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A ZKL Self-Aligning Ball Bearing Inner Dia 20 mm Outer Dia 47 mm Width 14 mm, 1204 P6 NF is a type of rolling-element bearing designed to accommodate misalignment between the shaft and the housing, making them suitable for applications where shaft deflection or misalignment may occur. These bearings are capable of adjusting to angular misalignment within certain limits, which helps to reduce stress and wear on the bearing and prolong its service life. Self-aligning ball bearings are commonly used in applications such as conveyor systems, agricultural machinery, and industrial equipment. Here are the key features and components of a self-aligning ball bearing: Inner Ring: The inner ring of a self-aligning ball bearing is typically mounted onto a shaft and provides a mating surface for the balls. It contains a concave raceway or groove along its circumference, which allows the balls to self-align and adjust to angular misalignment. Outer Ring: The outer ring of a self-aligning ball bearing is mounted within a housing or support structure and provides support and alignment for the bearing assembly. It contains a complementary convex raceway or groove to the inner ring, allowing the balls to move freely and self-align. Ball Bearings: Self-aligning ball bearings contain spherical ball bearings arranged in a circular raceway between the inner and outer rings. These ball bearings transmit radial loads and can accommodate certain degrees of angular misalignment between the shaft and the housing. Cage or Separator: The cage or separator holds the ball bearings in place within the bearing assembly, ensuring proper spacing and alignment between the balls. It prevents the balls from coming into contact with each other, reducing friction and wear. The cage may be made of steel, brass, or other materials, depending on the application and operating conditions. Raceways: The raceways are grooves or channels machined into the inner and outer rings of the self-aligning ball bearing. These raceways provide a smooth and precise path for the balls to roll along, transmitting radial loads and allowing for self-alignment. Self-Aligning Capability: The unique feature of self-aligning ball bearings is their ability to accommodate misalignment between the shaft and the housing. This self-aligning capability is achieved through the design of the raceways and the spherical shape of the ball bearings, allowing the bearing to adjust to angular misalignment within certain limits. Radial Load Capacity: Self-aligning ball bearings are primarily designed to support radial loads, making them suitable for applications where radial forces predominate. However, they can also accommodate certain degrees of axial load, depending on the bearing design and configuration. Lubrication: Self-aligning ball bearings require lubrication to reduce friction and wear, improve efficiency, and dissipate heat generated during operation. Lubricants such as grease or oil are applied to the ball bearings and raceways to provide a thin film of lubrication between moving surfaces. Overall, self-aligning ball bearings offer a unique combination of radial load support and self-aligning capability, making them suitable for applications where misalignment between the shaft and the housing is likely to occur. By providing smooth operation and reducing stress on the bearing, self-aligning ball bearings contribute to the reliability and performance of machinery and equipment in various industries.

1204 Bearing Size