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
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.
Contents of GB/T 7809-2017
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
