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GB/T 3882-2017: Rolling bearings -- Insert bearings and eccentric looking collars -- Boundary dimensions
Status: Valid GB/T 3882: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 3882-2017 | English | 459 |
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Rolling bearings -- Insert bearings and eccentric looking collars -- Boundary dimensions
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GB/T 3882-2017
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| GB/T 3882-1995 | English | 479 |
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Rolling bearings. Insert bearings and eccentric looking collars. Boundary dimensions
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GB/T 3882-1995
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| GB 3882-1987 | English | RFQ |
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Insert bearings and eccentric locking collars--Boundary dimensions
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GB 3882-1987
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PDF similar to GB/T 3882-2017
Basic data | Standard ID | GB/T 3882-2017 (GB/T3882-2017) | | Description (Translated English) | Rolling bearings -- Insert bearings and eccentric looking collars -- Boundary dimensions | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J11 | | Classification of International Standard | 21.100.20 | | Word Count Estimation | 23,277 | | Date of Issue | 2017-05-12 | | Date of Implementation | 2017-12-01 | | Older Standard (superseded by this standard) | GB/T 3882-1995 | | Quoted Standard | GB/T 273.3; GB/T 4199; GB/T 6930; GB/T 7811; GB/T 27554 | | Adopted Standard | ISO 9628-2006, NEQ | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the characteristics and dimensions of spherical ball bearings (hereinafter referred to as bearings) and eccentric sleeves. This standard applies to the design and selection of bearings. | Standard similar to GB/T 3882-2017 GB/T 5859 GB/T 4663 GB/T 4661 GB/T 6930 GB/T 3882-2017: Rolling bearings -- Insert bearings and eccentric looking collars -- Boundary dimensions
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Rolling bearings -- Insert bearings and eccentric looking collars -- Boundary dimensions
ICS 21.100.20
J11
National Standards of People's Republic of China
Replace GB/T 3882-1995
Rolling bearing outer spherical ball bearings and eccentric sleeves
Dimensions
(ISO 9628.2006, Rollingbearings-Insertbearingsandeccentric
Released on.2017-05-12
2017-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 3882-1995 "Rolling bearing outer spherical ball bearings and eccentric sleeve dimensions", and GB/T 3882-
Compared with.1995, the main technical changes are as follows.
--- Added and revised some normative references (see Chapter 2, Chapter 2 of the.1995 edition);
--- Revised the definition of the term "outer spherical bearing" (see Chapter 3, Chapter 3 of the.1995 edition);
--- Modified the font and part of the symbol (see Chapter 4, Chapter 4 of the.1995 edition);
--- Revised the description of the characteristics of the outer spherical ball bearing (see Chapter 5, Chapter 5 of the.1995 edition);
--- Added "code" chapter, "marking example" chapter (see Chapter 6, Chapter 7);
--- Increased the model and dimensions of the inch diameter outer spherical ball bearings and eccentric sleeves (see Table 1 to Table 11);
--- Expanded the size range of eccentric spherical ball bearings and modified some dimensions (see Table 1 ~ Table 3,.1995 edition)
Table 6~Table 8);
--- Revised the part of the outer diameter of the outer spherical ball bearing (see Table 4 ~ Table 6,.1995 version of Table 1 ~ Table 3);
---Modified the partial dimensions of the tapered bore and the outer spherical ball bearing with the adapter sleeve (see Table 7, Table 8, Table 4 of the.1995 edition,
table 5);
--- Expanded the size range of the inner ring eccentric table, and modified some of the external dimensions (see Table 9, Table 9 of the.1995 version);
--- Expanded the size range of the eccentric sleeve and modified the partial eccentric sleeve size (see Table 10, Table 11, Table 5 of the.1995 edition,
Table 11);
--- Revised the size of the lubrication area of the outer spherical ball bearing (see Table 1 to Table 8, Tables 1 to 8 of the.1995 edition).
This standard uses the redrafting method with reference to ISO 9628.2006 "Rolling bearing outer spherical ball bearings and eccentric sleeves.
Differences and ISO 9628.2006/Amd.1.2011 "Diameter Series 3", with ISO 9628.2006 and ISO 9628.2006/Amd.1.
The degree of consistency in.2011 is non-equivalent.
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Rolling Bearing Standardization Technical Committee (SAC/TC98).
This standard was drafted. Luoyang Bearing Research Institute Co., Ltd., Zhejiang Xinchang Peel Bearing Co., Ltd., Dongguan TR Bearing Co., Ltd.
Division, Fanke Bearing Group Co., Ltd., Fujian Fushan Bearing Co., Ltd., Fujian Yongan Bearing Co., Ltd.
The main drafters of this standard. Ma Suqing, Gu Xianbing, Lu Shaoxian, Huo Zhiqiang, Yu Liming, Yang Changzhou.
The previous versions of the standards replaced by this standard are.
---GB 3882.1~3882.3-1983;
---GB 3882-1987, GB/T 3882-1995.
Rolling bearing outer spherical ball bearings and eccentric sleeves
Dimensions
1 Scope
This standard specifies the characteristics and dimensions of the outer spherical ball bearings (hereinafter referred to as bearings) and eccentric bushings.
