1、 MS16634C 1 May 2012 SUPERSEDING MS16634B 2 May 1990 DETAIL SPECIFICATION SHEET RING, RETAINING, EXTERNAL, BOWED “E” (REDUCED SECTION TYPE) This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein
2、 shall consist of this specification sheet and procurement specification MIL-R-21248. FIGURE 1. RING, RETAINING. INCH-POUND AMSC N/A FSC 5325 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS16634C 2 TABLE 1 DIMENSIONS. S SHAFT (REF) D FREE E LARGE
3、HEIGHT T 1/ THICKNESS P OVERALL BOW HEIGHT G W WIDTH O 3/ TAKE UP R 4/ CH 4/ RECOMMENDED GROOVE (REF) OF RETAINED PART (REF) INCH MM BASIC TOL (REF) BASIC TOL BASIC TOL BASIC TOL BASIC TOL MAX MAX MAX +.002 -.000 .0015 .110 2.8 .076 +.002 .155 .010 .030 .005 .079 FIM 2/ .035 .013 .080 .060 .125 3.2
4、.094 -.003 .073 .010 .001 .030 .096 .022 .013 .040 .030 .140 3.6 .102 .090 .015 .033 .105 .025 .014 .060 .045 .156 4.0 .114 .090 .015 .035 .116 .027 .014 .060 .045 .172 4.3 .125 .099 .015 .037 .005 .127 +.003 .029 .016 .060 .045 -.000 .188 4.8 .145 .101 .015 .038 .147 .003 .030 .027 .060 .045 .219 5
5、.6 .185 .132 .015 .051 .188 FIM 2/ .040 .026 .060 .045 .250 6.4 .207 .167 .025 .058 +.007 .210 .049 .023 .060 .045 .312 7.9 .243 .136 .025 .058 -.008 .250 .047 .023 .060 .045 .375 9.5 .300 .188 .035 .068 .303 .060 +.005 .022 .065 .050 +.003 .002 .008 -.000 .438 11.1 .337 -.004 .183 .035 .068 .343 +.
6、004 .060 .022 .065 .050 .500 12.7 .392 .213 .042 .084 .009 .396 -.000 .073 .030 .080 .060 .625 15.9 .480 .240 .042 .089 .485 .004 .077 .035 .080 .060 .744 18.9 .616 .202 .050 .100 .625 FIM 2/ .085 .037 .060 .045 .750 19.0 .547 +.003 .283 ,050 .100 .580 .085 .037 .085 .065 -.005 .010 .875 22.2 .688 .
7、326 .050 .100 .675 .085 .037 .085 .065 .984 25.0 .822 .349 .050 .100 .835 .085 .037 .085 .065 1.188 30.2 1.066 .297 .062 .124 1.079 +.005 .107 .045 .090 .070 1.375 34.9 1.213 +.006 .348 .062 .003 .124 .015 1.230 -.000 .107 .045 .090 .070 -.010 .005 FIM 2/ 1/ T - THICKNESS “T” APPLIES TO UNPLATED RIN
8、GS. FOR CORROSION RESISTANT STEEL AND PLATED RINGS, +.002 SHOULD BE ADDED TO THE MAXIMUM TOLERANCE, i.e. .002 SHOULD BE +.004/-.002. 2/ FIM - (FULL INDICATOR MOVEMENT) IS THE MAXIMUM ALLOWABLE DEVIATION OF CONCENTRICITY BETWEEN THE GROOVE AND THE SHAFT. 3/ O - END PLAY TAKE-UP (DESIGN REFERENCE DIME
9、NSIONS). 4/ R AND CH - RADII OR CHAMFERS ALLOWABLE ON PARTS TO BE RETAINED BY THE RINGS. THRUST LOADS OF RINGS, RETAINING PARTS WITH CORNER RADII OR CHAMFERS, SEE NOTE (h) ON PAGE 7. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS16634C 3 REQUIREM
10、ENTS: 1. CLASSIFICATION: RETAINING RINGS FURNISHED UNDER THIS STANDARD SHALL BE TYPE I, CLASS 3 OF THE PROCUREMENT SPECIFICATION. 2. MATERIAL: (a) CARBON SPRING STEEL, GRADE 1060 THRU 1095 (UNS G10600 THRU G10950) IN ACCORDANCE WITH ASTM A 568/A568M OR ASTM A684/A684M. (b) CORROSION RESISTANT STEEL,
11、 IN ACCORDANCE WITH SAE AMS 5520 (UNS S15700). (c) BERYLLIUM COPPER, ALLOY NUMBER 170 (UNS C17000) OR ALLOY NUMBER 172 (UNS C17200) IN ACCORDANCE WITH ASTM B194. 3. HARDNESS: TABLE II. HARDNESS. SHAFT (REF) CARBON STEEL CORROSION RESISTANT STEEL BERYLLIUM COPPER .110 TO .219 INCL 84.5-87 HRI5N 82.5-
