This standard specifies the requirements and inspection methods for geometric accuracy and working accuracy of high-precision horizontal lathes. This standard applies to high-precision horizontal lathes with a maximum rotation diameter of 250 to 500mm and a maximum workpiece length of 1500mm.
JB/T 8768-1998 history
2011JB/T 8768.1-2011 High precision horizontal lathes.Part 1:Testing of the accuracy
1998JB/T 8768-1998 High precision horizontal lathes Accuracy inspection