JB/T 3411.122-1999 This standard is a revision of JB 3540-83 "Dimensions of quick-change drill chuck connecting rods". Only the following points were modified during the revision, and the main technical content remained unchanged: - Writing format; - Standard name plus English; - Relevant reference standards and related content; - Thread drawing method. This standard specifies the type and size of quick-change drill chuck connecting rods. JB/T 3411.122-1999 Dimensions of quick-change drill chuck connecting rods JB/T3411.122-1999 Standard download decompression password: www.bzxz.net

ICS25.080.01
Machinery Industry Standard of the People's Republic of China
JB/T3411.122-1999
Extension rod of quick-changed drill chuck-Dimensions
Published on 1999-05-20
State Bureau of Machinery Industry
Implementation on 2000-01-01
Machinery Industry Standard of the People's Republic of China
Extension rod of quidk-change drill chuck Dimensions
This standard specifies the types and dimensions of extension rods for quick-change drill chucks. 2 Reference standards
JB/T3411.122—1999
Replaces JB354083
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are valid. All standards will be revised, and parties using this standard should explore the possibility of using the latest versions of the following standards. GB/T60901993 Drill chuck cone
3 Type and size
Type and size are as specified in the figure below.
No. 2445
Drill from
Note: The size and deviation of the short cone of the drill chuck shall be in accordance with the provisions of GB/T6090. 4 Marking
Marking example:
Taper shank is 7:24 taper No. 45, and the short taper of the drill chuck is D4. Quick-change drill chuck extension rod: Extension rod 45-D4JB/T3411.122—1999
Approved by the State Machinery Industry Bureau on 1999-05-201.6 ±u. iwww.bzxz.net
2000-01-01 implementation
Mechanical industry standard
Dimensions of quick-change drill chuck connecting rod
JB/T3411.122-1999
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing: Postal Code 100044)*
Format 880×1230
X Number of characters xXX,XXx
Sheet X/X
Xth printing in XX month, 19XX
Xth edition in XX month, 19XX
Number of prints 1-XXX
Price XXXXX Yuan
XX-XXX
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