ðə lˈoʊd dˈɪsk ɪz pəzˈɪʃənd sˌoʊ ðæt ɪts ˈaʊɾɚ ɹˈɪm ɪz pɹˈɛst ɐɡˈɛnst ðə dɹˈɪvən dˈɪsk, ænd nˈoːɹməli hɐz sˌʌm sˈɔːɹt ʌv hˈaɪfɹˈɪkʃən sˈɜːfɪs ɐplˈaɪd tə ðɪ ˈaʊɾɚ ɹˈɪm tʊ ɪmpɹˈuːv tˈoːɹk tɹˈænsfɜː.
The load disk is positioned so that its outer rim is pressed against the driven disk, and normally has some sort of high-friction surface applied to the outer rim to improve torque transfer.