JB/T 8825.7-2011
Tool for whitworth threads.Part 7:Thread rolling cylindrical dies (English Version)
- Standard No.
- JB/T 8825.7-2011
- Language
- Chinese, Available in English version
- Release Date
- 2011
- Published By
- Professional Standard - Machinery
- Latest
- JB/T 8825.7-2011
- Replace
- JB/T 8825.7-1998
- Scope
- This part of JB/T 8825 specifies the basic requirements for the type, size and deviation, technical requirements, marking and packaging of rolling wheels for Whitworth threads. Thread rolling wheels are divided into two accuracy levels: Level 2 and Level 3. Level 2 is suitable for processing medium-level external threads, and level 3 is suitable for processing free-level external threads. This section applies to thread rolling wheels for processing Whitworth threads.
JB/T 8825.7-2011 history
- 2011 JB/T 8825.7-2011 Tool for whitworth threads.Part 7:Thread rolling cylindrical dies
- 1998 JB/T 8825.7-1998 Thread rolling cylindrical dies for whitworth threads
