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This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces JB/T 5302-2002 Insert bearing units—Supplementary structure—Boundary dimensions and the following main technical changes have been made with respect to JB/T 5302-2002:
——The standard name is modified (see the cover and front page hereof; the cover and front page of Edition 2002);
——The scope is modified (see Clause 1 hereof; Clause 1 of Edition 2002);
——The font of symbols and some definition of the symbols are modified (see clause 4 hereof; clause 3 of Edition 2002);
——The clauses “Terms and definitions” and “Code” are added (see clauses 3 and 5);
——A general for boundary dimensions is added (see 7.1);
——The minimum value of N for highly centered plummer block housings is modified, the maximum value of N is added, and dimension range is expanded (see Table 1 hereof, Table 1 of Edition 2002);
——The dimension range for narrow plummer block housings is expanded (see Table 2 hereof, Table 2 of Edition 2002);
——The value of J value and the minimum value of N for the adjustable oval housings are modified, the maximum value of N is added and the dimension range is expanded (see Table 3 hereof, Table 3 of the Edition 2002);
——The dimension range for suspended housing is expanded (see Table 4 hereof, Table 4 of Edition 2002);
——The maximum boundary dimensions of highly centered plummer block housings, narrow plummer block housings, adjustable oval housing, suspended housing and overhung housing are modified (see Tables 1 to 5 hereof; Tables 1 to 5 of Edition 2002);
——The maximum value of N for the flanged square housing is added (see Table 6);
——Symbols, structural types and boundary dimensions of light oval housings are added (see 4.8, Figure 7 and Table 7);
——"Bibliography" is added (see Bibliography).
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 (SAC/TC 98).
The previous editions of this standard are as follows:
——JB/T 5302-1991, JB/T 5302-2002.
Rolling bearings—Supplementary structure of housings for insert bearings—Boundary dimensions
1 Scope
This standard specifies the structural type and boundary dimensions of cast housings for insert bearings (hereinafter referred to as “bearing housings”) not specified in GB/T 7809-2017.
This standard is applicable to the design and model selection of seven insert bearing housings, including highly centered plummer block housing, narrow plummer block housings, adjustable oval housing, suspended housing, overhung housing, flanged square housing and light oval housing.
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 3882-2017 Rolling bearings—Insert bearings and eccentric locking collars—Boundary dimensions
GB/T 6930-2002 Rolling bearings—Vocabulary
GB/T 7811-2015 Rolling bearings—Symbols for physical quantities
GB/T 27554-2011 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 6930-2002 apply.
4 Symbols
4.1 General
For the purposes of this document, the symbols given in GB/T 7811-2015 and in 4.2 to 4.8 hereof apply.
The symbols (except those for tolerances) shown in Figures 1 to 7 and the values given in Tables 1 to 7 denote nominal dimensions unless specified otherwise.
Note: Figures 1 to 7 are drawn schematically and do not necessarily show all design details. The grease nipple positions in Figures 1 to 7 are examples. Other positions are at the discretion of the manufacturer.
4.2 Highly centered plummer block housings (see Figure 1)
A: (overall) width of base;
Da: spherical seating diameter of housing
H: distance from the mounting base to the center of the spherical diameter;
H0: height of bearing housings;
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 Narrow plummer block housings (see Figure 2)
A: (overall) width of base;
Da: spherical seating diameter of housing;
F: bolt hole depth;
H: distance from the mounting base to the center of the spherical diameter;
H0: height of bearing housings;
H1: height of feet;
J: center distance between bolt holes
L: (overall) length of base;
M: diameter of bolt hole.