12、86 HRI5N 77-82 HRI5N .250 TO .312 INCL 66.5-71 HR30N 63-69.5 HR30N 77-82 HRI5N .375 TO 1.375 INCL 47-52 HRC 44-51 HRC 4. PROTECTIVE FINISH OR TREATMENT: a. CARBON STEEL - SHALL BE AS SPECIFIED (SEE TABLE Ill OR IV) 1. CADMIUM PLATE IN ACCORDANCE WITH SAE AMS-QQ-P-416, TYPE II, CLASS 3 OR ASTM B 696,
13、 TYPE II, CLASS 5. 2. ZINC COAT IN ACCORDANCE WITH ASTM B633, TYPE II, CLASS Fe/Zn 5 or ASTM B 695, TYPE II, CLASS 5. 3. PHOSPHATE COAT IN ACCORDANCE WITH MIL-DTL-16232, TYPE Z, CLASS 2. b. CORROSION RESISTANT STEEL - SHALL BE CLEANED, DESCALED AND PASSIVATED IN ACCORDANCE WITH SAE AMS2700. 5. PART
14、NUMBER: THE BASIC MS PART NUMBER IS FOLLOWED BY A DASH NUMBER TAKEN FROM TABLE Ill OR IV. EXAMPLE: MS16634-1011 IS THE PART NUMBER FOR A CARBON STEEL, CADMIUM PLATE, EXTERNAL, BOWED “E” RETAINING RING FOR USE ON A .110 SHAFT DIAMETER. Provided by IHSNot for ResaleNo reproduction or networking permit
15、ted without license from IHS-,-,-MS16634C 4 TABLE III. DASH NUMBERS FOR MS16634. 1/ SUBSTITUTE CORROSION RESISTANT STEEL WHEN USED IN FOOD PROCESSING MACHINERY, OR IN FUEL OR LUBRICATION SYSTEMS, OR WHEN USED AT TEMPERATURES OVER 450F (233C). S SHAFT (REF) 1/ CARBON STEEL CADMIUM PLATE 1/ CARBON STE
16、EL ZINC COAT 1/ CARBON STEEL PHOSPHATE COAT STEEL CORROSION RESISTANT 1/ BERYLLIUM COPPER DASH NO DASH NO DASH NO DASH NO DASH NO .110 -1011 -2011 -3011 -4011 -5011 .125 -1012 -2012 -3012 -4012 -5012 .140 -1014 -2014 -3014 -4014 -5014 .156 -1015 -2015 -3015 -4015 -5015 .172 -1017 -2017 -3017 -4017 -
17、5017 .188 -1018 -2018 -3018 -4018 -5018 .219 -1021 -2021 -3021 -4021 -5021 .250 -1025 -2025 -3025 -4025 -5025 .312 -1031 -2031 -3031 -4031 -5031 .375 -1037 -2037 -3037 -4037 -5037 .437 -1043 -2043 -3043 -4043 -5043 .500 -1050 -2050 -3050 -4050 -5050 .625 -1062 -2062 -3062 -4062 -5062 .744 -1074 -207
18、4 -3074 -4074 -5074 .750 -1075 -2075 -3075 -4075 -5075 .875 -1087 -2087 -3087 -4087 -5087 .984 -1098 -2098 -3098 -4098 -5098 1.188 -1118 -2118 -3118 -4118 -5118 1.375 -1137 -2137 -3137 -4137 -5137 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS166
19、34C 5 TABLE IV. SUBSTITUTION TABLE, CROSS REFERENCE PART NUMBERS 1/ SUBSTITUTE CORROSION RESISTANT STEEL WHEN USED IN FOOD PROCESSING MACHINERY, OR IN FUEL OR LUBRICATION SYSTEMS, OR WHEN USED AT TEMPERATURES OVER 450F (233C). S SHAFT (REF) INACTIVE SUBSTITUTE SUBSTITUTE SUBSTITUTE CARBON STEEL 1/ C
20、ARBON STEEL CADMIUM PLATE 1/ CARBON STEEL ZINC COAT 1/ CARBON STEEL PHOSPHATE COAT MS16634 MS16634 MS16634 MS16634 .110 -11 -1011 -2011 -3011 .125 -12 -1012 -2012 -3012 .140 -14 -1014 -2014 -3014 .156 -15 -1015 -2015 -3015 .172 -17 -1017 -2017 -3017 .188 -18 -1018 -2018 -3018 .219 -21 -1021 -2021 -3
21、021 .250 -25 -1025 -2025 -3025 .312 -31 -1031 -2031 -3031 .375 -37 -1037 -2037 -3037 .437 -43 -1043 -2043 -3043 .500 -50 -1050 -2050 -3050 .625 -62 -1062 -2062 -3062 .744 -74 -1074 -2074 -3074 .750 -75 -1075 -2075 -3075 .875 -87 -1087 -2087 -3087 .984 -98 -1098 -2098 -3098 1.188 -118 -1118 -2118 -31
