Pretty sure such standard doesn't exist. Say it's for a CD ejector in a car, it would be specified by the OEM to the number of openings of that the a CD would be ejected by a worst case customer in ten years (normal design requirement for non serviced parts) plus a safety factor. What is also relevant is how you prove you meet the durability, do you test a few to breaking or just to pass requirement. Probably you will need weibull analysis: http://www.weibull.com/basics/lifedata.htm 

Dear Jaronie

It's quite dependent to the working conditions, feeding level and its initial quality. 

I know for piezoelectric actuators, if we neglect the harsh working environment, effects of external-source vibrations, impacts, etc, a well polarized high quality actuator may bear the durability of 6 months to one year without abrupt cracking or deterioration and then it needs  re-poling process.    

Hello Jaronie,

There are certain standards pertaining to the Automotive and Aerospace industry.

Regarding to your question of durability or lifecycle, I shall re-state as "Mean-Time-Before-Failure" or MTB (or MTBF). For many industrial products such as relays, switches and other type or electromechanical systems or actuators, the manufacturer states the life of that particular products in cycles or hours of operation.

I do not know the exact standard (number reference) but for the automotive industry, there is a "STAR-Alliance" which is an association or cluster of automotive manufactures that define some commonly acceptable standards and procedures that can be applied throughout the (automotive) industry.

For aerospace, there are MIL and other standards.

Apart from the operating life, operating temperatures, humidity or corrosive environments DO AFFECT the life-cycle of particular product and hence these factors must and are also taken into account.

What important is to prove how your or one's product to meet those specifications. For this there are "ACCELERATED LIFE-CYCLE TESTS" or ALTs carried out by the manufacturer or during the production phase on the said product.

You can consult with the National Standards Office in your country to refer to as what standards are applicable for the product that you are interested in.

Wishing you best luck!

Thanks!

A life time of an industrial robot is declared to 12 years. Try to calculate the number of cycles of the motor from the intermittence and this 12 years.

Kind regards

Thanks guys