JB/T 3411.108-1999 This standard is a revision of JB 3519-83 "7:24 Taper Intermediate Sleeve Dimensions". 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 contents; - Thread drawing method. This standard is not equivalent to ISO 3936:1993 "Dimensions of internal and external 7/24 taper transition sleeves for face key transmission". This standard specifies the type and size of 7:24 taper intermediate sleeves. JB/T 3411.108-1999 7:24 Taper Intermediate Sleeve Dimensions JB/T3411.108-1999 Standard download decompression password: www.bzxz.net

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Machinery Industry Standard of the People's Republic of China
JB/T3411.108-1999
7:24 Taper Intermediate Bush
Changing diameter bush with 7 : 24 taper-Dimensions
Published on 1999-05-20
National Bureau of Machinery Industry
Implemented on 2000-01-01
Machinery Industry Standard of the People's Republic of China
7:24 Taper Intermediate Bush Dimensions
Changing diameter bush with 7:24 taper-Dimensions
This standard specifies the types and dimensions of 7:24 tapered intermediate bushes. 2 Types and dimensions
Types and dimensions are as specified in the following figures and tables. 7_E24 dough sugar
National Machinery Industry Bureau approved JB/T3411.108-1999 on May 20, 1999
Replaced JB351983
Implementation on January 1, 2000
Cone No.
504069.85
JB/T3411.108-1999
Limit deviation
Difference H12
Limit deviation
Difference H12
Limit deviation
1Z is equal to the maximum allowable deviation between the large end of the cone and the plane passing through the basic diameter D, and applies to both sides of the plane. 2Z is ​​equal to the maximum allowable deviation of the nominal coincidence position of the front face on any side of the front face, the reference plane D 3 mark
Marking example:
Outer cone is 50, inner cone is 40 7:24 cone intermediate sleeve intermediate sleeve 50-40 JB/T3411.108—19992
Mechanical industry standard
7:24 cone intermediate sleeve
JB/T3411.108—1999
Mechanical industry standard Published and distributed 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
Printed sheets X/X
Xth printing in XX month of 19XX
Xth edition in XX month of 19XX
Number of prints 1-XXX
Price XXXX Yuan
XX-XXX
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