Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 7809-1995 Rolling bearings—Housings for insert bearings—Boundary dimensions and the following main technical changes have been made with respect to GB/T 7809-1995:
——Some normative references are added and modified (see Clause 2 hereof; Clause 2 of Edition 1995);
——The font of the symbol is modified (see Clause 4 hereof; Clause 4 of Edition 1995);
——The clauses “Code” and “Designation example” are added (see Clauses 5 and 6 hereof);
——Upper width limit N for bolt hole of cast plummer block housing——Series 2 is modified (see Table 1 hereof, Table 1 of Edition 1995);
——The boundary dimensions for cast plummer block housing——Series 3 are modified and moved to the main part of the standard (see Table 2 hereof, Annex A of Edition 1995);
——Upper width limit N for cast housing, square——Series 2 is modified (see Table 3 hereof, Table 2 of Edition 1995);
——The boundary dimensions for cast housing, square——series 3 are modified and moved to the main part of the standard (see Table 4 hereof, Annex B of Edition 1995);
——Upper width limit N for bolt hole of cast housing, oval——series 2 is modified and the size range is expanded (see Table 5 hereof, Table 3 of Edition 1995);
——The boundary dimensions for cast oval housing ——Series 3 are modified and moved to the main text of the standard (see Table 6 hereof, Annex C of Edition 1995);
——The model of cast take-up housings, the lower limit of locating slot width A1 of cast take-up housings——Series 2 are modified and the dimension range is expanded (see Table 7 hereof, Table 6 of Edition 1995);
——The boundary dimensions for cast oval housing, ——Series 3 are modified and moved to the main text of the standard (see Table 8 hereof, Annex D of Edition 1995);
——The dimension range for pressed oval housing, ——Series 2 is expanded (see Table 10 hereof, Table 5 of Edition 1995);
——The boundary dimensions of F200 cast square housing are added (see Annex A);
——The boundary dimensions of FL200 cast oval housing are added (see Annex B);
——The size range of cast ring housing——Series 2 is expanded (see Annex D hereof, Annex F of Edition 1995).
This standard is redrafted by reference to, but is not equivalent to ISO 3228: 2013 Rolling bearings—Cast and pressed housings for insert bearings—Boundary dimensions and tolerances.
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Technical Committee on Rolling Bearing of Standardization Administration of China (SAT/TC 98).
The previous editions of this standard are as follows:
——GB 7809-1987, GB/T7809-1995.
Rolling bearings—
Housings for insert bearings—Boundary dimensions
1 Scope
This standard specifies boundary dimensions for cast and pressed housings for insert bearings for which boundary dimensions are given in GB/T 3882.
It applies to plummer block housings, flanged housings, take-up housings and ring housings.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 3882 Rolling bearings—Insert bearings and eccentric looking collars—Boundary dimensions
GB/T 6930 Rolling bearings— Vocabulary
GB/T 7811 Rolling bearings—Symbols for physical quantities
GB/T 27554 Rolling bearings—Insert bearing units—Identification code
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 6930 apply.
4 Symbols
4.1 General
For the purposes of this document, the symbols given in GB/T 7811 and those in 4.2 to 4.7 apply.
The symbols (except those for tolerances) shown in Figures 1 to 6 and the values given in Tables 1 to 10 denote nominal dimensions unless specified otherwise.
Note: Figures 1 to 6 are drawn schematically and do not necessarily show all design details. The grease nipple positions in Figures 1 to 4 are examples. Other positions are at the discretion of the manufacturer.
4.2 Cast plummer block housing
See Figure 1 and Tables 1 and 2.
A: (overall) width of base
Da: spherical seating diameter of housing
H: distance from mounting base to centreline of spherical seating diameter
H1: height of feet
J: centre distance between bolt holes
L: (overall) length of base
N: width of bolt hole
N1: length of bolt hole
4.3 Cast flanged housing, square
See Figure 2 and Tables 3 and 4.
A: (overall) height
A1: width of flange
A2: distance from mounting base to centreline of spherical seating diameter
Da: spherical seating diameter of housing
J: centre distance between bolt holes
L: (overall) length
N: diameter of bolt hole
4.4 Cast flanged housing, oval
See Figure 3 and Tables 5 and 6.
A: (overall) height
A1: width of flange
A2: distance from mounting base to centreline of spherical seating diameter
Da: spherical seating diameter of housing
H: height of flange
J: centre distance between bolt holes
L: (overall) width
N: diameter of bolt hole
4.5 Cast take-up housing
See Figure 4 and Tables 7 and 8.
