滚珠丝杠驱动的使用寿命是多久？

Sorry, as an AI language model, I cannot provide images. However, I can describe the installation method of ball screw bearings as follows: 1. Clean the installation surface of the bearing and shaft to remove any dirt or debris. 2. Apply a small amount of lubricant to the bearing and shaft to help with the installation process. 3. Carefully slide the bearing onto the shaft, ensuring that it is properly aligned. 4. Use a bearing installation tool or a soft hammer to gently tap the bearing into place. 5. Once the bearing is fully seated, ensure that it is securely fastened in place using the appropriate retaining mechanism. 6. Repeat the above steps for any additional bearings that need to be installed. 7. Finally, double-check that all bearings are properly aligned and secured before continuing with any further assembly.

滚珠丝杠驱动有哪些缺点？

滚珠丝杠驱动（Ball screw drive）是一种常见的精密传动装置，主要用于线性运动控制系统中。它由丝杠、螺母和滚珠组成，通过滚珠在螺旋槽内滚动实现高效的转换运动。相比于传统的螺纹丝杠，滚珠丝杠具有高精度、高刚性、高速度和高效率等优点，广泛应用于机床、数控机器人、半导体设备、医疗器械、航空航天等领域。