This standard is a revision of JB/T 7934-95 "Types and basic parameters of expansion sleeves". During the revision, the types were added, and some calculation formulas and technical contents were adjusted. This standard specifies the types and basic types of Z1~Z20 expansion sleeves. This standard is applicable to expansion sleeves that connect shafts and shafts as parts. This standard was first issued on February 21, 1986 as GB 5867-86 and was adjusted to JB/T 7934-95 in April 1996. JB/T 7934-1999 Types and basic dimensions of expansion sleeves JB/T7934-1999 standard download decompression password: www.bzxz.net

JB/T 7934 1999
This standard is a revision of J13/T7934
Types and basic dimensions.
95 "Expansion coupling sets"
Compared with J13/T793495, the main technical content changes are as follows: ~5 types are added;
Table A5~Table A9 in Appendix A are cancelled:
The formula for calculating the hub outer diameter according to the service limit of the hub material is adopted: Appendix B is changed to Appendix C. Attached requirements (for Z, the connection design points of the expansion coupling sets) This standard replaces J13/T7934:95 from the date of implementation. Appendix A, Appendix B and Appendix C are both informative appendices. This standard was proposed and managed by the Metallurgical Equipment Standardization Technical Committee. The drafting units of this standard are: China Second Heavy Machinery Group Corporation, Deyin Erzhong Basic Parts Factory. The main drafters of this standard are: Zhao Binghou, Zhao Baoyu, Zhao Guangfa. This standard was first issued in February 1986.
1 Scope
Machinery Industry Standards of the People's Republic of China
Expansion Coupling Sleeves
Types and Basic Dimensions
Types This standard specifies the types and basic dimensions of locking assemhlies of Type Z to Type B. This standard applies to locking assemhlies for connecting shafts and parts on shafts. 2 Reference standards
JB/T7934
Replaces JB/T793493
The following standards contain provisions that constitute the provisions of this standard by citing them in this standard. When this standard is published, the versions shown are valid. All standards will be revised. Parties using this standard should explore the possibility of using the latest versions of the following standards. (13/I1031--1995 Surface roughness
Parameters and their values ​​
(G13/T1800.1--1997 Limits and fits G13/1 1800. 2 --1998
Limits and fits
GB/T 1800. 3-- 1998
Limits and fits
Basics Part||: Vocabulary
G13/T3177:1997 Smooth 1. Inspection of component dimensions 3 Classification
3.1 Type
Expansion joints are divided into 20 types, see Table 1. Approved by the State Bureau of Machinery Industry on June 28, 1999 Part 2: Basic provisions for tolerances, deviations and fits Part 3: Table of standard tolerances and basic deviations 20000101 Implementation
Type code
2, Type expansion joint
7. Type expansion joint
2, Type expansion joint
Z. Type expansion joint basic
JB/1 7934 1999
Type code
Z. type expansion joint
Z. type expansion joint
ZA type expansion joint
Z type expansion joint
Z type expansion joint
2. type expansion joint
JB/T7934-1999
Table 1 (continued)
Type code
2. type expansion joint
Z type expansion joint
Z. type expansion joint
JB/T 7934--1999
Table 1 (continued)
Type code
Z1A type expansion joint
Z12 type expansion joint
Z1z-type expansion joint
Zt: type expansion joint
Z. type expansion joint
IB/T 7934- 1999
Table 1 (continued)
Stock No.
Type code
Z1s type expansion joint
Z1 type expansion joint
Z, type expansion jointWww.bzxZ.net
JB/T 7934--. 1999
Table (continued)
Type code
Z-type tightening sleeve
Z1-type expansion sleeve
2.m-type expansion sleeve
Zu-type expansion sleeve
JB/T7934—1999
Table 1 (end)
JB/T 7934 -- 1999
3.2 Basic dimensions
3.2.1Z-type expansion sleeve The basic dimensions shall conform to the provisions of Figure 1 and Table 2. Figure 12-type expansion sleeve
Table 22-type expansion sleeve Basic dimensions
Rated load at 10cN/mm\
Axial force
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