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GB/T 1097-2003 English PDF (GBT1097-2003)

GB/T 1097-2003 English PDF (GBT1097-2003)

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GB/T 1097-2003: Square and rectangular keys

This Standard specifies the square and rectangular keys with width of b=8mm~45mm.
GB/T 1097-2003
NATIONAL STANDARD OF THE
PEOPLE REPUBLIC OF CHINA
ICS 21.120.30
J 18
Replacing GB/T 1097-1979
Square and Rectangular Keys
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ISSUED ON: APRIL 29, 2003
IMPLEMENTED ON: DECEMBER 01, 2003
Issued by: General Administration of Quality Supervision, Inspection and Quarantine
Table of Contents
Foreword ... 3
1 Scope ... 4
2 Normative References ... 4
3 Dimension and Tolerance ... 4
4 Technical Conditions ... 6
5 Marking ... 7
Foreword
This Standard revised GB/T 1097-1979 Square and Rectangular Keys ?€? Type and Dimension.
The major differences between GB/T 1097-1979 and this Standard are as follows: --- Modify the standard name from ?€?Square and Rectangular Keys ?€? Type and Dimension?€? to ?€?Square and Rectangular Keys?€?;
--- Change the limit deviation of key width, b, from ?€?h9?€? to ?€?h8?€? in the Table; --- Delete ?€?the weight of square and rectangular key (Type-B) per 1000 pieces kg????€?; add ?€?standard length range?€?;
--- Modify the making example into ?€?GB/T 1097 Key 16??100?€?;
--- Add the marking example of ?€?Type-A square and rectangular key, Type-B square and rectangular key?€?.
This Standard replaced GB/T 1097-1979 since the implementation date.
This Standard was proposed by and under the jurisdiction of National Technical Committee for Standardization of Shafts for Machinery and Accessories.
Drafting organizations of this Standard: Mechanical Engineering Research Institute; Shanghai Qiuming Standard Parts Co., Ltd.; Shijiazhuang Sprocket General Factory; and Beijing Standard Pieces Co., Ltd.
Chief drafting staffs of this Standard: Ming Cuixin, Shen Zhifang, Du Gang, Zhou Yueqiu, and Ding Haijun.
Square and Rectangular Keys
1 Scope
This Standard specifies the square and rectangular keys with width of b=8mm~45mm. 2 Normative References
The provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies.
GB/T 65 Slotted Cheese Head Screws
GB/T 321 Preferred Numbers ?€? Series of Preferred Numbers
GB/T 822 Cheese Head Screws with Cross Recess
GB/T 1095 Square and Rectangular Keyways
GB/T 1568 Technical Specifications for Keys
3 Dimension and Tolerance
The type, dimension and tolerance of square and rectangular keys are shown in Figure 1 and Table 1.

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