A: (overall) width (attachment end)
A1: width of location slot
A2: width of flange in which location slot is provided
Da: spherical seating diameter of housing
H: (overall) height
H1: distance between bottoms of location slots
H2: height (attachment end)
L: (overall) length
L1: distance from attachment end face to centreline of spherical seating diameter
L2: length (attachment end)
L3: length of location slot
N: diameter of attachment hole
N1: length of attachment slot
N2: height of attachment slot
4.6 Pressed plummer block housing
See Figure 5 and Table 9.
A: (overall) width of base
Da: spherical seating diameter of housing
H: distance from mounting base to centreline of spherical seating diameter
H1: height of feet
J: centre distance between bolt holes
L: (overall) length of base
N: diameter of bolt hole
4.7 Pressed flanged housings, round, triangular and oval
See Figure 6 and Table 10.
A: (overall) height
A1: width of flange
Da: spherical seating diameter of housing
H: height (round, triangular, oval housings)
H1: distance from straight edge to centreline of spherical seating diameter (triangular housings)
H2: limit diameter of flat surface
J: pitch circle diameter of bolt holes (round and triangular housings); centre distance between bolt holes (oval housings)
L: (overall) length of flange (oval housings)
N: side dimension of square bolt hole
5 Code
For the purposes of this document, the code given in GB/T 27554 apply.
6 Designation example
Example marking: insert housing P205 GB/T 7809-2017
7 Boundary dimension
7.1 General
It is optional whether there is a relubrication device on the seat. If used, the lubrication zone shall intersect the bearing lubrication zone specified in GB/T 3882, so that lubricant will satisfactorily feed into the bearing lubrication zone through the housing.
Boundary dimensions of housings are given in Tables 1 to 10.
Where “max.” is shown in Tables 1 to 10, this indicates that the value is both the nominal value and the largest actual value permitted. Where “min.” is shown in Tables 1 to 6, this indicates that the value is both the nominal value and the smallest actual value permitted.
7.2 Cast housings
Boundary dimensions for cast housings are given in Tables 1 to 8.
Boundary dimensions for cast housings, square (F200), cast housings, oval (FL200), cast flanged housings, round (FC200) and cast ring housings (C200 and C300) are given in Annexes A to D.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Code
