JB/T 8013.2-1999 This standard specifies the thin-walled drill bushings with a specification of 0.5~7mm. This standard was first issued in 1991 as GB/T 12873-91. JB/T 8013.2-1999 Thin-walled drill bushings for machine tool fixture parts and components JB/T8013.2-1999 Standard download decompression password: www.bzxz.net
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IC5 28.060.41 Standard of the Machinery Industry of the People's Republic of China Parts and components of jigs and fixtures The parts and units of jigs and fixtures1999-08-06 Issued National Bureau of Machinery IndustryWww.bzxZ.net Implementation on 2000-01-01 Standard of the Machinery Industry of the People's Republic of China Parts and components of jigs and fixtures Thin wall drill bushings This standard specifies the thin drill bushing with a size of 0.5~7mm. 2 Referenced standards JBT8013.2—1999 The following standards contain the texts, and the referenced texts in the non-standards are the provisions of this standard. The published and revised versions of this standard are valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the next edition of the standard. GB12186 Technical Conditions for Tool Steel B8044-[9 State Technical Requirements for Machine Tool Parts and Components 3 Dimensions The dimensions are shown in the following figure and table. National Machinery Industry Bureau approved 1999-08-16 128 2100-01-01 implementation : The tolerance is determined by the design 4 Technical conditions JB/T8013.2—[999 4.1 Material: CTMn according to the provisions of GB299 4.2 Heat treatment: 5862HR core 4.3 Other technical conditions according to the provisions of JB/T8044: 5 Marking 5.1 Marking example: L=6mm, thin drill with L=12m: set 6×12JB/T 8013.2—199 Network deviation 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.