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JJG 784-2011 English PDF

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JJG 784-2011: Verification regulation of deep groove ball bearing bounce measuring instrument
Status: Valid

JJG 784: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 784-2011English329 Add to Cart 3 days [Need to translate] Verification regulation of deep groove ball bearing bounce measuring instrument Valid JJG 784-2011
JJG 784-2010EnglishRFQ ASK 3 days [Need to translate] Deep groove ball bearings beating meter verification procedures Obsolete JJG 784-2010
JJG 784-1992English279 Add to Cart 3 days [Need to translate] Verification Regulation of Radial Ball Bearing Sway Tester Obsolete JJG 784-1992

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Basic data

Standard ID JJG 784-2011 (JJG784-2011)
Description (Translated English) Verification regulation of deep groove ball bearing bounce measuring instrument
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A52
Classification of International Standard 17.040
Word Count Estimation 14,181
Date of Issue 2011-01-21
Date of Implementation 2011-07-21
Older Standard (superseded by this standard) JJG 784-1992
Quoted Standard JJG 39-2004; JJG 34-2008; JJG 118-2010; JJF 1001-1998; JJF 1059-1999; JJF 1094-2002; GB/T 307.2-2005
Regulation (derived from) AQSIQ Announcement No. 15 of 2011
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to measuring OD (30 ~ 360) mm deep groove ball bearing outer diameter runout measuring instrument and measurement (10 ~ 215) mm deep groove ball bearing inner ring beating meter initial verification, testing and use of subsequent checking.

JJG 784-2011: Verification regulation of deep groove ball bearing bounce measuring instrument

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Verification regulation of deep groove ball bearing bounce measuring instrument State verification procedures People's Republic of China Deep groove ball bearing runout measuring instrument Issued on. 2011-01-21 2011-07-21 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Deep groove ball bearing runout measuring instrument Verification Regulation Measuring Instrument Replacing JJG 784-1992 The regulations by the State Administration of Quality Supervision, Inspection and Quarantine on January 21, 2011 for approval and self From July 21, 2011 into effect. NFP. National Engineering Geometrical Parameters Measurement Technology Committee The main drafting units. Shandong Institute of Metrology Participated in the drafting. Luoyang LYC Bearing Co., Ltd. Yantai Bearing Instrument Co., Ltd. Jiangsu Province Institute of Metrology This procedure works commissioned by the National geometric parameter measurement technology committee responsible for the interpretation The main drafters of this procedure. Zhao Dongsheng (Shandong Province Institute of Metrology) Sunkuai Qing (Shandong Province Institute of Metrology) Xia Xiao Hong (Shandong Province Institute of Metrology) Drafters participate. Pang Huaqi (Luoyang LYC Bearing Co., Ltd.) Xu Qi (Yantai Bearing Instrument Co., Ltd.) Liu Ziqiang (Luoyang LYC Bearing Co., Ltd.) Zhu crimson (Jiangsu Province Institute of Metrology)

table of Contents

1 Scope (1) 2. Referenced Documents (1) 3 Overview (1) 4 metering performance requirements (2) 4.1 the mass of loading (2) 4.2 Face support positioning table surface roughness (2) 4.3 Face Flatness (2) 4.4 three positioning table supporting the bottom surface of the working face height difference (2) 4.5 Repeatability (2) 4.6 Indication error (2) 5 General Requirements (2) 5.1 Appearance (2) 5.2 Interaction of each part (3) 6 Control of measuring instruments (3) 6.1 Verification condition (3) 6.2 Verification Project (3) 6.3 Verification Methods (4) Processing 6.4 Verification Results (5) 6.5 test cycle (5) Appendix A Error in Measurement Uncertainty Evaluation (6) Appendix B calibration certificate and test results in the notice page format (8) Deep groove ball bearing runout measuring instrument verification regulation

1 Scope

This procedure is suitable for measuring the outer diameter (30 ~ 360) mm deep groove ball bearing outer ring runout measuring apparatus and the inner diameter (10 ~ 215) mm deep groove ball bearing inner ring runout gauge initial verification, use and subsequent verification check.

2 Citations

The regulations cited in the following documents JJG 39-2004 mechanical comparator JJG 34-2008 indicator (pointer, digital display) JJG 118-2010 Wrap Spring comparator JJF1001-1998 common measurement terms and definitions JJF1059-1999 Evaluation and Expression of Uncertainty in Measurement JJF1094-2002 measuring instrument characteristics evaluation Principles and Methods GB/T 307.2-2005 Rolling measuring and testing When using this procedure, it should pay attention to using the currently valid version of the documents cited.

3 Overview

Deep groove ball bearing runout measuring instrument (hereinafter referred to as jitter meter) is mainly used for deep groove ball bearing inner and outer rings And an end face of radial raceway runout measurements. Instrument appearance Figures 1 and 2, the structure is dominated by indicator, Biography Move the lever, the support positioning tables, rails and base composition.

1 outer ring runout measuring instrument Dimensions

1,5 indicator; 2 - supporting the positioning table; 3 - loading blocks; 4- transmission lever; 6- base

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