JB/T 10186-2000 Technical requirements for angular contact ball bearings in rolling bearing sets
Some standard content:
ICS 21.100.Z0
Machinery Industry Standard of the People's Republic of China
JB/T10186-2000
Rolling bearings
Technical conditions for matched angular contact ball bearings
Rolling bearings-Specifications of matchedangular contact ball bearings2000-04-24 Issued
State Administration of Machinery Industry
2000-10-01 Implementation
This standard is formulated for the first time.
Non-standard Appendix A is the appendix to the standard.
Standard Appendix B is the supplementary information
This standard is proposed and managed by the Quantong Bearing Standardization Technical Committee. The original units of this standard are: Yuyang Axis Research Institute, Erbin Bearing Group Co., Ltd. The main drafters of this standard are: Yang Xiaowei, 1 Jilin: Guo Baozang, Zhi Guiping, Shi Pin Machinery Industry Standard of the People's Republic of China
Rolling bearings
Technical conditions for paired angular contact ball bearings
Rolling bearings specifications for paired angular contact ball bearings 1 Scope
This standard defines the technical requirements for paired and multi-threaded angular contact ball bearings (hereinafter referred to as paired bearings), whose external dimensions conform to the requirements of GD/T2925
The standard does not apply to the tertiary inspection and acceptance of paired bearings and the use of the tertiary inspection and acceptance of paired bearings. 2 Referenced 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 valid. All standards will be revised, and the parties using this standard should discuss the possibility of using the latest versions of the following standards. GB/T27 — 1993 | | tt | | GBT 2751993 | | tt | | GA/292:2994 | | tt | tt||JR/T 3034·1993
IB/T 3574—1997
Definition and symbols
Method for designating dynamic bearings
Match of rolling bearings with shafts and housings
Angular contact ball bearings, dimensions of rolling bearings General technical rules for dynamic bearings
Vocabulary of rolling bearings
Parameter symbols of rolling bearings
Supplementary provisions for the designation method of rolling bearings
Rust-proof packaging for rolling bearing oil seals
Product marking of dynamic bearings
In addition to the definitions and symbols listed above, the definitions and symbols adopted in this standard comply with the provisions of GB/T6930 and GD/T71: The average inner diameter difference between individual bearings in thread-matched bearings is D, -.: The average outer diameter difference between individual bearings in assembled bearings is K, X: The inner diameter difference between individual bearings in assembled shafts is K, X: The outer diameter radial runout of individual shafts in assembled shafts is K, X. α: The angle difference between the individual bearings in the assembled bearing, 3: The convex base, that is, after the preload is applied to the shaft, the distance between the inner end face and the convex end face at the same end face of the bearing, when it is out, it is "convex", and when it is introduced, it is "convex". Paper matching surface: The surface of the assembly that points to each other under the cut-off parts. To be able to assemble: It can be assembled in any way such as back-to-back, center-to-center or single-jointed. Clearance: After the needle bearing is assembled, the leather assembly has a certain clearance value, approved by the National Machinery Industry Bureau in 2000-0424
2000-10-0 implementation
Assembly structure type
JT0186—2000
The main structure types of assembled bearings are shown in the figure! As shown, the code method conforms to the provisions of G1272 and F24. As shown in 1, take the 7000D shaft as an example: it is named B70000 or its back is not used. The bearings mentioned above are grouped in the form of structural forms, that is, "O" is regarded as "DB", "X" is regarded as \DF. [e
Teairgit
tetcaitr?
