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GB/T 43617.2-2024: Rolling bearings - Noise testing of rolling bearing greases - Part 2: Test and evaluation method BQ+
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Rolling bearings - Noise testing of rolling bearing greases - Part 2: Test and evaluation method BQ+
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GB/T 43617.2-2024
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Basic data | Standard ID | GB/T 43617.2-2024 (GB/T43617.2-2024) | | Description (Translated English) | Rolling bearings - Noise testing of rolling bearing greases - Part 2: Test and evaluation method BQ+ | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J11 | | Classification of International Standard | 21.100.20 | | Word Count Estimation | 18,117 | | Date of Issue | 2024-03-15 | | Date of Implementation | 2024-07-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 43617.2-2024: Rolling bearings - Noise testing of rolling bearing greases - Part 2: Test and evaluation method BQ+
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ICS 21.100.20
CCSJ11
National Standards of People's Republic of China
Rolling bearings Rolling bearing grease noise test
Part 2.Test and evaluation methods BQ
(ISO 21250-2.2020,IDT)
Released on 2024-03-15
2024-07-01 Implementation
State Administration for Market Regulation
The National Standardization Administration issued
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1.Structure and drafting rules for standardization documents"
Drafting.
This document is part 2 of GB/T 43617 "Rolling bearings - Test for noise from rolling bearing greases". GB/T 43617 has been published.
The following parts are published.
--- Part 1.Basic principles, test components and testers;
--- Part 2.Test and evaluation methods BQ.
This document is equivalent to ISO 21250-2.2020 "Rolling bearings - Tests for noise from rolling bearing greases - Part 2.Tests and evaluation
Method BQ.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the China Machinery Industry Federation.
This document is under the jurisdiction of the National Technical Committee for Standardization of Rolling Bearings (SAC/TC98).
This document was drafted by. Luoyang Bearing Research Institute Co., Ltd., Shanghai Feisai Bearing Technology Co., Ltd., SKF (Shanghai) Automotive Technology
Ltd.
The main drafters of this document. Zhang Bowen, Du Xiaoyu, Zhao Lianchun and Lu Linxin.
Introduction
Rolling bearing life theory emphasizes that the use of clean and uniform lubricants is the key to extending bearing life. GfT Worksheet 3[12]
Covers the theory and practice of rolling bearing lubrication.
Grease lubrication is the most common type of rolling bearing lubrication. The cleanliness level of bearing grease is affected by thickeners, base oils, additives (including
Solid lubricant additives) and manufacturing process, and reflected in the running noise. Therefore, it is recommended to conduct rolling bearing grease noise
test.
In addition, the grease noise test specified in this document can help grease manufacturers develop low-noise greases with high damping capacity.
It can also help rolling bearing manufacturers and end users to select low-noise grease with high damping capacity.
This document combines ISO 21250-1, ISO 21250-3 and ISO 21250-4 and covers the determination and evaluation of rolling bearing grease noise.
Test components and tester requirements for BQ method.
GB/T 43617 "Rolling bearings - Test for noise from rolling bearing greases" is intended to consist of four parts.
--- Part 1.Basic principles, test components and testers. Aims to specify common terms, basic principles and test methods for testing noise in rolling bearing greases.
This document contains the symbols, test principles, test conditions, test components and test equipment.
--- Part 2.Test and evaluation method BQ. Aims to specify the test and evaluation of rolling bearing grease noise according to the BQ method
Evaluate.
--- Part 3.Test and evaluation methods MQ. Aims to specify the test and evaluation methods for rolling bearing grease noise according to the MQ method
Evaluate.
--- Part 4.Test and evaluation methods NQ. Aims to specify the test and evaluation methods for rolling bearing grease noise according to the NQ method
Evaluate.
Rolling bearings Rolling bearing grease noise test
Part 2.Test and evaluation methods BQ
1 Scope
This document specifies the test and evaluation method BQ for rolling bearing grease noise.
2 Normative references
The contents of the following documents constitute the essential clauses of this document through normative references in this document.
For referenced documents without a date, only the version corresponding to that date applies to this document; for referenced documents without a date, the latest version (including all amendments) applies to
This document.
GB/T 43617.1-2024 Rolling bearings - Test for noise from rolling bearing greases - Part 1.Basic principles, test components and
Tester (ISO 21250-1.2020, IDT)
ISO 5593 Rolling bearings-Vocabulary
Note. GB/T 6930-2002 Rolling bearing vocabulary (ISO 5593.1997, IDT)
ISO 15242-1 Rolling bearings-Measuring methods for vibration measurement Part 1.Fundamentals
Note. GB/T 24610.1-2019 Rolling bearing vibration measurement method Part 1.Fundamentals (ISO 15242-1.2015, IDT)
ISO 21250-1 Rolling bearings - Tests for noise from rolling bearing greases - Part 1.Basic principles, test kits and test apparatus
andtestmachine)
3 Terms and definitions
For the purpose of this document, the terms and definitions defined in ISO 5593, ISO 15242-1 and ISO 21250-1 and the following apply.
The URLs for the terminology databases used in standardization work maintained by ISO and IEC are as follows.
3.1
Sampling rate
The continuous signal is sampled and converted to a discrete-time signal using the frequency used by < Signal Processing>.
Note. The unit is Hertz (Hz) or the number of samples (readings) per second [the number of samples per second (samples/s)].
3.2
Peak reset peakreset
Manual or automatic zeroing of the peak detector.
4 Symbols, abbreviations and subscripts
The symbols, abbreviations and subscripts given in Table 1 and Table 2 of GB/T 43617.1-2024, as well as the symbols and abbreviations in Table 1 and Table 2
The subscripts in are applicable to this document.
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