Rolling Elements: In a ball bearing, these are spherical balls typically made of steel. They are evenly spaced and circulate between the inner and outer rings. The rolling elements reduce friction by rolling rather than sliding against the inner and outer raceways.
• Cage or Retainer: A cage or retainer holds the rolling elements in place, maintaining proper spacing and preventing them from contacting each other. Common materials for cages include steel, brass, or plastic.
• Shields or Seals (Optional): Some ball bearings feature shields or seals to protect the interior from contamination and prevent lubricant leakage. Shields are usually metal plates that partially cover the bearing, while seals are typically made of rubber or other materials and provide more comprehensive protection.

Single-row ball bearings come in various designs, including deep groove ball bearings, angular contact ball bearings, and self-aligning ball bearings, among others. The choice of design depends on the specific application’s requirements for load capacity, speed, precision, and axial or radial loads.

These bearings are widely used in a range of machinery and equipment, such as electric motors, automotive components, industrial machinery, and household appliances, due to their ability to reduce friction and support smooth rotation. Proper lubrication and maintenance are essential to ensure the long-term performance and durability of single-row ball bearings.