Not really, monkey...there's only 5/1000" between pad and rotor, and if hitting when just installed, something is wrong...especially since it's all new.Also make sure you take the cap off the brake fluid resivoir when even you push the caliper cylinder in. Also the pads will always be slightly on the rotors. so there will be some resistance. it wont spin freely like skate board wheel bearings.
right when you just install new pads a rotors you will have pushed the caliper piston all the way in and when you mount everything up. there will be a small gap like you said between the pads and the rotors. But when you use them for the first time you push the pads on the rotor and then they are allways sliding on the rotor but its barely touching.Not really, monkey...there's only 5/1000" between pad and rotor, and if hitting when just installed, something is wrong...especially since it's all new.
Admittedly, if new pads on old rotors, it could be hitting the lip, and that would wear down (had that before), but you don't want pad on rotor all the time at all...heats up rotor or when hot, wouldn't allow them to cool...result, poorer brakes 'maybe' just when you need all you can get.
If hitting...it's something...and since I just wrote stuff on this elsewhere, OP...search for me and brakes and you'll find what I said...not saying it's all correct...but it is! LOL