1、MS16628C 14 March 2012 SUPERSEDING MS16628B 4 May 1990 DETAIL SPECIFICATION SHEET RING, RETAINING, EXTERNAL, BOWED (TAPERED 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 s
2、hall 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-,-,-TABLE I DIMENSIONS. S SHAFT (REF) D FREE B LUG HEIGHT E LARGE
3、SECTION HEIGHT J SMALL SECTION HEIGHT T 1/ THICKNESS Y OVERALL BOW HEIGHT G W WIDTH K 3/ C 4/ CLEAR O 5/ TAKE UP R 6/ CH 6/ RECOMMENDED GROOVE (REF) OF RETAINED PART (REF) INCH MM BASIC TOL BASIC TOL BASIC TOL BASIC TOL BASIC TOL BASIC TOL BASIC TOL BASIC TOL MAX MAX MAX MAX .188 4.8 .168 .050 .025
4、.016 .015 .036 .175 .0015 .030 .218 .298 .015 .014 .008 .197 5.0 .179 +.002 .056 .002 .026 .002 .016 .002 .015 .036 .185 .0015 .030 +.003 .229 .319 .015 .014 .009 .219 5.6 .196 -.004 .056 .028 .017 .015 .036 .205 FIM 2/ .030 -.000 .252 .338 .015 .015 .009 .236 6.0 .215 .056 .030 .019 .015 .036 .222
5、.030 .272 .355 .015 .016 .010 .250 6.4 .225 .080 .035 .025 .025 .047 .230 .040 .290 .450 .015 .018 .011 .276 7.0 .250 .081 .035 .024 .025 .047 .255 .040 .315 .480 .015 .017 .010 .281 7.1 .256 .080 .038 .025 .025 .047 .261 .040 .326 .490 .015 .020 .012 .312 7.9 .281 .087 .040 .003 .026 .003 .025 .047
6、 .006 .290 .002 .040 .357 .540 .015 .020 .012 .344 8.7 .309 .087 .042 .026 .025 .047 .321 .002 .040 .390 .570 .015 .021 .012 .354 9.0 .320 .087 .046 .029 .025 .047 .330 FIM 2/ .040 .405 .590 .015 .023 .014 .375 9.5 .338 .088 .050 .030 .025 .047 .352 .040 .433 .610 .015 .026 .015 .394 10.0 .354 +.002
7、 .087 .052 .031 .025 .002 .047 .369 .040 .452 .620 .015 .027 .016 .406 10.3 .366 -.005 .087 .003 .054 .033 .025 .047 .382 .040 .468 .630 .015 .028 .017 .438 11.1 .395 .088 .055 .033 .025 .047 .412 .040 .501 .660 .015 .029 .017 .469 11.9 .428 .088 .060 .035 .025 .047 .443 .040 .540 .680 .015 .031 .01
8、8 .02 .500 12.7 .461 .108 .065 .040 .035 .063 .468 .004 .055 .574 .770 .020 .034 .020 .551 14.0 .509 .108 .053 .036 .035 .063 .519 FIM 2/ .055 .611 .810 .020 .027 .016 .562 14.3 .521 .108 .072 .041 .035 .063 .530 .055 +.005 .644 .820 .020 .038 .023 .594 15.1 .550 .109 .076 .004 .043 .004 .035 .063 .
9、007 .559 .055 -.000 .680 .860 .020 .039 .023 .625 15.9 .579 .110 .080 .045 .035 .063 .588 .055 .715 .900 .020 .041 .025 .669 17.0 .621 .110 .082 .043 .035 .063 .629 .003 .055 .756 .930 .020 .040 .024 .672 17.1 .621 +.005 .110 .082 .043 .035 .063 .631 .004 .055 .758 .930 .020 .040 .024 .668 17.5 .635
10、 -.010 .136 .084 .048 .042 .073 .646 FIM 2/ .062 .779 1.010 .020 .042 .025 .750 19.0 .693 .136 .092 .051 .042 .073 .704 .062 .850 1.090 .020 .046 .027 .781 19.8 .722 .136 .094 .052 .042 .073 .733 .062 .883 1.120 .020 .047 .028 .812 20.6 .751 .136 .096 .005 .054 .005 .042 .073 .008 .762 .062 .914 1.1
11、50 .020 .047 .028 .875 22.2 .810 .137 .104 .057 .042 .073 .821 .062 .987 1.210 .020 .051 .030 .938 23.8 .867 .166 .110 .063 .042 .073 .882 .062 1.054 1.340 .020 .055 .033 .984 25.0 .910 .167 .114 .064 .042 .073 .926 .062 1.106 1.390 .020 .056 .033 1.000 25.4 .925 .167 .116 .065 .042 .073 .940 .062 1
12、.122 1.410 .020 .057 .034 1.023 26.0 .946 .168 .118 .066 .042 .073 .961 .062 1.147 1.430 .020 .058 .035 1.062 27.0 .982 .181 .004 .122 .069 .050 .085 .998 .070 1.192 1.500 .020 .060 .036 1.125 28.6 1.041 .182 .128 .071 .050 .085 1.059 .070 1.261 1.550 .020 .063 .038 1.188 30.2 1.098 .182 .132 .072 .
