JB/T 5312?2001 This standard is a revision of JB/T 5312?1991 "Angular contact ball bearings for automobile clutches". During the revision, a variety of new structures of clutch release bearings and their bearings were added; part of the technical requirements, inspection procedures and test methods were modified and added. This standard specifies the definition, classification, structural type, overall dimensions, technical requirements, inspection rules and test methods of automobile clutch release bearings and their units. This standard applies to bearing manufacturer production inspection and user acceptance. This standard was first released in June 1991, and this is the first revision. JB/T 5312-2001 Automobile clutch release bearing and its unit JB/T5312-2001 Standard download and decompression password: www.bzxz.net

ICS21.100.20
J11
JB
Mechanical Industry Standard of the People's Republic of China
JB/T5312-2001
Automobile clutch release bearing and its unit|| tt||Clutchrelease bearings and units for automobiles2001-05-23 Release
China Machinery Industry Federation
Release
Implementation on 2001-10-01
JB/T 5312 —2001
Foreword
1 Scope
2 Reference standards·
3 Definition
4 Symbols
5 Classification
6 Code method
Structural type and overall dimensions
7
Technical requirements
8
9
Measurement and inspection methods||tt ||10
11
12
Inspection rules-
Mark·
Packaging, transportation and storage
Item||tt| |Appendix A (standard appendix)
Bench simulation life test
Appendix B (standard appendix)
Appendix C (standard appendix)
Appendix D ( Appendix to the prompt)
Determination of the amount of alignment
Determination of the alignment force
Comparison of old and new standard bearing models:
times
3||tt| |·3
13
14
14
15
15
-16
18||tt| | 19 | | tt | | 20 | | tt | | I | Revision of "Ball Bearings". Compared with JB/T5312-1991, this standard has been modified mainly in the following aspects: Added a variety of new structures clutch release bearings and their units - Specified the code method of clutch release bearings and their units: - Modified and added technology For part of the requirements, the measurement and inspection methods have been revised accordingly; - New inspection rules have been added;
- The bench simulation life of the clutch release bearing and its unit, the aligning force and the alignment force of the self-aligning clutch release bearing are specified. Test method for centering volume.
Appendix A, Appendix B and Appendix C of this standard are all appendices of the standard. Appendix D of this standard is a reminder appendix.
This standard replaces JB/T5312-1991 from the date of implementation. This standard is proposed and coordinated by the National Rolling Bearing Standardization Technical Committee. This standard was drafted by: Luoyang Bearing Research Institute, Nanjing Bearing Factory, Xiangyang Automobile Bearing Co., Ltd., Mudanjiang Burrick Metal Products Co., Ltd.
The main drafters of this standard: Song Li, Ni Bohua, Wang Xiurong, Xiao Zhuangyong, Li Jian, Ma Mingjun, Sun Wenling, Xu Hao. This standard was first released in June 1991, and this is the first revision. 1 Scope
Machinery Industry Standard of the People's Republic of China
Automobile clutch release bearings and units
Clutdh releasebearings and units for autamobilesJB/T 5312—2001
Replaces JB/5312— 1991
This standard specifies the definition, classification, structural type, overall dimensions, technical requirements, inspection rules and test methods of automotive clutch release bearings (hereinafter referred to as bearings) and their units. This standard applies to bearing manufacturer production inspection and user acceptance. 2 Referenced standards
The provisions contained in the following standards constitute provisions of this standard by being quoted in this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties using this standard should explore the possibility of using the latest version of the standard listed below. GB/T274—2000
GB/T307.1—1994
GB/T307.2—1995
GB/T 307.3—1996
GB/T5671— 1995
GB/T 8597—1988
JB/T1255—2001
JB/T 3574—1997
JB/T 6641—1993
JB /T7051—1993
JB/T 7361—1994
JB/T 8921—1999
3 definitions
(maximum chamfer size
rolling bearings
Rolling bearings
Tolerances of radial bearings
Principles and methods of measurement and inspection
Rolling bearings
(General technical rules
Rolling bearings|| tt||Automotive general lithium-based grease
Rolling bearing packaging
High carbon chromium bearing steel rolling bearing parts heat treatment technical conditions rolling bearing product mark
rolling bearing
residual magnetism and its evaluation Methods
Measurement and evaluation method of surface roughness of rolling bearing parts Rolling bearings
(Parts hardness test method
Inspection rules for rolling bearings and their commercial parts This standard adopts the following definitions.
