1、 ENGINEERING STANDARDS Test Procedure SUPERCEDED EDS-T-4604 Method for Gaging Seal Lip Diameter This standard may be applied only for current projects. It is Superceded for all future projects and replaced by GMW3157. 6d * : ?U9I- Note: 8 E:48t G8 =97 FF7 957%L+ , FG P-P Program .Bd# GMW3157 ) $4=F7
2、 957F$ . Copyright 2011 General Motors Company All Rights Reserved November 2011 Originating Department: GM Korea Engineering Standards Page 1 of 3 Version : 4 1 Scope Note: Nothing in this standard supersedes applicable laws and regulations. Note: In the event of conflict between the Korean and Eng
3、lish language, the Korean language shall take precedence. 1.1 Purpose. This standard provides a method for gaging primary free lip diameter of radial lip type seals. Diameter tolerance is related to air flow rate between the lip and a mandrel of known size when air is applied at a standard pressure
4、to one side of the seal assembly. 1.2 Applicability. This standard is applied to radial lip type seals used for passenger car. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. None 2.2 GM Standards/Specifications.
5、 EDS-T-4603 2.3 Additional References. None 3 Resources 3.1 Equipment. 3.1.1 Apparatus such as Figure 1 in EDS-T-4603. 3.1.2 Two test mandrels for each size seal to be measured, as follows: 3.1.2.1 No 1. Diameter equal to the minimum specified lip diameter - with tolerance of 0.013 mm. Surface rough
6、ness -0.38 Ra or less 15 inch Ra -. 3.1.2.2 No 2. Diameter equal to the maximum specified lip diameter - with tolerance of 0.013 mm. Surface roughness -0.38 Ra or less 15 inch Ra -. 1 P7 :0 : ., E:48 6&F !7$ :4-8! 9I8x $4=F 3L 6$ . :0 : F67t 7568 18 88x 7 , F6* 72T8p) F$ . 1.1 +95 . 8 8t (8&H6 * GI4
7、 6d8 07 38%P E:48x 957F$ . 2.1 17 E:4 / . None 2.2 GM E:4 / . EDS-T-4603 2.3 dA E:4 / . None 3 4G 88 3.1 4G 8/x . 3.1.1 8?# EDS-T-4603 8 ,* 17 .(7 :# -H7t M$ . 3.1.2 6x(7t M8 ?U9I%T 5 ?3L8 6d7 $4F 4G 7 +&)D % P . 3.1.2.1 No 1. 0.013 mm8 )=* 4: 2 9I * :0 M8t : . E+ ?d# 0.38 Ra D# 15 inch Ra.($ 958x .
8、 3.1.2.2 No 2. 0.013 mm8 )=* 4: $4 9I * :0 M8t : . E+ ?d# 0.38 Ra D# 15 inch Ra.($ 958x GM KOREA ENGINEERING STANDARDS EDS-T-4604 Copyright 2011 General Motors Company All Rights Reserved November 2011 Page 2 of 3 Version : 4 3.1.3 One retainer ring for each size seal assembly to be measured, as fol
9、lows: y Inside diameter 0.025 to 0.050 mm greater than the maximum specified seal case diameter. 3.1.4 When assembled in retainer ring, the mandrel shall be concentric within 0.013 mm to seal case counter bore of ring. 3.1.5 O-ring or other suitable gaskets to prevent air leakage around the seal cas
10、e outside diameter and around the mandrel pilot. 3.1.6 Schematic for compressed air supply (filtered). 4 Procedures 4.1 Conditions. 4.1.1 Test Conditions. Deviations from the requirements of this standard shall have been agreed upon. Such requirements shall be specified on component drawings, test c
11、ertificates, reports, etc. 4.2 Instructions. 4.2.1 Measurements shall be taken at room temperature. The seal shall be exposed to room temperature within 1 hour before measuring. 4.2.2 Mount seal assembly between minimum-diameter (No. 1) mandrel and retainer ring before the air is applied to the outs
12、ide face of the sea. 4.2.3 Apply air pressure of 3.50.2 kPa. 4.2.4 Read gauging value . 4.2.5 Repeat step 1 through 4 using maximum diameter (No. 2) mandrel. 5 Data 5.1 Evaluation. 5.1.1 Air flow rate with minimum diameter test mandrel shall be equal to or greater than 10 L/min. 5.1.2 Air flow rate
13、with maximum diameter test mandrel shall be equal to or smaller than 10 L/min. 6 Safety This standard may involve hazardous materials, operations, and equipment. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this st
14、andard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. 7 Notes 7.1 Glossary. Not applicable. 7.2 Acronyms, Abbreviations, and Symbols. Not applicable. 3.1.3 6x(7t M8 ?U9I%T 5 ?3L8 6d7 $4F *B8“$4 9I 6d 483 :.($ 0.025 72P 0.0
15、50 mm A ! . 3.1.4 *B8“ )d )=8? . 4 4G 92 F 48 % 6| 1772P “%L66 F$ . 4.2.2 2 : (No. 1) +&)D0 *B8“$4 : (No. 2) +&)D8x 17F7 3B! 172P 4: -L.)F$ . 5 4G $8Bd 5.1 D4 . 5.1.1 2 : 4G 7 +&)D7 $4F )d H* /x4 10 L/min0 M! .($ 6 F$ . 5.1.2 $4 : 4G 7 +&)D7 $4F )d H* /x4 10 L/min0 M! .($ 86x6 F$ . 6 6|987 $4F 7 9 .
16、, E:48t 88G ,p: , 86 , 8/x &%8x E FF 3L 8$ . ., E:48t 87 $4F 170 4)%P +& 6|98 ,l9P8 F8x 9P4F:# 6#$ . &d(2P 17 987 95FF 6|980 I 1B* 9DF , -18 9PF 728 957 7 .* 9IF# 8t ., E:4 1788 =y8 1F8$ . 7 768 9I8 7.1 98,l 76 . F$-1F 68 . GM KOREA ENGINEERING STANDARDS EDS-T-4604 Copyright 2011 General Motors Comp
17、any All Rights Reserved November 2011 Page 3 of 3 Version : 4 7.2 66 -C dGl . F$-1F 68 . 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Test to EDS-T-4604 9 Release and Revisions This standard was originated in August 1995. It was first approved by
18、Engineering Standard Committee in August 1995. It was first published in August 1995. 7.2 66 -C dGl . F$-1F 68 . 8 Ed - $* ,l2P! $+ &%72P ., E:48 87%T &# $80 M8 EdF$ . Test to EDS-T-4604 9 9P9I -C P9I 8)Y ., E:48t 1995 “x 8 87 E:4 -Gl4 .7 %L6 , d3TE:41,h7 8F 1995“x 887 38%L6$ . ., E:48t 1995“x 887 ) 9P9I / -PF%L6$ . Issue / P9I8)Y Publication Date / 38 88 Description (Organization) / 9PP9I76 (:04.2P ) 4 NOV 2011 Apply new Engineering Standard Template. Superceded (Lub, Vent & Fastener Development Team) / 4 d3TE:4 64 957 . F9I957 =* (Lub, Vent & FastenerP-PD4 )
