I replaced daemon&wallet files in the folder but I accidentally deleted '.bin'. Will it work without it?
A daemon will work fine but unfortunately you won't be able to use your wallet.
All you want is wallet.bin
.keys. If you have this file or backup of this file your coins are safe.
Just run:
simplewallet --wallet-file wallet.binsimplewallet will find your wallet.bin.keys file and generate .bin file. Remember that .bin file is just a cache.