ICS 25. 080. 01 Machinery Industry Standard of the People's Republic of China JB/T9163.1~9163.20--1999 Fixtures and attachments for gear cutting machine Fixtures and attachments for gear cutting machine1999-05-20Promulgated State Administration of Machinery Industry 2000-01-01Implementation 1Scope Machinery Industry Standard of the People's Republic of China Fixtures for gear shping machineDimenslons JB/T 9163.5-1999 Generation 52003.5-87 This standard specifies the type and size of gear tools. It is applicable to machine tool models Y4.Y54, and is the preferred gear with a diameter of 20-40mm. Type and size Type and size are as follows: National Machinery Industry Week 1999-05-20 Approved 2000-01-01 Implementation Limited deviation JB/T9163.51999 Marking example: JBLT9163.S-1999 d=30mm, a 20mm diameter fixture Marking JB.T9:63.5—1999 30×120 fB/9600o Appendix AbzxZ.net 【Reminder of the diameter size of the mandrel with process allowance This appendix lists 1, Ⅱ and two types of mandrel diameter sizes, which are determined according to the machining allowance between the working procedures of the positioning part, and are mainly used for machining between working procedures Process mandrel diameter Joining difference Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.