4.4 Adjustable oval housings (see Figure 3)
A: (overall) height;
A1: width of flange;
A2: distance from the mounting base to the center of the spherical diameter;
Da: spherical seating diameter of housing;
H: height of flange;
J: center distance between bolt holes;
L: (overall) width;
N: diameter of bolt hole;
P: adjusting arm width;
S: length of bolt hole adjusting groove.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
4.1 General
4.2 Highly centered plummer block housings (see Figure 1)
4.3 Narrow plummer block housings (see Figure 2)
4.4 Adjustable oval housings (see Figure 3)
4.5 Suspended housings (see Figure 4)
4.6 Overhung housings (see Figure 5)
4.7 Flanged square housing (see Figure 6)
4.8 Light oval housing (see Figure 7)
5 Code
6 Designation example
7 Structural type and boundary dimension
7.1 General
7.2 Specific requirements
Bibliography
Figure 1 Highly centered plummer block housings (PH)
Figure 2 Narrow plummer block housings (PA)
Figure 3 Adjustable oval housings (FA)
Figure 4 Suspended housings (FB)
Figure 5 Overhung housings (HA)
Figure 6 Flanged square housings (FS)
Figure 7 Light oval housings (FD)
Table 1 Highly centered plummer block housings—Diameter series
Table 2 Narrow plummer block housings——Diameter series
Table 3 Adjustable oval housings——Diameter series
Table 4 Suspended housings——Diameter series
Table 5 Overhung housings——Diameter series
Table 6 Flanged square housings——Diameter series
Table 7 Light oval housings——Diameter series
ICS 21.100.20
J 11
JB
中華人民共和國機械行業標準
JB/T 5302-2019
代替 JB/T 5302-2002
滾動軸承 外球面球軸承座補充結構外形尺寸
Rolling bearings—Supplementary structure of housings for insert
Bearings—Boundary dimensions
2019-08-02發布 2020-04-01實施
中華人民共和國工業和信息化部 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JB/T 5302-2002《外球面球軸承座 補充結構 外形尺寸》,JB/T 5302-2002相比主要技術變化如下:
——修改了標準的名稱(見封面和首頁,2002年版的封面和首頁);
——修改了范圍(見第1章,2002年版的第1章);
——修改了符號的字體及部分符號的定義(見第4章,2002年版的第3章);
——增加了“術語和定義”“代號”(見第3章、第5章);
——增加了外形尺寸總則(見7.1);
——修改了高中心立式座N的最小值,增加了N的最大值,并擴大了尺寸范圍(見表1,2002年版的表1);
——擴大了窄立式座的尺寸范圍(見表2,2002年版的表2);
——修改了可調菱形座的J值和N的最小值,增加了N的最大值,并擴大了尺寸范圍(見表3,2002年版的表3);
——擴大了懸掛式座的尺寸范圍(見表4,2002年版的表4);
——修改了高中心立式座、窄立式座、可調菱形座、懸掛式座、懸吊式座的最大極限外形尺寸(見表1~表5,2002年版的表1~表5);
——增加了凸臺方形座的N的最大值(見表6);
——增加了輕型菱形座的符號、結構型式和外形尺寸(見4.8、圖7和表7);
——增加了參考文獻(見參考文獻)。
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:
——JB/T 5302-1991、JB/T 5302-2002。
