JB/T 3411.120-1999 This standard is a revision of JB 3537-83 "Dimensions of Drill Chuck Extension Rods for Milling Machines". 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 drill chuck extension rods for milling machines. JB/T 3411.120-1999 Dimensions of Drill Chuck Extension Rods for Milling Machines JB/T3411.120-1999 Standard download decompression password: www.bzxz.net

ICS25.080.01
Machinery Industry Standard of the People's Republic of China
JB/T3411.120-1999
Extension rod of drill chuck for
milling machines Dimensions
1999-05-20 Issued
State Bureau of Machinery Industry
Implementation on 2000-01-01
Machinery Industry Standard of the People's Republic of China
Extension rod of dril chuck for milling machine-Dimensions
This standard specifies the types and dimensions of drill chuck extensions for milling machines. 2 Reference standards
JB/T3411.120—1999
Replace JB353783Www.bzxZ.net
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/T4133—1984
Morse taper forced transmission type and size GB/T60901993
3 Type and size
Drill chuck taper
Type and size are as specified in the following figure and table. Morse taper
Approved by the State Machinery Industry Bureau on May 20, 1999, implemented on January 1, 2000
Cone No.
JB/T3411.120-1999
Drill chuck
Short taper No.
1The dimensions and deviations of Morse taper shall comply with the provisions of GBT4133. 2 The dimensions and deviations of the short taper of the drill chuck shall comply with the provisions of GB/T6090 4 Marking
Marking example:
The taper shank is Morse taper No. 3, and the short taper of the drill chuck is D4. The drill chuck connecting rod for milling machines: connecting rod 3-D4: JB/T3411.1201999
Mechanical industry standard
Dimensions of drill chuck connecting rods for milling machines
JB/T3411.120—1999
Ministry of Machinery Industry Machinery Published and distributed by the Institute of Standardization Printed by the Institute of Standardization of the Ministry of Machinery Industry (No. 2, Shouti South Road, Beijing: Postal Code 100044)*
Format 880×1230
X number of characters xXX,XXX
Printed sheets X/X
Xth printing in XX month, 19XX
Xth edition in XX month, 19XX
Number of copies 1-XXX
Price XXXXX Yuan
XX-XXX
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