company) in pairs (just
una ten
h)-joint maintenance
oteirr
roreire
national maintenance
oreete
five-joint
figure! Assembled bearings must stand for configuration type
5 technical requirements
[orerte
In addition to meeting the relevant provisions of G island [30.3, assembled bearings must also meet the following technical requirements: 5.! Dimensional small tolerance and rotational accuracy||t t||5.1.1 The tolerance grade of a single bearing in a bearing assembly shall meet the requirements of Grade 5 tolerance for shaft sequence of -15° and -25°; for bearings of , it shall meet the requirements of Grade 5 tolerance or above. 5.1.2 In addition to being manufactured according to the standard tolerance grades 6, 5, 4, and 2, a single bearing in a bearing assembly may also be manufactured according to special tolerances such as 5A, 2A (codenamed P14, P2A, etc.) according to user needs. For the tolerances of 2A and 4A, see Appendix A (Appendix to the Standards). Note: 4A, 24 shaft Other modifications to the bearings are required for production of 4 and 2 grade bearings, JR/TO186-2000
1, the size differences between the individual bearings in the assembled bearings shall comply with the following provisions a) The size difference between the inner diameter and the outer diameter shall not be less than 1 of the inner diameter and outer diameter size tolerance: b) The radial runout difference between the inner and outer rings shall comply with the provisions of 1:) The angle of contact shall be 1 for shafts with a diameter of =15 and =25\, "1; for shafts with a diameter of 40, 1. The radial runout difference of the auxiliary bearings in the assembly is
>18-30
2:40-50
>50-80
B0-120
>120-·1
>150--180
>180-250
250-315
>31a00
Ku,-ka
5,1.1 The width difference of the auxiliary bearing is the width of the bearing in the bearing assembly multiplied by the width of a single bearing Width deviation effect, among which, the width deviation of a single bearing is in the order of 4 Table 2
Table 2 Degree deviation release zone B of a single angular contact ball bearing, ℃ shaft release zone, etc.
218-30
>56-80
-80--126
>120-150
>1,50~1B0
.I: Brown standard
Production
5.1.5 For a single bearing with universal assembly, the width of its inner ring is The relative difference is -C, the special requirements of Table 3, Table 3 universal bearing assembly width difference d
>60F50
-150-250
5.2 Preload, pre-run and protrusion amount
Under the balance difference
, the assembled shaft system is divided into preload state (pre-load) and pre-run (pre-run). The code is in accordance with the provisions of B294, that is,
) load
G) A—light preload
medium two loads
（G）Preload
Note: G can be omitted
JBT10186-2090
that is, the preload value directly after the code 0 (unit is N) Example: Special top-to-bottom special preload, code number is ××x, load 325N, No. 4 is G325,
) Clearance (A——small axial clearance
CR——medium axial clearance
Center—larger axial clearance
Pre-cut axial clearance
5. 2. t. 1
The light, heavy and preload values of matched bearings back to back (DB type) or face to face (F type) are specified in Table 4. Table 4
(3 900C
: 2all
Preload of matched bearings (DB and DF)
B72c52
(H21953A
(B! 700nac:
JBT6-20
5.2.1.2 The preload value of a multi-unit matched bearing consisting of one or more sets of bearings is calculated by multiplying the coefficient specified in Table 5 by the preload coefficient of the seat to the shaft to calculate the DB change!, which is the corresponding preload value. Table 5 Preload coefficient value of matched bearings Matching type
Example: The top load of four sets of matched rail bearings B7006AC/P4QBTA is 1.6×90-144(N)5,2.2 Pre-break
and shaft pre-break of B-series withdrawal bearings (ratio type) Required table 7200R and 7300B series paired bearings axial pre-break CA
>t8-30
>3D-50
>80-12
>120-180
5. 2. 3 Protrusion
The protrusion of the assembled bearing at the assembly end is 5+, (as shown in Figure 2) in accordance with the provisions of Table 7, the protrusion of the assembled bearing at the total assembly end is 12f+a of the value specified in the table?,
>18-30
>30-50
>50- B0
>80-120wwW.bzxz.Net
>120~150
>150-180
>B(-250
5.3 Marking
JB/T1D186-2000
Bottle 78+8
Bearing base grade
In addition to marking in accordance with the provisions of JBT3574 (including the use of chemical method to complete the relevant post-code after the assembly is completed), assembled bearings shall comply with the following marking requirements
5.3.1 Except for universal assembled bearings, in order to facilitate correct installation and use, assembled bearings shall be marked with an angle line (i.e. "V\-shaped line") with an angle of 30±5 on the outer diameter surface of the assembled bearing. The fire of the angle line The angle between the two angles is the direction of force that the inner circle of the assembled bearing can bear the larger draw load, as shown in Figure 3.