滾動軸承 外球面球軸承座補充結構外形尺寸
1 范圍
本標準規定了GB/T 7809-2017中未規定的外球面球軸承用鑄造軸承座(以下簡稱軸承座)的結構型式及外形尺寸。
本標準適用于高中心立式座、窄立式座、可調菱形座、懸掛式座、懸吊式座、凸臺方形座、輕型菱形座7種結構型式的外球面球軸承座的設計和選型。
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 3882-2017 滾動軸承 外球面球軸承和偏心套 外形尺寸
GB/T 6930-2002 滾動軸承 詞匯
GB/T 7811-2015 滾動軸承 參數符號
GB/T 27554-2011 滾動軸承 帶座外球面球軸承 代號方法
3 術語和定義
GB/T 6930-2002界定的術語和定義適用于本文件。
4 符號
4.1 總則
GB/T 7811-2015和本標準4.2~4.8給出的符號適用于本文件。
除另有說明外,本標準圖1~圖7中所示符號(公差符號除外)和表1~表7中所列數值均表示公稱尺寸。
注:圖1~圖7僅為示意圖,未顯示所有結構細節。圖1~圖7中給出的潤滑嘴的位置只是一種示例,制造廠也可采用其他位置。
4.2 高中心立式座(見圖1)
A:座底寬度(總寬);
Da:軸承座球面直徑;
H:安裝平面到球徑中心的距離;
H0:軸承座高度;
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 窄立式座(見圖2)
A:座底寬度(總寬);
Da:軸承座球面直徑;
F:螺栓孔深度;
H:安裝平面到球徑中心的距離;
H0:軸承座高度;
H1:座底高度;
J:螺栓孔中心距;
L:座底長度(總長);
M:螺孔直徑。
4.4 可調菱形座(見圖3)
A:高度(總高);
A1:凸緣厚度;
A2:安裝平面到球徑中心的距離;
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;
P:調節臂寬度;
S:螺栓孔調節槽長度。
4.5 懸掛式座(見圖4)
A:高度(總高);
A1:凸緣厚度;
A2:安裝平面到球徑中心的距離;
Da:軸承座球面直徑;
H:球徑中心到螺栓孔軸線的垂直方向距離;
H0:凸緣長度;
H1:球徑中心到底座斜坡的垂直方向距離;
J:螺栓孔中心距;
J:螺栓孔之間的距離;
L:寬度(總寬);
N:螺栓孔直徑;
P:凸緣寬度。
4.6 懸吊式座(見圖5)
A:懸吊臂直徑;
C:球徑中心到懸吊螺孔軸線的水平方向距離;
Da:軸承座球面直徑;
F:懸吊螺紋深度;
H:球徑中心到懸吊頂端的距離;
H0:高度(總高);
L:寬度(總寬);
M:懸吊螺孔直徑。
4.7 凸臺方形座(見圖6)
A:高度(總高);
A1:凸緣厚度;
A2:球徑中心到安裝平面的距離;
A3:凸臺高度;
Da:軸承座球面直徑;
D1:凸臺直徑;
J:螺栓孔中心距;
L:長度(總長);
N:螺栓孔直徑。
4.8 輕型菱形座(見圖7)
A:高度(總高);
A2:安裝平面到球徑中心的距離;
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。
5 代號
GB/T 27554-2011給出的代號適用于本文件。
輕型菱形座的結構型式代號為FD,其尺寸系列代號和內徑代號按GB/T 27554-2011的規定。
6 標記示例
外球面球軸承座 PH 205 JB/T 5302-2019
7 結構型式及外形尺寸
7.1 總則
軸承座上可以選擇是否有再潤滑裝置,如果有再潤滑裝置,則該裝置的潤滑區應與GB/T 3882-2017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。
表1~表7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7中的“min”表示該值既是公稱值,又是允許的最小實測值。
7.2 具體要求
高中心立式座、窄立式座、可調菱形座、懸掛式座、懸吊式座、凸臺方形座、輕型菱形座七種軸承座的結構型式分別如圖1~圖7所示,外形尺寸按表1~表7的規定。
圖1 高中心立式座(PH型)
表1 高中心立式座-2系列 單位為毫米
軸承座型號 Da L
max A
max J H H0
max H1
max N N1
min
min max
圖2 窄立式座(PA型)
表2 窄立式座-2系列 單位為毫米
軸承座型號 Da L
max A
max J H H0
max H1
max F 螺紋規格(M)
圖3 可調菱形座(FA型)
表3 可調菱形座-2系列 單位為毫米
軸承座型號 Da J A
max A1
max A2 H
max L
max N P S
min max
圖4 懸掛式座(FB型)
表4 懸掛式座-2系列 單位為毫米
軸承座型號 Da J A
max A1
max A2 H H0
max H1 L
max N J P
圖5 懸吊式座(HA型)
表5 懸吊式座-2系列 單位為毫米
軸承座型號 Da A C F H H0
max L
max 螺紋規格(M)
圖6 凸臺方形座(FS型)
表6 凸臺方形座-3系列 單位為毫米
軸承座型號 Da L
max A
max J A1
max A2 A3 D1 N
min max
圖7 輕型菱形座(FD型)
表7 輕型菱形座2系列 單位為毫米
軸承座型號 Da H
max L
max A
max J A2 N
min max
參考文獻
[1] GB/T 7809-2017 滾動軸承 外球面球軸承座 外形尺寸