2025-6-19 18.97.14.83
Code of China Chinese Classification Professional Classification ICS Classification Latest News Value-added Services

Position: Chinese Standard in English/JB/T 2781-2005
JB/T 2781-2005   Rolling bearings - Miniature ball bearings-Specifications (English Version)
Standard No.: JB/T 2781-2005 Status:superseded remind me the status change

Email:

Language:English File Format:PDF
Word Count: 2500 words Price(USD):90.0 remind me the price change

Email:

Implemented on:2006-1-1 Delivery: via email in 1 business day
,,
Standard No.: JB/T 2781-2005
English Name: Rolling bearings - Miniature ball bearings-Specifications
Chinese Name: 滚动轴承 微型球轴承 技术条件
Chinese Classification: J11    Rolling bearing
Professional Classification: JB    Professional Standard - Machinery
ICS Classification: 21.100.20 21.100.20    Rolling bearings 21.100.20
Issued by: NDRC
Issued on: 2005-9-23
Implemented on: 2006-1-1
Status: superseded
Superseded by:JB/T 2781-2015
Superseded on:2016-3-1
Superseding:JB/T 2781-1991
Language: English
File Format: PDF
Word Count: 2500 words
Price(USD): 90.0
Delivery: via email in 1 business day
1. Scope This standard specifies the technical requirements, inspection method, inspection rule, marking and packaging of miniature ball bearings for general purpose with bore diameter of 0.6~10mm and boundary dimensions consistent with GB/T 273.3. This standard is applicable to the deep groove ball bearings and angular contact ball bearings (including bearings with flanged outer rings) of each tolerance grade and the self-aligning ball bearings of Grades 0, 6 and 5. 2. Normative Reference The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), 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 the normative document is applicable. For undated references, the latest edition of the normative document applies. GB/T 273.3-1999 Rolling Bearings - Radial Bearings - Boundary Dimensions - General Plan (eqv ISO 15:1998) GB/T 292-1994 Rolling Bearings - Angular Contact Ball Bearings - Boundary Dimensions GB/T 307.1-2005 Rolling Bearings - Radial Bearings - Tolerances (ISO 492:2002, MOD) GB/T 307.2-2005 Rolling Bearings - Measuring and Gauging Principles and Methods (ISO 1132-2:2001, Roiling Bearings - Tolerances - Part 2: Measuring and Gauging Principles and Methods, MOD) GB/T 307.3-2005 Rolling Bearings - General Technical Regulations GB/T 4604-1993 Rolling Bearings - Radial Internal Clearance (eqv ISO 5753:1991) GB/T 5800-2003 Rolling Bearings - Instrument Precision Bearing (ISO 1224:1984, MOD) GB/T 7218-1995 Rolling Bearings - Miniature Radial Ball Bearings with Flanged Outer Ring - Boundary Dimensions GB/T 7811-1999 Rolling Bearings - Symbols for Quantities GB/T 8597-2003 Rolling Bearings - Rust Proof Packaging GB/T 18254-2002 High-carbon Chromium Bearing Steel BB/T 1255-2001 Specification for Heat-treatment of Rolling Bearing Parts Made from High Carbon Chromium Steel GB/T 3573-2004 Rolling Bearings - Methods for the Measurement of Radial Internal Clearance JB/T 3574-1997 Rolling Bearings - Marking for Products JB/T 5313-2001 Rolling Bearing - Measuring Methods for Vibration (Velocity) JB/T 5314-2002 Rolling Bearing - Measuring Methods for Vibration (Acceleration) JB/T 6641-1993 Rolling Bearings - Residual Magnetism and its Assessment Method JB/T 7047-1999 Rolling Bearings - Specifications of Vibration (Acceleration) for Deep Groove Ball Bearings JB/T 7050-1993 Rolling Bearings - Assessment Methods for Cleanliness JB/T 7752-1995 Sealed Deep Groove Ball Bearings - Specifications JB/T 8571-1997 Rolling Bearings - Sealed Deep Groove Ball Bearings - Performance Test Rule of Dustproofing, Grease Leakage and Temperature Rise JB/T 8921-1999 Rolling Bearings and Commercial Parts - Inspection Rules JB/T 10187-2000 Rolling Bearings - Vibration for Deep Groove Ball Bearings (Velocity) - Specifications
