This standard specifies the characteristics and dimensions of outer spherical ball bearings and eccentric sleeves. This standard is applicable to the design of manufacturers and the selection of users. GB/T 3882-1995 Rolling bearings, outer spherical ball bearings and eccentric sleeves, dimensions GB/T3882-1995 Standard download decompression password: www.bzxz.net

GB/T3882--1995
This standard is a revision of GB3882-87. This standard adopts ISO9628:1992 "Rolling bearings - outer spherical bearings and eccentric sleeves" in a non-equivalent manner.
The structural type and size series of outer spherical ball bearings specified in this standard exceed the scope specified in ISO9628:1992. The bearing characteristics, two fastening methods of using top screws and eccentric sleeves on the inner ring, and the metric dimensions of these two structures and eccentric sleeves specified in ISO9628:1992 are adopted in this standard.
This standard replaces the codes used in the original standard with the codes specified in JB/T6640-1993 "Code Method for Outer Spherical Ball Bearings with Housings".
This standard replaces GB3882-87 from the date of entry into force. This standard is proposed by the Ministry of Machinery Industry of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Standardization of Rolling Bearings. This standard was drafted by: Luoyang Bearing Research Institute, Ministry of Machinery Industry. The main drafter of this standard: Ma Suqing.
This standard was first issued in 1983 and revised for the first time in 1987. 188
1 Scope
National Standard of the People's Republic of China
Rolling bearings
External spherical ball bearings and eccentric sleeves
Boundary dimensions
Kolling hearings-
Insert bearings and eccentric looking collars -- Boundary dimensions
GB/T 3882 -- 1995
neq Is0 9620 .1992
Replaces GB 388287
This standard specifies the characteristics and external dimensions of external spherical ball bearings (hereinafter referred to as bearings) and eccentric sleeves. This standard is applicable to manufacturer design and user selection. Note 1: Spherical bearings are defined as radial rolling bearings with spherical outer rings and wide inner rings with fastening devices (see GB6930). The fastening device that fixes the inner ring to the shaft can be an eccentric sleeve, a clamp sleeve, or a top screw directly on the inner ring. 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. When this standard is published, the versions shown are all valid. All standards are subject to revision. Parties using this standard should explore the possibility of using the latest versions of the following standards GB273.3-88 Rolling bearings Radial bearings Dimensions GB6930-86 Rolling bearing vocabulary
GB9160.1--88 Rolling bearing accessories Adapter sleeve basic dimensions 3 Definitions
This standard adopts the definitions of outer spherical ball bearings given in (GB6930. 4 Symbols (see Figures 1 to 5)
Note 2: Unless otherwise specified, the symbols shown in the figures and the symbols given in the tables represent only nominal dimensions, A: Width of the inner ring eccentric surface || tt||A: Width of eccentric surface of eccentric sleeve
B: Width of inner ring
B: Total width of inner ring with eccentric sleeve
B: Width of eccentric sleeve
B.: Width of adapter sleeve
(: Width of outer ring
(: Distance from the center of outer ring groove to the center of lubrication area Ch: Width of lubrication area
d: Inner diameter of bearing and eccentric sleeve
do: Inner diameter of adapter sleeve
d: Outer diameter of eccentric sleeve
Approved by State Administration of Technical Supervision on December 14, 1995, implemented in 1996-0801
GB/T 3882--1995
d2: Inner diameter of the small end of the eccentric surface of the eccentric sleeve (at the theoretical sharp angle)d3: Diameter of the large end of the eccentric surface of the inner ring (at the theoretical sharp angle)d.: Top screw diameterbZxz.net
d: Inner diameter of the small end of the inner ring tapered hole
D. Bearing outer diameter
G: Distance from the center line of the top screw to the end face of the inner ringH: Eccentricity
r1: Chamfer size of the eccentric surface of the inner ring
risnin: Minimum single chamfer size of the inner ring braided surface r2: fillet radius of the eccentric surface of the inner ring
r2smux: the maximum single fillet radius of the eccentric surface of the inner ringrs: fillet radius of the eccentric surface of the eccentric sleeve
rax: the maximum single fillet radius of the eccentric surface of the eccentric sleever4: chamfer size of the eccentric surface of the eccentric sleeve
r4smin: the minimum single chamfer size of the eccentric surface of the eccentric sleeveS: the distance from the inner circle end face on the side of the fastening device to the center of the racewayS,: the inner ring end face or eccentric sleeve on the same side of the fastening device that limits the total width of the bearing Distance from end face to raceway center 5 Features
5.1 General
When bearings on a shaft are usually mounted on two or more bearing seats, it is not guaranteed that they are all well aligned. However, if the outer ring has a spherical outer surface, then good initial concentricity can be obtained by mounting the bearing in a matching seat ring. The inner hole surface can be electroplated to reduce the degree of rust during operation. 5.2 Inner diameter
For each set of bearings or eccentric sleeve sizes, there is a corresponding The inner diameter size is in mm. Unlike the actual application of general rolling bearings, the inner diameter tolerance is a "positive" tolerance so that the bearing and eccentric sleeve can slide on the standard shaft. The inner diameter and outer diameter of the 2 series bearings (except for those less than 40 mm, which are all 40 mm) comply with the diameter series 2 of GB273.3, and the inner diameter and outer diameter of the 3 series bearings comply with the diameter series 3 of GB273.3. 5.3 Inner ring width and fastening device
The inner ring width does not comply with the provisions of GB273.3. The determination of the inner ring width should take into account the space requirements for sealing and fastening devices in various application occasions and the need for axial extension of the shaft support. If the axial extension of the fastening device exceeds the inner ring, then the width including the fastening device is called the total width. The relative position of the end face limiting the total width and the center line of the outer ring is an important dimension. Therefore, it is stipulated that in this standard, each figure of Figure 1 and Figure 5 only shows an example of a fastening device.
