JB/T 2858.4-1999 Technical requirements for thread grinding machines

JB/T 2858.4-1999 This standard is a revision of ZB J56 003-87 "Technical requirements for manufacturing and acceptance of thread grinders". During the revision, only editorial changes were made according to relevant regulations, and the technical content remained unchanged. This standard is part of the JB/T 2858 "Thread grinder" series of standards, which includes the following four parts: JB/T 2858.1-1999 Thread grinder parameters JB/T 2858.2-1999 Thread grinder series JB/T 2858.3-1999 Thread grinder accuracy inspection JB/T 2858.4-1999 Thread grinder technical conditions This standard specifies the manufacturing and acceptance requirements for thread grinders. This standard is applicable to thread grinders, universal thread grinders and screw grinders with a maximum workpiece diameter of 50 to 500 mm and a maximum workpiece length of 500 to 5000 mm and a movable table. This standard was first issued in December 1980 and revised for the first time in December 1987. JB/T 2858.4-1999 Technical requirements for thread grinding machines JB/T2858.4-1999 Standard download decompression password: www.bzxz.net