Contents Foreword I 1. Scope 2. Normative Reference 3. Symbols 4. Technical Requirements 4.1 Material and Heat Treatment 4.2 Tolerance 4.3 Internal Clearance and Contact Angle 4.4 Residual Magnetism 4.5 Rotating Flexibility Requirements 4.6 Cleanliness 4.7 Vibration 4.8 Appearance Quality for Finished Product 4.9 Other Technical Requirements 5. Inspection Method 5.1 Measurement for Boundary Dimensions and Rotating Accuracy 5.2 Inspection for Width Deviation △Ts (See Figure 1 and Figure 2) 5.3 Measurement for Radial Internal Clearance 5.4 Measurement of Residual Magnetism 5.5 Rotating Flexibility Inspection 5.6 Cleanliness Inspection 5.7 Vibration Inspection 5.8 Inspection for Assembly Quality and Appearance Quality 5.9 Inspection for Grease Leakage, Temperature Rise and Dust Proof 6. Inspection Rules 7. Marking and Packaging 7.1 Marking 7.2 Rust Proof and Packaging Appendix A (Informative) Radial Internal Clearance Value under Load Measurement
Referred in JB/T 2781-2005:
*GB/T 273.3-1999 Rolling bearings—Radial bearings—Boundary dimensions,general plan
*GB/T 292-1994 Rolling bearings―Angular contact ball bearings―Boundary dimensions
*GB/T 307.1-2005 Rolling bearings - Radial bearings - Tolerances
*GB/T 307.2-2005 Rolling bearings - Measuring and gauging principles and methods
*GB/T 307.3-2005 Rolling bearings--General technical regulations
*GB/T 4604-1993 Rolling bearings-Radial internal clearance
*GB/T 5800-2003 Rolling bearings - Instrument precision bearings
*GB/T 7218-1995 Rolling bearings - Miniature radial ball bearings with flanged outer ring - Boundary dimensions
*GB/T 7811-1999 Rolling bearings-Symbols for quantities
*GB/T 8597-2003 Rolling bearings - Rust proof packaging
*GB/T 18254-2002 High-carbon chromium bearing steel (including Amendment 1)
*BB/T 1255-2001
*GBT3573-2004
*JB/T 3574-1997 Marking for Rolling Bearings Products
*JB/T 5313-2001 Rolling bearing — Measuring methods for vibration(velocity)
*JB/T 5314-2002 Rolling bearings-Measuring methods for vibration(acceleration)
*JB/T 6641-1993
*JB/T 7047-1999 Rolling bearings - Specification of vibration(acceleration)for deep groove ball bearings
*JB/T 7050-1993
*JB/T 7752-1995
*JB/T 8571-1997
*JB/T 8921-1999 Rolling bearings and commercial parts - Inspection rules
*JB/T 10187-2000 Rolling bearings ― Deep groove ball bearing vibration(velocity)― Specifications
JB/T 2781-2005 is referred in:
* JB/T 8880-2010 Rolling bearings-Deep groove ball bearings for electric motors-Specifications
Code of China
Standard
JB/T 2781-2005   Rolling bearings - Miniature ball bearings-Specifications (English Version)
Standard No.JB/T 2781-2005
Statussuperseded
LanguageEnglish
File FormatPDF
Word Count2500 words
Price(USD)90.0
Implemented on2006-1-1
Deliveryvia email in 1 business day
Detail of JB/T 2781-2005
Standard No.
JB/T 2781-2005
English Name
Rolling bearings - Miniature ball bearings-Specifications
Chinese Name
滚动轴承 微型球轴承 技术条件
Chinese Classification
J11
Professional Classification
JB
ICS Classification
Issued by
NDRC
Issued on
2005-9-23
Implemented on
2006-1-1
Status
superseded
Superseded by
JB/T 2781-2015
Superseded on
2016-3-1
Abolished on
Superseding
JB/T 2781-1991
Language
English
File Format
PDF
Word Count
2500 words
Price(USD)
90.0
Keywords
JB/T 2781-2005, JB 2781-2005, JBT 2781-2005, JB/T2781-2005, JB/T 2781, JB/T2781, JB2781-2005, JB 2781, JB2781, JBT2781-2005, JBT 2781, JBT2781
Introduction of JB/T 2781-2005
