GB/T 7810-2017Rolling bearings—Insert bearing units—Boundary dimensions (English PDF)
滚动轴承 带座外球面球轴承 外形尺寸
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
May 12, 2017
Implementation date
December 1, 2017
Scope
GB/T 7810-2017 is the English-translated version of 滚动轴承 带座外球面球轴承 外形尺寸.
GB/T 7810-2017 is the Chinese standard "Rolling bearings—Insert bearing units—Boundary dimensions". Its scope clause reads: This standard specifies the boundary dimensions of insert bearing units (bearing units for short).
It applies to insert bearings with plummer block housings, flanged housings, take-up housings and ring housings. Its clauses include terms and definitions; symbols; types.
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Document preview — GB/T 7810-2017
National Standard of the People's Republic of China
- ICS
- 21.100.20
- Classification
- J 11
- Replacing
- GB/T 7810-1995
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword i
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Symbols
- 5 Types
- 6 Code
- 7 Designation example
- 8 Boundary dimension
- Annex A (Informative) ——Correspondence between insert bearing unit and bearing and bearing housing
- Annex B (Normative) Boundary dimensions of bearings with F200 square housing
- Annex C (Normative) Boundary dimensions of bearings with FL200 oval housing
1 Scope
This standard specifies the boundary dimensions of insert bearing units (bearing units for short).
It applies to insert bearings with 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 7809 Rolling bearings—Insert bearings—Boundary dimensions
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 the following apply.
The symbols shown in Figures 1 to 25 and given in Tables 1 to 15, Table B.1 and Table C.1 denote nominal dimensions, unless specified otherwise.
Note: Figures 1 to 25 are drawn schematically and do not necessarily show all design details. The grease nipple positions in Figures 1 to 17 are examples. Other positions are at the discretion of the manufacturer.
B: width of inner ring of bearing units
B1: overall width of inner ring of bearing units including eccentric locking collar
B3: width of adapter sleeve d: bore diameter of bearing units and of eccentric locking collar d0: bore diameter of adapter sleeve
S: distance from centre of raceway to face of inner ring on side opposite locking device
4.2 Bearings with plummer block housings
A: (overall) width of base
H: distance from mounting base to centreline of spherical seating diameter of housing
J: centre distance between bolt holes
L: (overall) length of base
4.3 Bearings with square housing
A: (overall) height
A2: distance from mounting base to centreline of spherical seating diameter of housing
J: centre distance between bolt holes
L: (overall) length
4.4 Bearings with oval housing
A: (overall) height
A2: distance from mounting base to centreline of spherical seating diameter of housing
H: height of flange
J: centre distance between bolt holes
L: (overall) width
4.5 Bearings with flanged round housings
A: width
A2: distance from mounting base to centreline of spherical seating diameter of housing
D1: boss diameter
D2: outside diameter of housing
J: centre distance between bolt holes
L: boss height
4.6 Bearings with take-up housings
A: (overall) width (attachment end)
A1: width of location slot
H: (overall) height
H1: distance between bottoms of location slots
L: (overall) length
L1: distance from attachment arm end surface to centreline of spherical seating diameter of housing
4.7 Bearings with ring housings
A: width
D1: outside diameter of housing
4.8 Bearings with pressed plummer block housings
A: (overall) width of base
H: distance from mounting base to centreline of spherical seating diameter of housing
J: centre distance between bolt holes
L: (overall) length of base
4.9 Bearings with pressing round housings
A: (overall) height
A1: width of flange
H: length
J: pitch circle diameter of bolt hole
4.10 Bearings with pressed triangular housings
A: (overall) height
A1: width of flange
H: length
H1: distance from straight edge to centreline of spherical seating diameter of housing
J: pitch circle diameter of bolt hole
4.11 Bearings with pressed oval housings
A: (overall) height
A1: width of flange
H: length
J: centre distance between bolt holes
L: (overall) width of flange
5 Types
The bearing units given in this standard is a combination of the insert bearing specified in GB/T 3882 and the housings for insert bearings specified in GB/T 7809. The correspondence between them is shown in Annex A, and the types are as follows:
——Bearings with plummer block housings (see Figures 1 to 3);
——Bearing with square housings (including bearing with F200 square housings) (see Figures 4 to 6);
——Bearing with oval housings (including bearing with FL200 oval housings) (see Figures 7 to 9);
——Flanged round housings (see Figures 10 to 12);
——Bearings with take-up housings (see Figures 13 to 15);
——Bearings with ring housings (see Figures 16 to 17);
——Bearings with pressed plummer block housings (see Figures 18 to 19);
——Bearings with pressed round housings (see Figures 20 to 21);
——Bearings with pressed triangular housings (see Figures 22 to 23);
——Bearings with pressed oval housings (see Figures 24 to 25).
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
Similar standards
Editions of GB/T 7810
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 7810-2017 | Rolling bearings—Insert bearing units—Boundary dimensions | current edition | Current |
| GB/T 7810-1995 | Rolling bearings—Insert bearing units—Boundary dimensions | previous edition | Superseded |
This page sells the current edition, GB/T 7810-2017. Earlier editions are listed for reference only.
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