Once you roll over to
www.theanalogdept.com> Thorens Dept. you will see on page one a 124 platter and support spindle diagram.
But you are interested in the TD-160 Dept to look over the maintenance, upgrades and tuning information. Good to learn before you dive in. Read over the pages and maybe put a bit more into the belt change to make the unit like new for you. Between now and belt arrival enjoy the tunes and do your research to see if you care to upgrade you machine a bit or do some routine maintenance on it.