gearbox

[Jak24]

HI

Would i have any trouble with this motor:
http://shop.maxonmotor.com/ishop/article/article/266519.xml
or this:
http://shop.maxonmotor.com/ishop/article/article/236918.xml
with the combination of this gearbox:
http://shop.maxonmotor.com/ishop/article/article/118185.xml
my worry is that the max continues torque on the gearbox in 150 mNm and the torque i would get at 18 or 24 volt is 140, and if my battery is fully charged it would probably get more and I'm
afraid that i would damage or wear out the gearbox....
and stall torque of the motor would be much more than the max intermediately possible torque(225 mNm) as it would be more than a 1000mNm
and would there be an issue that it has 'Sleeve Bearing' instead of ball bearings?

Thanks

Regards
Jak24