6 Designation example
7 Boundary dimension
Annex A (Normative) Boundary dimensions for cast housings, square (F200)
Annex B (Normative) Boundary dimensions for cast housing, oval (FL200)
Annex C (Normative) Boundary dimensions for cast flanged housings, round
Annex D (Normative) Boundary dimensions for cast ring housings
ICS 21.100.20
J 11
GB
中華人民共和國國家標準
GB/T 7809-2017
代替 GB/T 7809-1995
滾動軸承
外球面球軸承座 外形尺寸
Rolling bearings-Housings for insert bearings-Boundary dimensions
(ISO 3228:2013,Rolling bearings—Cast and pressed housings for
Insert bearings—Boundary dimensions and tolerances,NEQ)
2017-05-12發布 2017-12-01實施
中華人民共和國國家質量監督檢驗檢疫總局
中國國家標準化管理委員會 發布
前言
本標準按照GB/T 1.1-2009給出的規則起草。
本標準代替GB/T 7809-1995《滾動軸承 外球面球軸承座 外形尺寸》,與GB/T 7809-1995相比,主要技術變化如下:
——增加并修改了部分規范性引用文件(見第2章,1995年版的第2章);
——修改了符號的字體(見第4章,1995年版的第4章);
——增加了“代號”章、“標記示例”章(見第5章、第6章);
——修改了2系列鑄造立式座螺栓孔寬度N的上限值(見表1,1995年版的表1);
——修改了3系列鑄造立式座的外形尺寸并移至標準正文中(見表2,1995年版的附錄A);
——修改了2系列鑄造方形座螺栓孔寬度N的上限值(見表3,1995年版的表2);
——修改了3系列鑄造方形座的外形尺寸并移至標準正文中(見表4,1995年版的附錄B);
——修改了2系列鑄造菱形座螺栓孔寬度N的上限值并擴大了尺寸范圍(見表5,1995年版的表3);
——修改了3系列鑄造菱形座的外形尺寸并移至標準正文中(見表6,1995年版的附錄C);
——修改了鑄造滑塊座的型號、2系列鑄造滑塊座定位槽寬度A1的下限值并擴大了尺寸范圍(見表7,1995年版的表6);
——修改了3系列鑄造菱形座的外形尺寸并移至標準正文中(見表8,1995年版的附錄D);
——擴大了2系列沖壓菱形座的尺寸范圍(見表10,1995年版的表5);
——增加了F200型鑄造方形座的外形尺寸(見附錄A);
——增加了FL200型鑄造菱形座的外形尺寸(見附錄B);
——擴大了2系列鑄造環形座的尺寸范圍(見附錄D,1995年版的附錄F)。
本標準使用重新起草法參考ISO3228:2013《滾動軸承 外球面球軸承用鑄造座和沖壓座 外形尺寸和公差》編制,與ISO 3228:2013的一致性程度為非等效。
本標準由中國機械工業聯合會提出。
本標準由全國滾動軸承標準化技術委員會(SAC/TC 98)歸口。
本標準所代替標準的歷次版本發布情況為:
——GB 7809-1987、GB/T7809-1995。
滾動軸承
外球面球軸承座 外形尺寸
1 范圍
本標準規定了外球面球軸承用鑄造座和沖壓座的外形尺寸。外球面球軸承的外形尺寸規定在GB/T 3882中。
本標準適用于立式座、凸緣座、滑塊座和環形座。
2 規范性引用文件
下列文件對于本文件的應用是必不可少的。凡是注日期的引用文件,僅注日期的版本適用于本文件。凡是不注日期的引用文件,其最新版本(包括所有的修改單)適用于本文件。
GB/T 3882 滾動軸承 外球面球軸承和偏心套 外形尺寸
GB/T 6930 滾動軸承 詞匯
GB/T 7811 滾動軸承 參數符號
GB/T 27554 滾動軸承 帶座外球面球軸承 代號方法
3 術語和定義
GB/T 6930界定的術語和定義適用于本文件。
4 符號
4.1 總則
GB/T 7811給出的以及4.2~4.7規定的符號適用于本文件。
除另有說明外,圖1~圖6中所示符號(公差符號除外)和表1~表10中所列數值均表示公稱尺寸。
注:圖1~圖6僅為示意圖,未顯示出所有結構細節。圖1~圖4中給出的潤滑嘴的位置只是一種示例,制造商也可采用其他位置。
4.2 鑄造立式座
見圖1和表1、表2。
A:座底寬度(總寬)
Da:軸承座球面直徑
H:安裝平面到球面直徑中心線的距離
H1:座底高度
J:螺栓孔中心距
L:座底長度(總長)
N:螺栓孔寬度
N1:螺栓孔長度
4.3 鑄造凸緣座,方形
見圖2和表3、表4。
A:高度(總高)
A1:凸緣厚度
A2:安裝平面到球面直徑中心線的距離
Da:軸承座球面直徑
J:螺栓孔中心距
L:長度(總長)
N:螺栓孔直徑
4.4 鑄造凸緣座,菱形
見圖3和表5、表6。
A:高度(總高)
A1:凸緣厚度
A2:安裝平面到球面直徑中心線的距離
Da:軸承座球面直徑
H:凸緣長度
J:螺栓孔中心距
L:寬度(總寬)
N:螺栓孔直徑
4.5 鑄造滑塊座
見圖4和表7、表8。
A:寬度(總寬)(連接端)
A1:導向槽寬度
A2:包括導向槽凸緣在內的寬度
Da:軸承座球面直徑
H:高度(總高)
H1:導向槽底部之間的距離
