It is not clear from your description what you did (as all terminal output is missing), but getting the Chrome repo, importing the signing key and installing Chrome is easy like that.
Set up the Google Chrome repo:
sudo zypper ar -f http://dl.google.com/linux/chrome/rpm/stable/x86_64 google-chrome
Import the signing key:
sudo rpm -import https://dl-ssl.google.com/linux/linux_signing_key.pub
Install Google Chrome:
sudo zypper in google-chrome-stable