3.1 The clutch release bearing dutchrelease bearing acts on the release finger (rod) to separate the clutch. 3.2
Clutch release bearing unit clutdhreleasebearingunit is a device composed of release bearings and release sleeves. 3.3 Non-aligning clutch release bearing. The unit non-aligningclutdh releasebeaing unit does not have the ability to adjust the coaxial rotation performance of the clutch release bearing and the clutch cover assembly. 3.4 Automatically aligning clutch release bearing unit sdf-aligningclutch releasebearing unit China Machinery Industry Federation 2001-05-23 Approved 2001- 10.01 Implementation
1
JB/T5312—2001
Bearing unit with automatic adjustment of coaxial rotation performance of clutch release bearing and clutch cover assembly 3.5 push clutch release bearing push. -styleclutchreleasebearingunit is pushed toward the clutch release finger (rod) to achieve clutch separation (cutting off power). 3.6 Pull-type clutch release bearing draw-styledutchreleasebearingunit is pulled by tension to achieve clutch separation. The bearing is used to achieve clutch separation. Bearing autingrotatingdutchreleasebearing3.7
The outer ring end face is in contact with the clutch release finger (rod) for rotation. 3.8
The inner ring rotating clutch release bearing innerringrotatingclutchreleasebearing is a bearing in which the inner ring end face contacts the clutch release finger (rod) and rotates. The release sleeve releasesleeve
3.9
is a part that covers the tubular extension of the transmission bearing cover and guides the axial movement of the release bearing. 3.10 Aligning force aligningfarce
The starting force that causes the bearing rotation axis to produce relative radial displacement to the unit axis. Alignment amount aligningdisplacement
3.11
The radial movement amount of the bearing from one limit position to another limit position within the unit. 3.12 Bench simulated life testrigsimulatelife simulates the bench test of the clutch release bearing under working conditions. The bearing can achieve the specified number of clutches. The unit is ten thousand times. 3.13 Contact circle diameter contactcirculardiamete The center circle diameter of the contact surface between the ferrule end surface and the separation finger (rod), 3.14 Bearing unit matching width farktofacewidth The axial distance from the working surface of the bearing unit and the shift fork to the unit contact circle. 4 Symbol
This standard uses the following symbols:
d: Bearing nominal inner diameter
d: Bearing unit inner diameter, that is, the inner diameter of the separation sleeve d: Inner ring inner ring rotary bearing inner ring diameter
d: Inner ring rotary bearing inner ring end outer diameter D: Bearing nominal outer diameter
D: Bearing unit radial maximum size
Di: Bearing outer diameter with seal cover
Ds: Outer diameter of outer ring end face
D3: Inner diameter of outer ring
D4: Contact circle diameter
Ds: Diameter of connection groove of pull clutch release bearing unit B: Nominal width of inner ring
Ismin: Minimum one-way chamfer size of bearing
2
T: Nominal width of bearing
△T: Bearing width deviation
T: Bearing unit width
To: Bearing unit fitting width
△To: Bearing unit fitting width deviation
H: Embedding width with shift fork
5 categories| |tt||JB/T
5312—2001
Automobile clutch release bearings and their units are classified as follows according to their working principles, structural types and working performance: Automobile clutch release bearings and their units||tt ||Push type bearings and their units
Bearings
Bearing units
Non-aligning outer ring rotating bearing units
6 code designation methods
pull bearings Unit
Non-aligning bearing unit
Non-aligning inner ring rotating bearing unit
Auto-aligning bearing unit
Auto-aligning bearing unit
Clutch The release bearing and its unit code consists of the contact circle diameter code, type structure code, ferrule material code, inner diameter code, bearing nominal width or bearing unit matching width code and release sleeve material code. The order is shown in Table 1. Table 1
Clutch release bearing and its unit code method Contact circle diameter
Code
6.1
Type structure
Code
Contact circle Diameter code
Ring material
Code
Inner diameter
Code
Bearing nominal width or bearing unit matching width code
Contact circle diameter The designation is expressed in millimeters of contact circle diameter (rounded to the nearest whole number). 6.2 Type structure code
Separation sleeve material
Code
The type structure code consists of capital letters, indicating the contact circle surface shape of the bearing, bearing type, bearing seal type and inner and outer ring structure , the arrangement order is shown in Table 2.
