Introduction
Thrust ball bearings are a type of rolling-element bearing that can support heavy axial loads. This type of bearing is used in applications that carry substantial thrust loads between shafts, such as helicopters. Thrust ball bearings are comprised of two components -- the bottom race that contacts the shaft, and the top race that carries the ball cushions. A series of cage pockets hold the ball cushions and are equally spaced around the circumference of the bearing. The vehicles that contain thrust ball bearings must be capable of carrying increased axial loads so thrust ball bearings must be applied appropriately.
Characteristics
The most distinguishing characteristic of thrust ball bearings is the fact that they are completely self-aligning. The type of lubricant used will affect the ability of the bearing to maintain its alignment and provide adequate lubricant flow. Additionally, the cage pockets surrounding the balls cushions will ensure that the bearing travels along a predetermined path. The ball cushions will roll along the predetermined path, creating less friction against the bearing race. Moreover, thrust ball bearings have low friction coefficients, which allow them to run at higher speeds than other types of bearings.
Durability
The design of thrust ball bearings makes them less prone to wear and tear due to their light and thin construction. This type of bearing also has a higher alance in comparison to other types of bearings, enabling it to maintain consistency during high-speed applications. The materials used to construct thrust ball bearings are usually heat-treated steel to ensure greater strength and durability. This type of bearing also requires less maintenance due to the quality of the materials used.
Applications
Thrust ball bearings are mainly used in high-speed applications or where space is limited. Examples of these applications include vertical turbines, transmissions, helicopter drive systems and heavy-duty cranes. Thrust ball bearings are also used in high-power agricultural equipment, and consumer goods such as snowmobiles and refrigerators. Their ability to provide reliable performance even under extreme conditions is ideal for applications involving harsh environments.
Conclusion
Thrust ball bearings are designed to support heavy axial loads and have self-aligning and low friction coefficients. The construction of thrust ball bearings is usually made from heat-treated steel, making them more durable and reliable. They are most commonly used in high-speed applications or in applications that require reliability in extreme conditions. Overall, thrust ball bearings offer excellent performance, durability and reliability in a wide variety of applications.
