ball bearing

简明释义

滚珠轴承

英英释义

例句

1.He replaced the old ball bearing in his skateboard for a smoother ride.

他更换了滑板上的旧滚珠轴承以获得更平滑的骑行体验。

2.In many machines, ball bearings reduce friction and increase efficiency.

在许多机器中，滚珠轴承减少摩擦并提高效率。

3.When assembling the robot, we need to ensure that each ball bearing is properly lubricated.

在组装机器人时，我们需要确保每个滚珠轴承都得到适当的润滑。

4.The bicycle's wheels rotate smoothly thanks to the high-quality ball bearing.

这辆自行车的轮子因为高质量的滚珠轴承而顺畅旋转。

5.The engine's performance improved significantly after installing new ball bearings.

安装新滚珠轴承后，发动机的性能显著提高。

作文

In the world of engineering and mechanics, the term ball bearing refers to a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. This design allows for smooth rotation and reduced friction, making it an essential component in various machines and devices. The invention of the ball bearing dates back to the 18th century, and since then, it has revolutionized the way mechanical systems operate. Without these small yet powerful components, many modern conveniences would be significantly less efficient or even impossible to function.The basic principle behind a ball bearing is relatively simple. It consists of an inner ring, an outer ring, and a set of spherical balls that fit between the two rings. When the inner ring rotates, the balls roll along the surface of the outer ring, allowing for smooth movement while minimizing friction. This mechanism is crucial in various applications, from household appliances to complex industrial machinery. For instance, in electric motors, ball bearings enable the rotor to spin freely, which is vital for the motor's performance and longevity.One of the key advantages of using ball bearings is their ability to handle both radial and axial loads. Radial loads are those that act perpendicular to the shaft, while axial loads are parallel to the shaft. This versatility makes ball bearings suitable for a wide range of applications, including automotive, aerospace, and manufacturing industries. In cars, for example, ball bearings are used in wheel hubs, transmissions, and steering systems to ensure smooth operation and enhance overall vehicle performance.Moreover, ball bearings come in various sizes and materials, allowing engineers to select the most appropriate type for their specific needs. Common materials include stainless steel, ceramic, and plastic. Each material has its unique properties, such as resistance to corrosion, weight, and thermal conductivity. By choosing the right material, engineers can optimize the performance and lifespan of the ball bearing in its designated application.Despite their small size, ball bearings play a significant role in the efficiency and functionality of numerous devices. They are often found in everyday items such as bicycles, fans, and even computer hard drives. The presence of ball bearings in these devices reduces wear and tear, leading to longer-lasting products and decreased maintenance costs. As technology continues to advance, the demand for high-performance ball bearings will likely increase, driving further innovation in their design and manufacturing processes.In conclusion, the ball bearing is a remarkable invention that has had a profound impact on modern engineering and technology. Its ability to reduce friction and support various loads makes it an indispensable component in countless applications. As we continue to rely on machines and technology in our daily lives, the importance of ball bearings will only grow, highlighting the need for ongoing research and development in this critical area of engineering. Understanding the function and significance of ball bearings is essential for anyone interested in the fields of mechanics and manufacturing, as they are foundational elements that contribute to the efficiency and effectiveness of countless systems and devices.

在工程和机械的世界中，术语滚珠轴承指的是一种使用球体来维持轴承内外圈之间间隔的滚动元件轴承。这种设计允许平稳旋转并减少摩擦，使其成为各种机器和设备中的重要组成部分。滚珠轴承的发明可以追溯到18世纪，自那时以来，它彻底改变了机械系统的运作方式。如果没有这些小而强大的组件，许多现代便利设施将显著降低效率甚至无法运作。滚珠轴承的基本原理相对简单。它由一个内圈、一个外圈和一组在两个圈之间适合的球体组成。当内圈旋转时，球体沿外圈表面滚动，从而实现平滑运动，同时最小化摩擦。这种机制在各种应用中至关重要，从家用电器到复杂的工业机械。例如，在电动机中，滚珠轴承使转子能够自由旋转，这对电动机的性能和寿命至关重要。使用滚珠轴承的一个主要优点是它们能够处理径向和轴向载荷。径向载荷是垂直于轴施加的载荷，而轴向载荷则与轴平行。这种多功能性使得滚珠轴承适用于汽车、航空航天和制造业等广泛应用。在汽车中，例如，滚珠轴承用于车轮轴承、变速箱和转向系统，以确保平稳运行并增强整体车辆性能。此外，滚珠轴承有各种尺寸和材料可供选择，使工程师能够为其特定需求选择最合适的类型。常见材料包括不锈钢、陶瓷和塑料。每种材料都有其独特的特性，如耐腐蚀性、重量和热导率。通过选择合适的材料，工程师可以优化滚珠轴承在指定应用中的性能和使用寿命。尽管它们体积小，但滚珠轴承在众多设备的效率和功能中发挥着重要作用。它们通常出现在日常物品中，如自行车、风扇甚至计算机硬盘驱动器。滚珠轴承在这些设备中的存在减少了磨损，从而延长了产品的使用寿命并降低了维护成本。随着技术的不断进步，对高性能滚珠轴承的需求可能会增加，推动其设计和制造过程的进一步创新。总之，滚珠轴承是一项了不起的发明，对现代工程和技术产生了深远的影响。它减少摩擦和支持各种载荷的能力使其成为无数应用中不可或缺的组件。随着我们在日常生活中继续依赖机器和技术，滚珠轴承的重要性只会增加，突显出在这一关键工程领域继续进行研究和发展的必要性。理解滚珠轴承的功能和重要性对于任何对机械和制造领域感兴趣的人来说都是必不可少的，因为它们是构成无数系统和设备效率与有效性的基础元素。