5.4 Width of outer ring
For spherical outer ring bearings, if the outer ring width range is known, then the assembly groove size of the bearing seat can be correctly given, and the width of the outer ring is not important. Therefore, this standard specifies the width range of the outer ring, that is, the minimum width value that meets the 02 series in GB273.3 and the maximum width value required to provide sufficient space for various sealing devices and lubrication holes. 5.5 Relubrication
The bearing can decide whether to take relubrication measures according to the actual application. When a lubrication device is provided, one or more small through holes with different diameters can be drilled on the outer ring. This standard does not make a rigid provision for the exact structure and position of the relubrication device, but only gives the width and position of the lubrication area where relubrication measures are required, so as to provide relubrication for the bearing on one or both sides of the outer ring. In this way, the lubricant can be smoothly injected into the bearing through the inner hole oil groove covering the entire lubrication area in the bearing seat. 6 Dimensions
6.1 The dimensions of spherical ball bearings with top screws are specified in Tables 1 to 3. UB type
Bearing with top thread
Bearing code
UB 204
2 series
Overall dimensions
M6 ×0.75
Bearing code
UC 201
UC 202
UC 201
UC 205
LC 206
UC 207
UC 208
UC 209
UC 214
UC 215
LC 216
UC 217
Uc 218
Bearing code
UC 308
tic309
UC 313
GB/T 3882--1995
2 Series Dimensions
3 Series
Dimensions
1M6×0.75
[M10×1.25
1M10x1.25
Bearing Code
UC 317
UC 318
GB/T3882
—1995
Table 3 (Complete)
6.2 The outer dimensions of spherical ball bearings with tapered bores and adapter sleeves are specified in Tables 4 and 5. UK type
UK+H type
Tapered hole or auxiliary bearing with tightening sleeve
Bearing code
UK 205+H 2305
UK 206+H 2306
UK207+H2307
UK 208+H 2308
UK 209+H 2309
UK 210→H 2310
UK 211+H 2311
UK 212+H 2312
UK 213+H 2313
UK 215+H 2315
UK 216+H 2316
UK 217+H 2317
UK 218+H 2318
Bearing code
UK305+H2305
UK 306+H 2306
UK 307+H 2307
UK 308-H 2308
UK 309+H 2309
UK 310+H 2310
UK 311--H 2311
UK 312+H 2312
UK 313+H 2313
UK 315+H 2315
UK 316+H 2316
UK 317+H 2317
UK 318+H 2318
UK 319+H 2319
UK 320+H 2320
UK 322+H 2322
UK 324+H 2324
UK 326+H 2326
UK 328+H 2328
GB/T3882--1995
Table 4 UK+H type 2 series overall dimensions
UK+H type
3 series
Overall dimensions
The overall dimensions of spherical ball bearings with eccentric sleeves are specified in Tables 6 to 8. 6.3
Matching part code
Adapter sleeve
UK 205
GB 9160. 1
H 2305
IUK 209
[UK 10
UK 215
UK 218
H 2308
H 2311
Matching part code
[UK305
UK 307
UK 311
『UK 312
Adapter sleeve
GB 9160. 1 -- 88
H 2306
iUK316
UK320l
UK 322
H 2315
Bearing code
UE 204
UE 207
UE 210
UE 211
GB/T3882—1995
Figure 3 Bearing with eccentric sleeve
UEL type
Table 6 UE type 2 series dimensions
Eccentric sleeve code
Bearing code
UEL201
UEL202
UEL 203 | | tt | 214
UEL215
Bearing code
UEL 306
UEL307
UEL308
UEL 309
UEL311
UEL312
UEL316
UEL318
UEL319
GB/T 3882--1995
UEI type
2 series
UEL type
3 series
Overall dimensions
Overall dimensions
Matched core sleeve code
Matched eccentric sleeve code
7 Inner circle eccentricity
7.1 The dimensions of the inner ring eccentric table are specified in Table 9. GB/T3882
Inner ring eccentric table
Table 9UEL, UE type
Inner ring eccentric table size
2 series
d amax
3 series
1)\The minimum cutting angle should not have any metal material exceeding the theoretical radius A of 0.5mm