H2:高度(連接端)
L:長度(總長)
L1:連接端面到球面直徑中心線之間的距離
L2:長度(連接端)
L3:導向槽長度
N:連接孔直徑
N1:連接槽長
N2:連接槽高度
4.6 沖壓立式座
見圖5和表9。
A:座底寬度(總寬)
Da:軸承座球面直徑
H:安裝平面到球面直徑中心線的距離
H1:座底高度
J:螺栓孔中心距
L:座底長度(總長)
N:螺栓孔直徑
4.7 沖壓凸緣座,圓形、三角形和菱形
見圖6和表10。
A:高度(總高)
A1:凸緣厚度
Da:軸承座球面直徑
H:長度(圓形、三角形、菱形座)
H1:直邊到球面直徑中心線的距離(三角形座)
H2:平表面處的極限直徑
J:螺栓孔節圓直徑(圓形和三角形座);螺栓孔中心距(菱形座)
L:凸緣寬度(總寬)(菱形座)
N:方孔螺栓邊長
5 代號
GB/T 27554給出的代號適用于本文件。
6 標記示例
標記示例:外球面球軸承座 P205 GB/T 7809-2017
7 外形尺寸
7.1 總則
座上是否具有再潤滑裝置是可以選擇的,如果提供潤滑裝置,該裝置的潤滑區域應與GB/T 3882規定的軸承潤滑區相交,以便潤滑劑通暢地穿過軸承座注入到軸承潤滑區。
軸承座的外形尺寸見表1~表10。
表1~表10中的“max”表示該值既是公稱值,又是允許的最大實測值。表1~表6中的“min”表示該值既是公稱值,又是允許的最小實測值。
7.2 鑄造座
鑄造座的外形尺寸見表1~表8。
鑄造方形座(F200型)、鑄造菱形座(FL200型)、鑄造凸臺圓形座(FC200型)和鑄造環形座(C200型、C300型)的外形尺寸見附錄A、附錄B、附錄C、附錄D。
圖1 鑄造立式座
表1 鑄造立式座——2系列 單位為毫米
軸承座型號 Da L A J H H1 N N1
max max max min max min
a 適用于外徑為40 mm的小尺寸外球面軸承。
表2 鑄造立式座——3系列 單位為毫米
軸承座型號 Da L A J H H1 N N1
max max max min max min
圖2 鑄造凸緣座,方形
表3鑄造凸緣座,方形——2系列 單位為毫米
軸承座型號 Da L A J A1 A2 N
max max max min max
a 也可設置成邊長為N的方孔。
圖3 鑄造凸緣座,菱形
表5鑄造凸緣座,菱形——2系列 單位為毫米
軸承座型號 Da H L A J A1 A2 N
max max max max min max
表6 鑄造凸緣座,菱形——3系列 單位為毫米
軸承座型號 Da H L A J A1 A2 N
max max max max min max
圖4 鑄造滑塊座
表7 鑄造滑塊座——2系列 單位為毫米
軸承座型號 Da A A1a A2 H H1 H2 L L1 L2 L3 N N1 N2
max min max max max max max max min max min min min
a 連接部分的尺寸應符合制造商推薦的值。
表8 鑄造滑塊座——3系列 單位為毫米
軸承座型號 Da A A1a A2 H H1 H2 L L1 L2 L3 N N1 N2
max min max max max max max max min max min min min
a 連接部分的尺寸應符合制造商推薦的值。
7.3 沖壓座
沖壓座的外形尺寸見表9、表10。
圖5 沖壓立式座
表9沖壓立式座——2系列 單位為毫米
軸承座型號 Da
L A J H H1 N
max max max
a) 圓形 b) 三角形 c) 菱形
說明:
1——平面極限。
a 這些孔可選擇直徑等于N的圓孔。
b Da≥80 mm的軸承座應設置四個螺栓孔。
圖6 沖壓凸緣座,圓形、三角形和菱形
表10 沖壓凸緣座,圓形、三角形和菱形——2系列 單位為毫米
軸承座型號 Da H L A J A1 H1 H2 N
沖壓圓形座 沖壓三角形座 沖壓菱形座 max max max max max max
附錄A
(規范性附錄)
鑄造方形座(F200型)外形尺寸
A.1 符號
鑄造方形座的符號見圖2和表A.1。
A.2 外形尺寸
鑄造方形座(F200型)的外形尺寸見表A.1。
表A.1 鑄造方形座(F200型) 單位為毫米
軸承座型號 Da L A J A1 A2 N
附錄B
(規范性附錄)
鑄造菱形座(FL200型)外形尺寸
B.1 符號
鑄造菱形座的符號見圖3和表B.1。
B.2 外形尺寸
鑄造菱形座(FL200型)的外形尺寸見表B.1。
表B.1 鑄造菱形座(FL200型) 單位為毫米
軸承座型號 Da H L A J A1 A2 N
附錄C
(規范性附錄)
鑄造凸臺圓形座外形尺寸
C.1 符號
鑄造凸臺圓形座的符號見圖C.1和表C.1。
A:寬度
A1:安裝平面到頂面的距離
A2:安裝平面到軸承座球面中心的距離
D1:凸臺直徑
D2:外徑
Da:軸承座球面直徑
H1:凸緣高度
J:螺栓孔中心距
L:凸臺高度
N:螺栓孔直徑
P:螺栓孔節圓直徑
圖C.1 鑄造凸臺圓形座
C.2 外形尺寸
鑄造凸臺圓形座(FC200型)外形尺寸見表C.1。
表C.1 鑄造凸臺圓形座(FC200型) 單位為毫米
軸承座型號 Da D1 L D2 A2 P A H1 N J A1
附錄D
(規范性附錄)
鑄造環形座外形尺寸
D.1 符號
鑄造環形座的符號見圖D.1和表D.1、表D.2。
Da:軸承座球面直徑
D1:外徑
A:寬度
圖D.1 鑄造環形座
D.2 外形尺寸
鑄造環形座(C200型、C300型)外形尺寸見表D.1、表D.2。
表D.1 鑄造環形座(C200型) 單位為毫米
軸承座型號 Da D1 A
表D.2 鑄造環形座(C300型) 單位為毫米
軸承座型號 Da D1 A