This is a challenging question to answer. The best answer I can give is "caveat emptor".
You first need to know that the brand is reputable. My experience leads me to implicitly trust these brands: Nichicon, United/Nippon Chemi-con, Rubycon, Panasonic and Samxon. Major manufacturers should be able to provide life test data to justify the hours-of-life ratings that are on the parts.
You also need to know that the application isn't over-stressing the capacitor. A bad design that leads to excess ripple current or operating temperature or excessive voltage (or some combination of the three) may cause even the best capacitors on the market to fail prematurely. Using a general-purpose capacitor in a circuit that needs a high ripple, low-impedance capacitor is a prime example of where things can go bad quickly. A good cap in a circuit with good design margins should last years without issues, as the design will accept some degradation of the capacitor over time before failing.
Only when you know these two factors would you even be in a position to judge why a capacitor failure occurred.
You need to trust your supplier. The caps need to be stored in proper conditions with date-of-manufacture to determine if any forming/healing needs to be performed on them before sending your circuit out into the world - ideally, the caps should be new enough that this isn't an issue, but sometimes you need a certain value and you have to make do with whatever you can get.
Counterfeit parts are a huge problem and even a reputable shop (or international distributor) can occasionally be fooled, especially with 'lean' warehousing and part inventories moving from place to place.
As ever, a full circuit diagram would be invaluable - even if to show that there is nothing much more present than has been stated.
VAC = 220V so Vpeak = 220*1.414 =~ 310V.
180V DC/310 =~ 0.58
This is the sine of thge angle when the rectifiers start (or end ) conducting + 35 degrees.
For 35/90 of the cycle the voltage in is below Vdc so the cap MUST provide the motor current. If you do not have any energy storage in inductors then the cap is seeing a ripple current of in the order of the motor current and peak currents will very likely be higher (depending on transformer and wiring resistsance and more.)
As dissipation will be in the order of proportional to current squared you probably have about 10 x rated dissiation due to excess ripple current.
Nichicon are a well respected brand. Chances are the actual ripple current capacity on a genuine Nichicon meets or exceeds specifications. But it is unlikely to exceed it by enough to save you here IF the circuit is as it seems. It is possible that the cap is a counterfeit. This definitely happens and Nichicon are a well enough known brand that people MAY counterfeit them, although I have no specific knowledge of this happening in this case.
UUCAP I know not.
It is not unusual for little known Asian components to not come close to spec sheet claims.
In this case it appears that they exceed the specs handsomely !!!!
I'd not complain!
But do look at the actual ripple current.
A small sense resistor in the cap ground lead will allow a scope to be used with due care (or in the "hot" side with an isolation device AND if you know what you are doing. Or a Hall clamp / proximity meter or ... .
Note that cap lifetime ~+ Rated hours x 2 ^ [(Trated-Trun) / 10 ]
It is usual to run a cap at WELL below rated temperature.
30C below = 2 ^ (30/10) = 8 x rated lifetime.
So a 2000 hour rated cap would last about 2000 x 8 = 16000 hours ~= 2 years.
The larger margin the better.
Note that an Al electrolytic cap with NO applied voltage, held at high temperature will die faster than when voltage is applied !
Best Answer
Power supply electrolytic capacitors often have a tolerance of +/-20% or even -20/+50% (I've seen -20/+80%). Usually a larger capacitance does no harm (as you might guess from the way the tolerances are specified).
Your capacitor measures +25% (assuming the meter is measuring it accurately), which may or may not be within tolerance, but normally a larger capacitance does no harm, within reason. A much smaller capacitance than nominal would be a much larger cause for concern.