e life of a ball screw depends on several factors, including the load, speed, lubrication, and environmental conditions. Typically, a properly designed and maintained ball screw can last for millions of cycles before needing replacement. However, factors such as abrasive contaminants, high temperatures, or inadequate lubrication can significantly reduce the lifespan of a ball screw. It is important to follow manufacturer recommendations for maintenance and replacement to ensure optimal performance and longevity.