5.3.2 The maximum point of the radial vibration of the inner and outer rings of a single bearing in an assembled bearing should be marked on the inner and outer ring end faces respectively, with the symbol "*", as shown in Figure 4. 35
Indication of the line in Figure 3
Indication of the maximum value point and color 0 in Figure 4
.3.3 The average inner diameter and semi-average outer diameter deviation d of a single bearing in an assembled bearing should be marked on the inner and outer ends (unit only), as shown in Figure 4. Universal assembled bearings that are individually packaged should also be marked after the bearing model on the packaging box, for example: 7005C/P4DBA
-2 / -3
5.4 Interchangeability
Except for the double-mounted bearings, the single shaft in other threaded bearings is not interchangeable. 5.5 Others
JB/T t01862000
When there are special requirements for the double-mounted bearing system, the manufacturer can negotiate with the manufacturer to determine. 6 Inspection method
6.1 The contact angle of the assembled bearing, the protrusion of the assembled face end (the two ends of the force assembled bearing) and the axial pre-clearance should be 100% tested. The inspection method shall be in accordance with the regulations of the competent manufacturing department. 6.2 The inspection of other items shall be in accordance with the regulations of GR0T.3: Packaging
The assembled shafts shall be packaged as a whole and placed in the same packaging box. Other requirements for anti-bake packaging shall comply with the provisions of 334.
8 Matching
The matching of bearings with shafts and outer bearings, bearings with grade 6 tolerance shall comply with the provisions of GBT275, and shafts with grade 5 and above tolerances shall comply with Appendix B, JB101B-2900 Appendix A (Standard Appendix) 4A and 2A tolerances A14 The inner and outer tolerance values of grade A tolerance matched bearings are shown in Table AI and Table A2.2 The inner and outer tolerance values of grade 4 tolerance matched bearings are shown in Table A and Table A42.14 Grade A tolerance inner and lower tolerances>18~30>30 -50
>B0~120
120-150
>[BD~250
>30-50
5-80~120
>120-150
>15180||t t||>1S0-250
>250315
≥315-.40K)
>18~30
>30-50
>R0-120
>120--150
1 50-180
1: Deviation
Lower monkey difference
Lower cavity difference
24 grade tolerance outer ring
t deviation
"Lower deviation pad
Table A32A grade tolerance inner circle
Small deviation
-25
One can raise
Towards one axis
.Small difference
Downward installation
>30-50
|>B0--120
>/20-15g
150~-180||tt| |>[BG-250
>210-315
>315~400
1 Recommended tolerance
JB/T10186-200
Table A12A tolerance outer ring
The recommended tolerance is
The recommended tolerance is
F: The recommended tolerance is
Time axis
Internal measurement
JBT016-2000
Appendix B
(This is my time record)
5 The above recommended tolerance is matched with the bearing, shaft and housing The matching of bearings with shafts [steel and outer ring (cast iron or clamp holes] are shown in Table 1 and Table 2 respectively. Table B1: Matching with shaft. The outer ring can be moved between the shaft and the outer ring is fixed with carbon, and the outer ring does not require axial static or dynamic withdrawal. Table B2: Matching with housing holes. Bearing tolerance grades. The form and position tolerances of the matching surfaces of shaft and outer ring and assembled bearings are shown in Table B3.