22、18 1.375 -137 -1137 -2137 -3137 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS16634C 6 NOTES: 1. UNLESS OTHERWISE SPECIFIED, ALL DIMENSIONS ARE IN INCHES. 2. IN THE EVENT OF A CONFLICT BETWEEN THE TEXT OF THIS STANDARD AND THE REFERENCES CITED HE
23、REIN, THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE. 3. RECOMMENDED DESIGN LIMITATIONS AND USAGE. (a) INTENDED USE- TO PROVIDE UNUSUALLY LARGE SHOULDERS FOR POSITIONING AND MAINTAINING MACHINE COMPONENTS ON SHAFTS. THEY ARE APPLIED RADIALLY AND WITHSTAND CONSIDERABLE THRUST LOAD. THE RINGS ARE BEN
24、T LIKE A BOW OUT OF PLANE. FREE ENDS AND OPPOSITE EDGE ABUT THE MACHINE PART, MID SECTION OF RING ABUTS OUTER GROOVE WALL. RINGS WILL TAKE UP END PLAY RESILIENTLY. THEY ARE OF ADVANTAGE WHERE AXIAL ASSEMBLY OF A BORED RETAINING RING IS NOT POSSIBLE. THE USE OF THE FOLLOWING FORMULAS ARE BASED ON THE
25、 FACT THAT THE RING WILL NOT FAIL IN COMPRESSION. LIMITATION ON USE- THE FOLLOWING FORMULAS ARE NOT TO BE USED FOR BRITTLE MATERIALS SUCH AS CAST IRON, ETC. WARNING - RINGS SHOULD NOT BE OVER EXPANDED DURING INSTALLATION SINCE THIS WILL LEAD TO RING FAILURE. IF RING HAS PLAY BETWEEN THE GROOVE DIAME
26、TER AND THE INSIDE RING DIAMETER THIS INDICATES THAT THE RING HAS BEEN OVER EXPANDED, (PROVIDING GROOVE HAS BEEN MACHINED TO RECOMMENDED DIMENSIONS). FOR APPROXIMATE SAFETY RPM LIMITS SEE TABLE V. TABLE V. APPROXIMATE SAFETY RPM LIMITS. SHAFT(INCHES) .250 .500 1.000 CARBON STEEL AND CORROSION RESIST
27、ANT STEEL RPM LIMIT 25,000 14,000 6,500 BERYLLIUM COPPER RPM LIMIT 16,000 9,000 - (b) ALLOWABLE THRUST LOAD CAPACITY OF THE RINGS. ABUTTING COMPONENTS TO HAVE SHARP CORNERS= P = ALLOWABLE THRUST LOAD (POUNDS) P = STX S = SHAFT DIAMETER (INCHES) 3F WHERE: T = RING THICKNESS (INCHES) X = ULTIMATE SHEA
28、R STRENGTH OF THE RING MATERIAL (PSI) 1/ F = FACTOR OF SAFETY A SAFETY FACTOR, F= 3, IS RECOMMENDED SINCE THE RING UNDER LOAD IS SUBJECTED NOT ONLY TO PURE SHEAR STRESSES, BUT ALSO TO BENDING STRESSES. (c) ALLOWABLE LOAD CAPACITY OF GROOVE WALL P = ALLOWABLE COMPRESSION LOAD (POUNDS) P = GdY G = GRO
29、OVE DIAMETER (INCHES) 3F WHERE: d = GROOVE DEPTH (INCHES) Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE MATERIAL (PSI) F = FACTOR OF SAFETY TO INSURE A SAFE WORKING LOAD, A SAFETY FACTOR, F= 2, IS RECOMMENDED. (d) MINIMUM DISTANCE BETWEEN OUTER GROOVE WALL AND END OF SHAFT = Z= 2d Z = MINIMUM DIST
30、ANCE BETWEEN OUTER GROOVE AND END OF SHAFT (INCHES) WHERE: d = GROOVE DEPTH INCHES) 1/ X = 100,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS UP TO AND INCLUDING .219 INCH SHAFT DIAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 120,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS .250 AND .312 INCH SHA
31、FT DIAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 150,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS .375 INCH AND OVER SHAFT DIAMETERS OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 110,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS OF ALL SHAFT DIAMETERS OF BERYLLIUM COPPER. Provided by IHSNo
