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 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
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 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.
Contents of JB/T 5302-2019
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