Surface roughness is shown in Figure B1 and Figure H2 respectively, and its value is listed in FZA-H
Shaft-outer hole geometric tolerance and surface roughness shaft
Position tolerance and surface roughness inspection
Full-motion
Same warehouse
Batch tolerance
(>811-20mm
D>250mm
Bearing tolerance
1 2(2A)
Egg tolerance
2 (2A)3. The average inner diameter and semi-average outer diameter deviation d of a single shaft in a matched bearing. P should be marked on the inner and outer ends (units), as shown in 4. Universal matched bearings packed separately should also be marked after the bearing model on the packing box, for example: 7005C/P4DBA
-2 / -3
5.4 Interchangeability
Except for universal matched bearings, the single shaft in other thread-matched bearings is not interchangeable. 5.5 Others
JB/T t01862000
When there are special requirements for double-matched bearings, the manufacturer can negotiate with the manufacturer to determine. 6.1. The angle of the assembled bearing, the protrusion of the assembled face end (both ends of the assembled bearing) and the axial pre-clearance shall be 100% tested. The testing method shall be in accordance with the regulations of the manufacturing department. 6.2. Other items of testing shall be in accordance with the regulations of GR0T.3: Packaging
Assembled shafts shall be packaged as a whole and placed in the same packaging box. Other requirements for anti-bake packaging shall comply with the regulations of 334.
8. Fit
The fit of the assembled bearing with the shaft and the outer filling shall be in accordance with the regulations of GR0T.3. According to the provisions of BT275, the bearings with tolerances of grade 5 and above are listed in Appendix B, JB101B-2900 Appendix A (Standard Appendix) 4A and 2A tolerances A14 The inner and outer tolerance values of grade A tolerance bearings are shown in Table AI and Table A2.2 The inner and outer tolerance values of grade 4 tolerance bearings are shown in Table A and Table A42.14 Grade A tolerance inner and lower tolerances>18~30>30 -50
>B0~120
120-150
>[BD~250
>30-50
5-80~120
>120-150
>15180
>1S0-250
>250315| |tt||≥315-.40K)
>18~30
>30-50
>R0-120
>120--150
1 50-180
1: Deviation
Lower monkey difference
Lower cavity difference
24 grade tolerance outer ring
t deviation
"Lower deviation pad
Table A32A grade tolerance inner circle
Small deviation
-25
One can raise
Towards one axis
.Small difference
Downward installation
>30-50
|>B0--120
>/20-15g
150~-180||tt| |>[BG-250
>210-315
>315~400
1 Recommended tolerance
JB/T10186-200
Table A12A tolerance outer ring
The recommended tolerance is
The recommended tolerance is
F: The recommended tolerance is
Time axis
Internal measurement
JBT016-2000
Appendix B
(This is my time record)
5 The above recommended tolerance is matched with the bearing, shaft and housing The matching of bearings with shafts [steel and outer ring (cast iron or clamp holes] are shown in Table 1 and Table 2 respectively. Table B1: Matching with shaft. The outer ring can be moved between the shaft and the outer ring is fixed with carbon, and the outer ring does not require axial static or dynamic withdrawal. Table B2: Matching with housing holes. Bearing tolerance grades. The form and position tolerances of the matching surfaces of shaft and outer ring and assembled bearings are shown in Table B3.
Surface roughness is shown in Figure B1 and Figure H2 respectively, and its value is listed in FZA-H
Shaft-outer hole geometric tolerance and surface roughness shaft
Position tolerance and surface roughness inspection
Full-motion
Same warehouse
Batch tolerance
(>811-20mm
D>250mm
Bearing tolerance
1 2(2A)
Egg tolerance
2 (2A)3. The average inner diameter and semi-average outer diameter deviation d of a single shaft in a matched bearing. P should be marked on the inner and outer ends (units), as shown in 4. Universal matched bearings packed separately should also be marked after the bearing model on the packing box, for example: 7005C/P4DBA
-2 / -3
5.4 Interchangeability
Except for universal matched bearings, the single shaft in other thread-matched bearings is not interchangeable. 5.5 Others
JB/T t01862000
When there are special requirements for double-matched bearings, the manufacturer can negotiate with the manufacturer to determine. 6.1. The angle of the assembled bearing, the protrusion of the assembled face end (both ends of the assembled bearing) and the axial pre-clearance shall be 100% tested. The testing method shall be in accordance with the regulations of the manufacturing department. 6.2. Other items of testing shall be in accordance with the regulations of GR0T.3: Packaging
Assembled shafts shall be packaged as a whole and placed in the same packaging box. Other requirements for anti-bake packaging shall comply with the regulations of 334.
