Firstly, you don't need to say "in the world" in either phrase.
If you want to say that these catcher bearings are unlike any other catcher bearings, I think it would be better to use the word "unique". "No analog" would mean you can't make an analogy between these bearings and any other object.
But, if you want to say that these catcher bearings perform a function unlike any other object in any other system, you could say they have no analog. Literally, no analogy can made regarding your catcher bearings.
It may be better to rephrase entirely though. From a little googling, Russians do seem to like the phrase "no analog in the world".