1. Scope This standard specifies the technical requirements, inspection method, inspection rule, marking and packaging of miniature ball bearings for general purpose with bore diameter of 0.6~10mm and boundary dimensions consistent with GB/T 273.3. This standard is applicable to the deep groove ball bearings and angular contact ball bearings (including bearings with flanged outer rings) of each tolerance grade and the self-aligning ball bearings of Grades 0, 6 and 5. 2. Normative Reference The following normative documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to (excluding amending errors in the text), 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 the normative document is applicable. For undated references, the latest edition of the normative document applies. GB/T 273.3-1999 Rolling Bearings - Radial Bearings - Boundary Dimensions - General Plan (eqv ISO 15:1998) GB/T 292-1994 Rolling Bearings - Angular Contact Ball Bearings - Boundary Dimensions GB/T 307.1-2005 Rolling Bearings - Radial Bearings - Tolerances (ISO 492:2002, MOD) GB/T 307.2-2005 Rolling Bearings - Measuring and Gauging Principles and Methods (ISO 1132-2:2001, Roiling Bearings - Tolerances - Part 2: Measuring and Gauging Principles and Methods, MOD) GB/T 307.3-2005 Rolling Bearings - General Technical Regulations GB/T 4604-1993 Rolling Bearings - Radial Internal Clearance (eqv ISO 5753:1991) GB/T 5800-2003 Rolling Bearings - Instrument Precision Bearing (ISO 1224:1984, MOD) GB/T 7218-1995 Rolling Bearings - Miniature Radial Ball Bearings with Flanged Outer Ring - Boundary Dimensions GB/T 7811-1999 Rolling Bearings - Symbols for Quantities GB/T 8597-2003 Rolling Bearings - Rust Proof Packaging GB/T 18254-2002 High-carbon Chromium Bearing Steel BB/T 1255-2001 Specification for Heat-treatment of Rolling Bearing Parts Made from High Carbon Chromium Steel GB/T 3573-2004 Rolling Bearings - Methods for the Measurement of Radial Internal Clearance JB/T 3574-1997 Rolling Bearings - Marking for Products JB/T 5313-2001 Rolling Bearing - Measuring Methods for Vibration (Velocity) JB/T 5314-2002 Rolling Bearing - Measuring Methods for Vibration (Acceleration) JB/T 6641-1993 Rolling Bearings - Residual Magnetism and its Assessment Method JB/T 7047-1999 Rolling Bearings - Specifications of Vibration (Acceleration) for Deep Groove Ball Bearings JB/T 7050-1993 Rolling Bearings - Assessment Methods for Cleanliness JB/T 7752-1995 Sealed Deep Groove Ball Bearings - Specifications JB/T 8571-1997 Rolling Bearings - Sealed Deep Groove Ball Bearings - Performance Test Rule of Dustproofing, Grease Leakage and Temperature Rise JB/T 8921-1999 Rolling Bearings and Commercial Parts - Inspection Rules JB/T 10187-2000 Rolling Bearings - Vibration for Deep Groove Ball Bearings (Velocity) - Specifications
Contents of JB/T 2781-2005
Contents Foreword I 1. Scope 2. Normative Reference 3. Symbols 4. Technical Requirements 4.1 Material and Heat Treatment 4.2 Tolerance 4.3 Internal Clearance and Contact Angle 4.4 Residual Magnetism 4.5 Rotating Flexibility Requirements 4.6 Cleanliness 4.7 Vibration 4.8 Appearance Quality for Finished Product 4.9 Other Technical Requirements 5. Inspection Method 5.1 Measurement for Boundary Dimensions and Rotating Accuracy 5.2 Inspection for Width Deviation △Ts (See Figure 1 and Figure 2) 5.3 Measurement for Radial Internal Clearance 5.4 Measurement of Residual Magnetism 5.5 Rotating Flexibility Inspection 5.6 Cleanliness Inspection 5.7 Vibration Inspection 5.8 Inspection for Assembly Quality and Appearance Quality 5.9 Inspection for Grease Leakage, Temperature Rise and Dust Proof 6. Inspection Rules 7. Marking and Packaging 7.1 Marking 7.2 Rust Proof and Packaging Appendix A (Informative) Radial Internal Clearance Value under Load Measurement
About Us   |    Contact Us   |    Terms of Service   |    Privacy   |    Cancellation & Refund Policy   |    Payment
Tel: +86-10-8572 5655 | Fax: +86-10-8581 9515 | Email: coc@codeofchina.com | QQ: 672269886
Copyright: TransForyou Co., Ltd. 2008-2040
 
 
Keywords:
JB/T 2781-2005, JB 2781-2005, JBT 2781-2005, JB/T2781-2005, JB/T 2781, JB/T2781, JB2781-2005, JB 2781, JB2781, JBT2781-2005, JBT 2781, JBT2781