32、t for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS16634C 7 (e) LOCATION OF GROOVE = LMAX = MMIN + TMIM + TAKE-UP (AS LISTED) LMIN = MMAX + TMAX + .005 1/ TAKE-UP L + M + T + .005 WHERE: L = LMAX - LMIN M = MMAX - MMIN T =TMAX - TMIN (f) VIBRATION = A RETAINING RING W
33、ILL BE SECURE AGAINST VIBRATION IF ITS SHEAR FATIGUE STRENGTH EQUALS OR EXCEEDS THE FORCE CREATED BY THE MASS OF THE PART BEING REPEATEDLY ACCELERATED AGAINST THE RING. (1) SHEAR STRENGTH OF RING (CRITICAL). ABUTTING COMPONENTS TO HAVE SHARP CORNERS. .36XTS W a X = ULTIMATE SHEAR STRENGTH OF RING MA
34、TERIAL (PSI) 2/ g T = RING THICKNESS (INCHES) WHERE: S = SHAFT DIAMETER (INCHES) OR FOR HARMONIC MOTION W = WEIGHT OF ABUTTING PARTS (POUNDS) g = ACCELERATION DUE TO GRAVITY (IN/SEC2) a = 2 = AMPLITUDE OF VIBRATION (INCHES) = ANGULAR SPEED (RAD/SEC) .36XTS W 2a = ACCELERATION (IN/SEC2) g (2) COMPRES
35、SION STRENGTH OF GROOVE MATERIAL (CRITICAL) = .55YdG W 2Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE g WHERE: MATERIAL (PSI) d = GROOVE DEPTH (INCHES) G = GROOVE DIAMTER (INCHES) OTHER SYMBOLS AS SHOWN IN (1) 1/ IT IS ADVISABLE FOR SAFER RING ASSEMBLY TO CALCULATE LMIN WITH AN ADDITIONAL .005 IN
36、ORDER THAT THE RING IS NOT FLATTENED OUT COMPLETELY IN ADVERSE TOLERANCE CASES. 2/ X = 100,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS UP TO AND INCLUDING .219 INCH SHAFT DIAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 120,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS .250 AND .312 INCH SHAFT D
37、IAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 150,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS .375 INCH AND OVER SHAFT DIAMETERS OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 110,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS OF ALL SHAFT DIAMETERS OF BERYLLIUM COPPER. Provided by IHSNot fo
38、r ResaleNo reproduction or networking permitted without license from IHS-,-,-MS16634C 8 (g) IMPACT CAPACITY OF RING OR GROOVE WALL = IR = FOR THE RING (INCH POUNDS), ABUTTING COMPONENTS TO HAVE SHARP CORNERS. IG = FOR THE GROOVE (INCH POUNDS). P = ALLOWABLE THRUST LOAD OF RING OR GROOVE (POUNDS). T
39、= RING THICKNESS (INCHES). WHERE: IG = IMPACT CAPACITY OF GROOVE WALL (INCH POUNDS). d = GROOVE DEPTH (INCHES). IR = IMPACT CAPACITY OF RING (INCH POUNDS). (h) LOAD CAPACITY, WITH THE RETAINED PART RADIUSED OR CHAMFERED. THE ALLOWABLE THRUST LOADS, WHEN COMPUTED FROM THE FORMULAS ON PAGE 6, WILL NOT
40、 BE AFFECTED WHEN (E) RINGS ARE USED AGAINST PARTS HAVING CORNER RADII OR CHAMFERS UP TO THE LISTED MAXIMUM DIMENSIONS. 4. CHANGES FROM PREVIOUS ISSUE. MARGINAL NOTATIONS ARE NOT USED IN THIS REVISION TO IDENTIFY CHANGES WITH RESPECT TO THE PREVIOUS ISSUE DUE TO THE EXTENT OF THE CHANGES. MILITARY I
41、NTEREST Custodians: Preparing activity: Army - AR DLA - IS Navy - OS Air Force - 99 (Project 5325-2012-008) Review activities: Army AV, MI NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https:/assist.dla.mil. PT 2 Pd 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
