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Life, 1 life of actuator using ball screws, 2 life of actuator using slide-screws – IAI America RCP3-RA2BR User Manual

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12. Life

12. Life

12.1

Life of Actuator Using Ball Screws

The life of actuator using ball screws is set to 5,000 km (guideline), assuming it is operated with the
maximum loading capacity and maximum acceleration/deceleration.

12.2

Life of Actuator Using Slide-screws

The lead-screw type actuator uses a lead screw and its nut wears over time.
A reference for product life is presented based on the wear amount of the nut.
The positioning precision of this product, such as lost motion, will drop as the wear of the nut progresses.
(Reference product life)

Horizontal application

10 million back-and-forth operations

Vertical application

5 million back-and-forth operations

12.2.1 Relationship of Cycle Time and Product Life

(1) Horizontal application

The graph below shows the relationship between the cycle time for one back-and-forth operation and the
life of the product in a horizontal application (product life: 10 million back-and-forth operations).
The lines based on 8 hours of operation and 24 hours operations a day, for 240 days a year, are shown.
Use this graph as a reference when determining the product life.

Life (years)

8 hours of operation

24 hours of operation

Cycle time (sec)

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