yea, the bells with the pinions already screwed on are a right pain! they are stuck on well enough to make removal, without damaging the gears, very difficult. and yet the gears are all too happy to fly off once in a while - they go with enough speed to put a nice hole in ur shell... the bells are available without the gears, and the pinions are also available seperately.

i have here a cen 14/18 bell that is all one piece, its plain silver in colour, but i dont have a part number im afraid - it seems to wear better than the coloured pinions too - see if u can find one, i will keep an eye out for u mate.