Opposed endless belt grinding apparatus

Grinding apparatus for grinding workpieces comprising holding means having opposed sides and adapted to retain a workpiece having opposed ends with said opposed ends extending therefrom at said opposed sides, a pair of endless abrasive belts disposed on said opposed sides of said holding means, each belt having a run thereof, a grinding surface and a surface opposed thereto means operable to move one of said holding means and said belt runs along a path of relative movement therebetween, each belt run being guided in spaced relationship with said holding means to define an elongate grinding zone between said belts, said belts being guided by respective support means disposed to contact each belt along said opposed surface thereof over the length of said grinding zone and to guide said grinding surface into contact with a respective end of a workpiece when retained in said holding means, each support means having a belt support surface which converges toward said holding means in the direction of relative motion between said holding means and the respective abrasive belt, whereby each of said belts is guided to move along a path adjacent and diverging from said holding means in said grinding zone.