Lubricants on ball screws are as important to their performance and life as are their operating loads, speeds, accuracies, environments, and power requirements. Lubricant reduces the already low friction by minimizing contact between the balls and grooves, thus adding torque and increasing efficiency, while extending the screw’s life by a factor of 10. Proper selection and application of lubricants also affects contamination, a leading cause of premature ball-screw failure...
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