Pinball nut, also known as steel ball nut or elastic nut, is a special nut with a steel ball structure that plays a key role in various mechanical connection and assembly scenarios.
• Structural construction: mainly composed of nut body, steel ball, and reset spring. The nut body is usually block shaped, with a threaded hole at the center for the bolt to pass through. At the bottom or side of the nut body, there are holes that are compatible with the steel ball, and the steel ball is placed in them. At the same time, a reset spring is also equipped in the hole to provide elastic support for the steel ball. For example, some marble nuts have two centrally symmetrical steel ball holes at the bottom, and the steel balls inside the holes are partially exposed on the surface of the nut under the action of the reset spring.
Working principle: The fastening and positioning function is achieved by relying on the frictional force between the steel ball and the contact surface, as well as the elastic positioning of the steel ball. When installing the ball nut into a groove such as an aluminum profile, the steel ball is pushed tightly against the inner wall of the groove by the reset spring. On the one hand, this close contact generates significant friction, effectively preventing the nut from sliding along the groove and providing a stable positioning effect; On the other hand, when using bolt connections, steel balls can help the nut automatically locate its position, even in some complex installation environments, allowing the nut to quickly align with the bolt and significantly improve installation efficiency.
Material selection: Common materials for the nut body include stainless steel, carbon steel, and other metal materials. Pinball nuts made of stainless steel have excellent rust and corrosion resistance, suitable for working environments with humid and corrosive media, such as food processing equipment, chemical machinery, and other fields; Carbon steel material has relatively low cost and high strength, and is widely used in general mechanical manufacturing, construction engineering and other scenarios. Steel balls are generally made of metals with high hardness, such as bearing steel, to ensure their wear resistance and compressive strength, and to ensure stable performance during long-term use.
Product advantages: The installation process is extremely simple, and in many cases, it can be pressed into the aluminum groove by hand without the need for complex tools and professional skills; Has good positioning effect, is not prone to displacement after installation, and can maintain stability in various positions such as vertical and inclined surfaces; It also has certain seismic performance, which can maintain the reliability of the connection and reduce the risk of loosening under vibration working conditions.
Application scenario: Frequently used in the construction of industrial aluminum profile frames, used to connect aluminum profiles, build various mechanical protective fences, automation equipment racks, assembly line workbenches, etc; In the field of electronic device manufacturing, it is also commonly used to fix internal components, which is convenient to install, precise in positioning, and meets the needs of precision assembly of electronic devices; In addition, in some display stands, experimental devices, and other scenarios that require quick assembly and disassembly, ball nuts have also been widely used due to their unique advantages.
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