它的耐用性和使用寿命如何？

Roller screws are often used in high-load applications, where a high level of accuracy and precision is required. They are typically used in industrial machinery and automation systems, such as robotics, machine tools, and aerospace equipment. Roller screws consist of a threaded shaft and a nut that contains a series of rollers. As the shaft rotates, the rollers move along the threaded shaft, converting rotational motion into linear motion. The use of rollers in the nut reduces friction and provides a higher load capacity than traditional ball screws. Imported roller screws are often preferred for their high quality and reliability. They are typically manufactured to strict quality standards and are made using high-quality materials, such as hardened steel or stainless steel. Imported roller screws may also offer advanced features, such as improved accuracy, higher load capacity, and longer life. However, they may be more expensive than domestically produced roller screws.