This standard applies to the design and selection of bearings.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 273.3 Rolling bearings - Overall dimensions - Part 3. Radial bearings
GB/T 4199 rolling bearing tolerance definition
GB/T 6930 rolling bearing vocabulary
GB/T 7811 rolling bearing parameter symbol
GB/T 27554 rolling bearing with seat ball bearing code method
3 Terms and definitions
The following terms and definitions as defined in GB/T 4199 and GB/T 6930 apply to this document.
3.1
Spherical ball bearing insertbearing
A radial rolling bearing with a spherical outer ring and a wide inner ring with fastening means.
Note. The fastening device is to fix the inner ring to the shaft. It can be eccentric sleeve or tight sleeve, or the top wire can be directly used on the inner ring.
4 symbol
The symbols given in GB/T 7811 and the following symbols apply to this document.
Unless otherwise stated, the symbols shown in Figures 1 through 8 (except for tolerance symbols) and the values listed in Tables 1 through 11 represent nominal dimensions.
Note. Figures 1 to 8 are only schematic views, and the cage is not shown.
A. inner circle eccentric width
A1. eccentric width of the eccentric sleeve
B. inner ring width
B1. total width of inner ring with eccentric sleeve
B2. eccentric sleeve width
B3. Adapter sleeve width
C. outer ring width
C1. distance from the center of the outer ring to the center of the lubrication zone
C2. width of the lubrication zone
D. bearing outer diameter
d. bearing and eccentric sleeve inner diameter
Ds. top wire diameter
Dz. inner ring cone small end diameter
D0. adapter sleeve inner diameter
D1. eccentric outer diameter
D2. eccentric sleeve eccentric small end diameter (at the theoretical sharp corner)
D3. big end diameter of the inner circle eccentric surface (at the theoretical sharp corner)
H. eccentricity of inner ring eccentric and eccentric sleeve
R1. inner circle eccentric chamfer size
R1smin. minimum single chamfer size of the inner circle eccentric surface
R2. inner circle eccentric surface fillet radius
R2smax. maximum single corner radius of the inner circle eccentric surface
R3. eccentric sleeve eccentric surface fillet radius
R3smax. eccentric sleeve eccentric surface maximum single fillet radius
R4. eccentric sleeve eccentric chamfer size
R4smin. eccentric sleeve eccentric surface minimum single chamfer size
S. the distance from the end face of the inner end of the fastening device to the center of the raceway
S1. the same end of the fastening device, the inner ring end face of the total width of the bearing or the distance from the end face of the eccentric sleeve to the center of the raceway
Fig.1 Outer spherical ball bearing with eccentric sleeve (UEL type) Fig. 2 Lightweight eccentric spherical ball bearing with eccentric sleeve (UE type)
Fig. 3 Outer wire outer spherical ball bearing (UC type) Fig. 4 One end flat head with top outer spherical ball bearing (UB type)
Fig. 5 Outer spherical ball bearing with tapered bore (UK type) Fig. 6 Outer spherical ball bearing with adapter sleeve (UK H type)
Figure 7 inner circle eccentric
Note. The relative angular position and offset of the eccentric sleeve and the blind hole can be selected as needed.
Figure 8 eccentric sleeve
5 characteristics
5.1 General
Usually, when a bearing on one shaft is mounted on two or more bearing blocks, it is not guaranteed that they are well centered. But if the outer ring has
The spherical outer surface allows the bearing to be mounted in a matching spherical seat hole to adjust the fixed angular deviation.
The bearing ring and the eccentric sleeve can be surface treated to reduce the degree of corrosion during operation.
5.2 inner diameter
For each set of bearings or eccentric bores, there is usually one metric and several inch inner diameters. Tables 1, 3, and
The inch diameter models in parentheses in Table 4.
Unlike the practical application of general rolling bearings, the inner diameter tolerance of the inner ring is “positive” deviation, which makes it easy to fit the bearing and the eccentric to the standard.
On the shaft.
5.3 bearing outer diameter
The outer diameter of the 2 series bearing (corresponding to the metric inner diameter, except 40mm except 40mm) meets the diameter in GB/T 273.3
Series 2; 3 series bearings have an outer diameter that conforms to the diameter series 3 of GB/T 273.3.
5.4 Width of inner ring and fastening device
The inner ring width (corresponding to the metric inner diameter) does not comply with the requirements of diameter series 2 and 3 in GB/T 273.3. Determination of the width of the inner ring, should
Consider the space requirements for sealing and fastening devices for a variety of different applications, as well as the need for axial elongation of the shaft support.
If the fastening device extends axially beyond the inner ring, the width including the fastening device is referred to as the total width. Limit one of the total width
The relative position of the center line of the end and the outer ring is an important size, and each of Figs. 1 to 6 in this standard only shows an example of the fastening device.
5.5 Width of the outer ring
For bearings with a spherical outer surface, the width of the outer ring is not important, as long as the range of the outer ring width is specified, it can be correctly determined.
The size of the housing mounting groove. Therefore, this standard specifies the width range of the outer ring, that is, from the diameter series 2 and GB/T 273.3
The minimum width value of 3 is the m......
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