JB/T 7751-2005Rolling bearings - Thrust tapered roller bearings (English PDF)
滚动轴承 推力圆锥滚子轴承
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
September 23, 2005
Implementation date
January 1, 2006
Scope
JB/T 7751-2005 is the English-translated version of 滚动轴承 推力圆锥滚子轴承.
JB/T 7751-2005 is the Chinese standard "Rolling bearings - Thrust tapered roller bearings".
Its scope clause reads: This standard specifies the technical requirements, measuring methods, inspection rules, marking and packaging of thrust tapered roller bearing whose inside diameter d is less than or equal to 1250mm and boundary dimension meets the requirements of GB/T 273.2-1998.
This standard is applicable to manufacture, inspection and acceptance of thrust tapered roller bearing. Its clauses include symbols (see figures 1~3); technical requirements.
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Document preview — JB/T 7751-2005
National Standard of the People's Republic of China
- Replacing
- JB/T 7751-1995
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- Contents
- Foreword I
- 1 Scope
- 2 Normative References
- 3 Symbols (see Figures 1~3)
- 4 Technical Requirements
- 5 Measuring Methods
- 6 Inspection Rules
- 7 Marking
- 8 Packaging
- Figure 1 Thrust Roller Bearing
- Figure 2 Shaft Washer
- Figure 3 Housing Washer
- Table 1 Tolerance of Shaft washer
- Table 2 Tolerance of Housing Washer
- Table 3 Height Tolerance
- Table 4 Surface Roughness Ra
1 Scope
This standard specifies the technical requirements, measuring methods, inspection rules, marking and packaging of thrust tapered roller bearing whose inside diameter d is less than or equal to 1250mm and boundary dimension meets the requirements of GB/T 273.2-1998.
This standard is applicable to manufacture, inspection and acceptance of thrust tapered roller bearing.
2 Normative References
The following standards contain provisions which, through reference in this standard, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding corrigenda), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this standard are encouraged to study whether the latest edition of these documents is applicable. For undated references, the latest edition of the normative document applies.
GB/T 273.2-1998 Rolling Bearings - Thrust Bearings - Boundary Dimensions - General Plan (eqv ISO 104, 1994)
GB/T 274-2000 Rolling Bearings - Chamfer Dimension - Maximum Values (idt ISO 582: 1995)
GB/T 307.2-2005 Rolling Bearings - Measuring and Gauging Principles and Methods (ISO 1132-2: 2001, Rolling Bearings - Tolerances - Part 2: Measuring and Gauging Principles and Methods, MOD)
GB/T 4199-2003 Rolling Bearings - Tolerances - Definitions (ISO 1132-1: 2000, Rolling Bearings - Tolerances-Part 1: Terms and Definitions, MOD)
GB/T 8597-2003 Rolling Bearings - Rust Proof Packaging
GB/T 18254-2002 High-carbon Chromium Bearing Steel
JB/T 1255-2001 Specification for Heat-treatment of Rolling Bearing Parts Made from High Carbon Chromium Steel
JB/T 3574-1997 Rolling Bearings - Marking for Products
JB/T 6641-1993 Rolling Bearings - Residual Magnetism and Its Assessment Method
JB/T 7051-1993 Rolling Bearing Parts - Methods for the Measurement and Assessment of Surface Roughness
JB/T 8196-1996 Rolling Bearings - Residual Magnetism and Its Assessment Method
JB/T 8921-1999 Rolling Bearings and Commercial Parts - Inspection Rules
3 Symbols (see Figures 1~3)
Except the following symbols, the definition of symbols quoted in this standard is in accordance with the requirements of GB/T 4199.
delta(180°-2beta): deviation for tapered angle of shaft washer raceway of thrust tapered roller bearing
delta(180°-2alpha): deviation for tapered angle of housing washer raceway of thrust tapered roller bearing
Figure 1 Thrust Roller Bearing
Figure 2 Shaft Washer
Figure 3 Housing Washer
4 Technical Requirements
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of JB/T 7751
| Edition | Title | Revision | Status |
|---|---|---|---|
| JB/T 7751-2005 | Rolling bearings - Thrust tapered roller bearings | current edition | Current |
| JB/T 7751-1995 | Rolling bearings - Thrust tapered roller bearings | previous edition | Superseded |
This page sells the current edition, JB/T 7751-2005. Earlier editions are listed for reference only.
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