rranax
GB/T3882---1995
7.2 The external dimensions of the eccentric sleeve are specified in Table 10 and Table 11. Note: The relevant angular positions of the screw holes and the holes on the eccentric sleeve should comply with the regulations of the competent department of the manufacturer. Figure 5 Eccentric sleeve
Eccentric sleeve code
Eccentric sleeve for UEL and UE bearings
2 series
raumin
Overall dimensions
M10x 1.25
M10× 1.25
Eccentric sleeve code
8Marking
Marking example: Rolling bearing
2-1995
GB/T 3882
Eccentric sleeve for UEL bearings
3 series
GB/T3882—1995
Overall dimensions
M101,25
M10×1.25
M16×1,51 -- 88
H 2306
iUK316
UK320l
UK 322
H 2315
Bearing code
UE 204
UE 207
UE 210
UE 211
GB/T3882—1995
Figure 3 Bearing with eccentric sleeve
UEL type
Table 6 UE type 2 series dimensions
Eccentric sleeve code
Bearing code
UEL201
UEL202
UEL 203 | | tt | 214
UEL215
Bearing code
UEL 306
UEL307
UEL308
UEL 309
UEL311
UEL312
UEL316
UEL318
UEL319
GB/T 3882--1995
UEI type
2 series
UEL type
3 series
Overall dimensions
Overall dimensions
Matched core sleeve code
Matched eccentric sleeve code
7 Inner circle eccentricity
7.1 The dimensions of the inner ring eccentric table are specified in Table 9. GB/T3882
Inner ring eccentric table
Table 9UEL, UE type
Inner ring eccentric table size
2 series
d amax
3 series
1)\The minimum cutting angle should not have any metal material exceeding the theoretical radius A of 0.5mm
rranax
GB/T3882---1995
7.2 The external dimensions of the eccentric sleeve are specified in Table 10 and Table 11. Note: The relevant angular positions of the screw holes and the holes on the eccentric sleeve should comply with the regulations of the competent department of the manufacturer. Figure 5 Eccentric sleeve
Eccentric sleeve code
Eccentric sleeve for UEL and UE bearings
2 series
raumin
Overall dimensions
M10x 1.25
M10× 1.25
Eccentric sleeve code
8Marking
Marking example: Rolling bearing
2-1995
GB/T 3882
Eccentric sleeve for UEL bearings
3 series
GB/T3882—1995
Overall dimensions
M101,25
M10×1.25
M16×1,51 -- 88
H 2306
iUK316
UK320l
UK 322
H 2315
Bearing code
UE 204
UE 207
UE 210
UE 211
GB/T3882—1995
Figure 3 Bearing with eccentric sleeve
UEL type
Table 6 UE type 2 series dimensions
Eccentric sleeve code
Bearing code
UEL201
UEL202
UEL 203 | | tt | 214
UEL215
Bearing code
UEL 306
UEL307
UEL308
UEL 309
UEL311
UEL312
UEL316
UEL318
UEL319
GB/T 3882--1995
UEI type
2 series
UEL type
3 series
Overall dimensions
Overall dimensions
Matched core sleeve code
Matched eccentric sleeve code
7 Inner circle eccentricity
7.1 The dimensions of the inner ring eccentric table are specified in Table 9. GB/T3882
Inner ring eccentric table
Table 9UEL, UE type
Inner ring eccentric table size
2 series
d amax
3 series
1)\The minimum cutting angle should not have any metal material exceeding the theoretical radius A of 0.5mm
rranax
GB/T3882---1995
7.2 The external dimensions of the eccentric sleeve are specified in Table 10 and Table 11. Note: The relevant angular positions of the screw holes and the holes on the eccentric sleeve should comply with the regulations of the competent department of the manufacturer. Figure 5 Eccentric sleeve
Eccentric sleeve code
Eccentric sleeve for UEL and UE bearings
2 series
raumin
Overall dimensions
M10x 1.25
M10× 1.25
Eccentric sleeve code
8Marking
Marking example: Rolling bearing
2-1995
GB/T 3882
Eccentric sleeve for UEL bearings
3 series
GB/T3882—1995
Overall dimensions
M101,25
M10×1.25
M16×1,5
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.