Linear Mechanical Systems Sizing & Estimating Life of a Positioning System

Linear Mechanical Systems Application Details

Linear Mechanical Systems Defining Duty Cycle and Calculating Travel Usage Establish what type of life expectancy is required (in years). Calculate inches traveled during a year & multiply by required years. Select a Positioning System which will exceed total inches used. inches x cycles x hours x days x weeks x years cycle min day week year Example: 6” travel, out/back in 10 sec., 16 hours, 5 days, 50 weeks, 6 years 12” x 60 sec x 60 min x 16 hour x 5 days x 50 weeks x 6 years = ,680,000 inches sec min hour day week year

Linear Mechanical Systems Drive Mechanism – Based on speed, repeatability, thrust, and accuracy (belt, acme, ball, etc.). Make sure to review maximum speed rating. Linear bearing type – Based upon load capacity, deflection, configuration (X-Y-Z), and application. Ratings should be provided for dynamic & static capacities.

Linear Mechanical Systems Applying Safety Factors