8. Fit
The fit of the assembled bearing with the shaft and the outer filling shall be in accordance with the regulations of GR0T.3. According to the provisions of BT275, the bearings with tolerances of grade 5 and above are listed in Appendix B, JB101B-2900 Appendix A (Standard Appendix) 4A and 2A tolerances A14 The inner and outer tolerance values of grade A tolerance bearings are shown in Table AI and Table A2.2 The inner and outer tolerance values of grade 4 tolerance bearings are shown in Table A and Table A42.14 Grade A tolerance inner and lower tolerances>18~30>30 -50
>B0~120
120-150
>[BD~250
>30-50
5-80~120
>120-150
>15180
>1S0-250
>250315| |tt||≥315-.40K)
>18~30
>30-50
>R0-120
>120--150
1 50-180
1: Deviation
Lower monkey difference
Lower cavity difference
24 grade tolerance outer ring
t deviation
"Lower deviation pad
Table A32A grade tolerance inner circle
Small deviation
-25
One can raise
Towards one axis
.Small difference
Downward installation
>30-50
|>B0--120
>/20-15g
150~-180||tt| |>[BG-250
>210-315
>315~400
1 Recommended tolerance
JB/T10186-200
Table A12A tolerance outer ring
The recommended tolerance is
The recommended tolerance is
F: The recommended tolerance is
Time axis
Internal measurement
JBT016-2000
Appendix B
(This is my time record)
5 The above recommended tolerance is matched with the bearing, shaft and housing The matching of bearings with shafts [steel and outer ring (cast iron or clamp holes] are shown in Table 1 and Table 2 respectively. Table B1: Matching with shaft. The outer ring can be moved between the shaft and the outer ring is fixed with carbon, and the outer ring does not require axial static or dynamic withdrawal. Table B2: Matching with housing holes. Bearing tolerance grades. The form and position tolerances of the matching surfaces of shaft and outer ring and assembled bearings are shown in Table B3.
Surface roughness is shown in Figure B1 and Figure H2 respectively, and its value is listed in FZA-H
Shaft-outer hole geometric tolerance and surface roughness shaft
Position tolerance and surface roughness inspection
Full-motion
Same warehouse
Batch tolerance
(>811-20mm
D>250mm
Bearing tolerance
1 2(2A)
Egg tolerance
2 (2A)Appendix B (this is the time record) 5. The above tolerance grades are used for the matching of bearings with shafts and housings. The matching of bearings with shafts and housings [steel and outer (cast iron or clamping holes] will be shown in Table 1 and Table B2 respectively. Table B1 and shaft matching. The outer ring of the rotating shaft can be moved between the shafts. The outer ring does not need to be axially static or static.
Drawer common grade
Table B2 Matching with housing hole
Bearing tolerance grade
Shaft and outer shell and matching bearing surface geometric tolerances, Table B3.
Surface roughness is shown in Figure B1 and Figure H2 respectively, and its value is listed in FZA-H
Shaft-outer hole geometric tolerance and surface roughness shaft
Shaft common grade steaming and surface inspection
All moving
Same transfer
Borrowing tolerance grade
1 2(2A)
Egg tolerance grade
2 (2A)Appendix B (this is the time record) 5. The above tolerance grades are used for the matching of bearings with shafts and housings. The matching of bearings with shafts and housings [steel and outer (cast iron or clamping holes] will be shown in Table 1 and Table B2 respectively. Table B1 and shaft matching. The outer ring of the rotating shaft can be moved between the shafts. The outer ring does not need to be axially static or static.
Drawer common grade
Table B2 Matching with housing hole
Bearing tolerance grade
Shaft and outer shell and matching bearing surface geometric tolerances, Table B3.
Surface roughness is shown in Figure B1 and Figure H2 respectively, and its value is listed in FZA-H
Shaft-outer hole geometric tolerance and surface roughness shaft
Shaft common grade steaming and surface inspection
All moving
Same transfer
Borrowing tolerance grade
1 2(2A)
Egg tolerance grade
2 (2A)
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