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QC/T 1141-2020: Automobile Clutch Release Bearing Assembly Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
QC/T 1141-2020: Automobile Clutch Release Bearing Assembly---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT1141-2020QC AUTOMOBILE INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 43.040.50 T 21 Automobile Clutch Release Bearing Assembly ISSUED ON: DECEMBER 09, 2020 IMPLEMENTED ON: APRIL 01, 2021 Issued by: Ministry of Industry and Information Technology of PRC Annex: Number, name, and date of implementation of 8 automobile industry standards No. Standard number Standard name Replaced standard number Date of implementation 479 QC/T 1136-2020 Environmental test requirements and test methods of insulated-gate bipolar transistors (IGBT) module for electric vehicles 2021-04-01 480 QC/T 1137-2020 Edging glass for automobiles 2021-04-01 481 QC/T 1138-2020 Sliding window glass assembly for automobiles 2021-04-01 482 QC/T 1139-2020 Technical specification for auto parts remanufacturing products - Connecting rod 2021-04-01 483 QC/T 1140-2020 Technical specification for auto parts remanufacturing products - Crankshaft 2021-04-01 484 QC/T 1141-2020 Clutch release bearing assembly for automobile 2021-04-01 485 QC/T 533-2020 Drive axle assembly for commercial vehicle QC/T 533-1999 QC/T 534-1999 2021-04-01 486 QC/T 755-2020 Technical requirements for LNG vehicle gas system QC/T 755-2006 2021-04-01 Table of ContentsForeword ... 6 1 Scope ... 7 2 Normative Reference ... 7 3 Terms and Definitions ... 7 4 Technical Requirements ... 8 5 Test Methods ... 10 Automobile Clutch Release Bearing Assembly1 ScopeThis document specifies the technical requirements and bench test methods for automotive clutch release bearing assembly. This document is applicable to automotive mechanically and hydraulically controlled clutch release bearing assembly.2 Normative ReferenceThe following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) is applicable to this document. QC/T 1125-2019 Automobile Clutch System Terms and Definitions3 Terms and DefinitionsFor the purposes of this document, the terms and definitions given in QC/T 1125-2019 and the following apply. 3.1 Mechanically controlled clutch release bearing A clutch release bearing that realizes clutch separation and engagement under the action of a mechanical mechanism. 3.2 Hydraulically controlled clutch release bearing The clutch release bearing that realizes the clutch separation and engagement under the action of hydraulic pressure. 3.3 Self-aligning clutch release bearing assembly Bearing assembly with automatic adjustment to realize the coaxial rotation performance of the clutch release bearing assembly and the clutch cover assembly. 3.4 Non-aligning clutch release bearing assembly 4.2 Aligning force According to the test method specified in 5.1.2, the aligning force of self-aligning clutch release bearing assembly of a passenger car shall be 25~150N; and the aligning force of self-aligning clutch release bearing assembly of a commercial vehicle shall be 100~400N; for those with special requirements, they can be implemented according to customer's technical requirements. 4.3 Aligning displacement According to the test method specified in 5.1.3, the aligning displacement of the self- aligning clutch release bearing assembly shall be no less than 1.0mm; for those with special requirements, they can be implemented according to the customer’s technical requirements. 4.4 Noise According to the test method specified in 5.1.4, the noise of the clutch release bearing assembly of passenger cars shall not exceed 64dB (A); and the noise of the clutch release bearing assembly of commercial vehicles shall not exceed 74dB (A); for those with special requirements, they can be implemented according to customer's technical requirements. 4.5 Durability After the durability test is completed in accordance with the test conditions specified in 5.1.5.1, any part of the clutch release bearing assembly shall not be damaged; the amount of wearing on the rotating end face of the bearing shall be no greater than 0.5mm; and the noise value after the test shall be no greater than 120% before the test; and it shall meet the performance requirements of 4.1, 4.2 and 4.3; and the hydraulically controlled clutch release bearing shall also meet the performance requirements of 4.6 and 4.7. 4.6 Pressure resistance According to the test method specified in 5.2.6, the pressure drop of the hydraulically controlled clutch release bearing assembly of the commercial vehicle shall be less than 0.5MPa; and the pressure drop of the hydraulically controlled clutch release bearing assembly of the passenger car shall be less than 0.2MPa. 4.7 Low pressure sealing performance According to the test method specified in 5.2.7, the pressure drop of the hydraulically controlled clutch release bearing assembly shall be less than 1kPa. 4.8 Low temperature performance 1 – motor; 2 – substitute flywheel; 3 – clutch driven plate assembly; 4 – heater; 5 – clutch cover assembly; 6 – insulation protective cover; 7 – release bearing assembly; 8 – force sensor; 9 – connecting rod; 10 – camshaft; 11 – loading motor Figure 5 – Schematic Diagram of Durability Test of Clutch Release Bearing Assembly 5.2 Hydraulically controlled clutch release bearing assembly 5.2.1 Start-up torque test The same as 5.1.1. 5.2.2 Aligning force test The same as 5.1.2. 5.2.3 Aligning displacement test The same as 5.1.3. 5.2.4 Noise test The same as 5.1.4. 5.2.5 Durability test 5.2.5.1 Test conditions The same as 5.1.5.1. 5.2.5.2 Test procedures The hydraulically controlled clutch release bearing assembly and the matching clutch cover assembly and housing shall be installed on the test device shown in Figure 6 for durability test. After the test is completed, it shall be retested in sequence according to the test methods specified in 5.2.1, 5.2.2, 5.2.3, 5.2.4, 5.2.6 and 5.2.7. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of QC/T 1141-2020 be delivered?Answer: The full copy PDF of English version of QC/T 1141-2020 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of QC/T 1141-2020_English with my colleagues?Answer: Yes. The purchased PDF of QC/T 1141-2020_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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