Powering BBB and unpowered USB hub

Hello,

I want to power BBB and an unpowered USB hub with 2 webcams with a single supply. Two USB cams will be connected to USB Hub, which means two cams plus USB hub itself will draw a current more than 500mA which is limit for the USB. Will it work? Or the power management IC will look the main power and it will detect it is for example 3A power supply and will it give more current to USB plug?

Thanks.

nope wont work. use a powered hub.