Table 2
Type structure code
Contact circle surface shape code
6.2.1 Contact circle surface shape code
Type code
Sealing type code
The surface shape of the contact circle is a cambered surface, represented by the capital letter R, and the flat surface does not have a code. 6.2.2 Type code
Inner and outer ring structure code
3
JB/T5312—2001
The type code is represented by one or two capital letters, see Table 3. Table 3
Code
T
WT
NT
NL
CT
CL
6.2 .3
Push type clutch release bearing
Including
Non-aligning, push type, outer ring rotating clutch release bearing unit Non-aligning, push type, inner ring rotating clutch The release bearing unit is non-aligning, the pull-type clutch release bearing unit is self-aligning, the push-type clutch release bearing unit is self-aligning, the pull-type clutch release bearing unit seal type code
The seal type code is represented by a capital letter, See Table 4. Table 4 | |tt |
Meaning
Stamped outer cover seal
Rubber sealing ring seal
If the inner and outer rings are both solid machined parts, do not indicate the code number. If there are stamped parts, use capital letters. Represented by the letter Y. 6.3
Ferrule material code
No code is required when the ferrule is made of GCr15. Other materials are represented by the capital letter Q. The inner diameter code
6.4
The bearing inner diameter code is expressed in millimeters of the nominal inner diameter of the bearing (rounded to an integer), and the bearing unit inner diameter code is expressed in millimeters of the inner diameter of the separation sleeve (rounded to an integer). 5 Bearing nominal width, bearing unit fitting width code 6.5
The bearing nominal width code is expressed in millimeters of the bearing's nominal width (rounded to an integer), and the bearing unit fitting width code is expressed in millimeters of the unit fitting width (rounded to an integer) )express. 5 Separation sleeve material code
6.6
The separation sleeve material code is represented by F0, F1, F2 letters and numbers respectively, see Table 5. Table 5
Code
FO
F1
F2
F3
F4
F5
6.7 Example
4
including
meaning
engineering plastics
mild steel
cast iron
cast steel||tt ||Powder metallurgy
Bearing steel
Bearing code
48R
TZ
3816
Bearing unit code
50R
CT33
40F1
7 structural type and overall dimensions
JB/T
5312—2001
The nominal width of the bearing is 16mm| |tt||The inner diameter of the bearing is 38mm
Punched outer cover seal
Push clutch release bearing
The contact circle surface is an arc surface
The contact circle diameter is 48mm||tt ||Mild steel release sleeve
The unit matching width is 40mm
The unit inner diameter is 33mm
The contact circle surface of the automatic aligning push clutch release bearing unit is an arc surface||tt ||The diameter of the contact circle is 50mm
The structural types of the bearings and their units are shown in Figures 1 to 10, and the overall dimensions are shown in Tables 6 to 15. For a comparison of old and new standard bearing models, see Appendix D (Appendix of Prompts).
7.1 Clutch release bearing with flat contact surface 7.1.1TZ型离合器电影图像图像前前型式见图1，图像化学见表6。图1TZ型
5
图度电视
TZ3011
TZ3513||tt| |TZ4014
TZ4514
TZ5014
TZ5516
TZ6016
TZ6516
TZ7019
TZ7519
TZ8019
TZ8522
TZ3016
TZ3517
TZ4018
TZ4519
TZ5019
TZ5522
TZ6022|| tt||TZ6522
TZ7024
TZ7524
TZ8027
TZ8527
d
30
35||tt| |40
45
50
55
60
65
70
75
80
85
30
35
40
45
50
55
60|| tt||65
70
75
80
85
T
11
13||tt| |14
14
14
16wwW.bzxz.Net
16
16
19
19
19
22
16
17
18
19
19
22
22|| tt||22
24
24
27
27
53122001
JB/T
表6| |tt||Dm ax
49
57
64
70
74
82
87|| tt||92
102
107
112
122
57
64
70||tt| |77
82
92
97
102
112
118
128
133
Dmm
41
49
56
62
66
74
79|| tt||84
94
99
104
114
49
56
62||tt| |69
74
84
89
94
104
109
119
124 7.1. 2
6
D
30.5
35.5
405
45.5
505
55.5| |tt||60.5
65.5
70.5
75.5
80.5
85.5
36
41||tt ||46
51
56
63
68
73
78
83
88
93
B
85
105
11
11
11
13| |tt||13
13
15.5
15.5
15.5
185
155
165||tt ||17
18
18
21
21
21
225
225
255
25.5
mm
Tsmin
0.3
0.5
0.5
0.5
0.5| |tt||0.8
0.8
0.8
0.8
0.8
0.8
1
0.3||tt ||0.5
0.5
0.5
0.5
0.8
0.8
0.8
0.8
0.8
0.8
1
3
0.5
0.5
0.5
0.5
0.8
0.8
0.8
0.8| |tt||0.8
0.8
1
3
0.5
0.5
0.5
0.5
0.8
0.8
0.8
0.8| |tt||0.8
0.8
1
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