Grinding wheel for producing internal profilings

In a grinding wheel for producing internal profilings, and including a grinding disk that is disposed at a front end of a rod-like grinding machine arm at the respective angle of slope of the internal profiling that is to be produced, with said grinding disk being adapted to be driven by a drive shaft, which is disposed at the other end of said arm, via drive means that extends through said arm, the improvement wherein said drive means comprises:

• a first belt pulley connected to said drive shaft;
• an intermediate shaft disposed in said front end of said arm;
• a second belt pulley connected to said intermediate shaft;
• a belt disposed within said arm and interconnecting said first and second belt pulleys and hence said drive shaft and said intermediate shaft;
• a spindle on which said grinding disk is mounted;
• a first gear wheel disposed on said intermediate shaft;
• a second gear wheel disposed on said spindle, with said first and second gear wheels forming an intermeshing pair of gear wheels that provides a driving connection between said intermediate shaft and said spindle;
• and
• bearing means for disposing said spindle on said arm so that said spindle is pivotable about a center point of said first gear wheel on said intermediate shaft, said grinding disk provided with an uncorrected profile that can be adapted to the respective angle of slope of internal profiling that is to be produced without disassembling the grinding wheel such that the grinding disk can be driven at high speeds with little energy loss.