Yes, used to rebuild them often back in the 90's. It just seemed to me Heidelberg had quit selling the parts years ago. How long ago did you get the parts for your MO bridge? Another question would be, how much are they charging for the kit, depending on how much is worn out, different models and year of manufacture use different means to oscillate the roller. Consider time and materials to accomplish repair, it may be to one's benefit to contact one of the independent parts suppliers...Just last week one of my customers purchased a gauranteed bridge roller for an SM72 for $900, plus core return.