13、050 .085 1.118 .070 1.325 1.610 .020 .064 .038 1.250 31.7 1.156 .183 .140 .006 .076 .006 .050 .085 .012 1.176 .004 .070 1.396 1.690 .020 .068 .041 .05 1.312 33.3 1.214 +.010 .183 .146 .076 .050 .085 1.232 FIM 2/ .070 1.458 1.750 .020 .068 .041 1.375 34.9 1.272 -.015 .184 .152 .082 .050 .085 1.291 .0
14、70 1.529 1.800 .020 .072 .043 1.438 36.5 1.333 .184 .160 .086 .050 .085 1.350 .070 1.600 1.870 .020 .076 .045 1.500 38.1 1.387 .214 .168 .091 .050 .085 1.406 .070 1.668 1.990 .020 .079 .047 1/ T - THICKNESS “T” APPLIES TO UNPLATED RINGS. FOR CORROSION RESISTANT STEEL AND PLATED RINGS, +.002 SHOULD B
15、E 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/ K - MAXIMUM DIAMETER WHEN THE RING IS PROPERLY SEATED IN THE GROOVE. (DESIGN REFERENCE DIMENSION). 4/ C - ACT
16、UAL CLEARANCE DIAMETER WHEN THE RING IS SPRUNG OVER THE SHAFT PRIOR TO INSTALLATION INTO THE GROOVE. (DESIGN REFERENCE DIMENSION). 5/ O - END PLAY TAKE UP (DESIGN REFERENCE DIMENSION). 6/ R AND CH - RADII OR CHAMFERS ALLOWABLE ON PARTS TO BE RETAINED BY THE RING. THRUST LOADS OF RINGS, RETAINING PAR
17、TS WITH CORNER RADII OR CHAMFERS ARE TABULATED ON PAGE 6. .MS16628C2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-REQUIREMENTS: 1. CLASSIFICATION: RETAINING RINGS FURNISHED UNDER THIS STANDARD SHALL BE TYPE II, CLASS 2 OF THE PROCUREMENT SPECIFICAT
18、ION. 2. MATERIAL: (a) CARBON SPRING STEEL,GRADE 1060 THRU 1095 (UNS G10600 THRU G10950) IN ACCORDANCE WITH ASTM A568/A568M OR ASTM A684/A684M. (b) CORROSION RESISTANT STEEL IN ACCORDANCE WITH AMS 5520 (UNS S15700). (c) BERYLLIUM COPPER, ALLOY NUMBER 170 (UNS C17000) OR ALLOY NUMBER 172 (UNS C17200)
19、IN ACCORDANCE WITH ASTM B194. 3. HARDNESS: TABLE II. HARDNESS. SHAFT (REF) CARBON STEEL CORROSION RESISTANT STEEL BERYLLIUM COPPER .188 TO .236 INCL - - 77.9-82.0 HR15N 1/ (39-43 HRC EQUIV) .250 TO .551 INCL 85.5-87.9 HR15N 1/ (50-55 HRC EQUIV) 83.5-85.9 HR15N 1/ (46-51 HRC EQUIV) 77.9-82.0 HR15N 1/
20、 (39-43 HRC EQUIV) .562 TO .669 INCL 68.5-73.0 HR30N 1/ (50-55 HRC EQUIV) 64.8-69.4 HR30N 1/ (46-51 HRC EQUIV) 58.6-62.2 HR30N 1/ (39-43 HRC EQUIV) .688 TO 1.500 INCL 52.5-58.6 HR45N 1/ (48-53 HRC EQUIV) 50.3-56.1 HR45N 1/ (46-51 HRC EQUIV) 41.9-46.7 HR45N 1/ (39-43 HRC EQUIV) 1/ USE HIGHEST SCALE T
21、O PROVIDE SECTION WIDTH EQUAL TO OR GREATER THAN 5 TIMES THE BRAILE IMPRESSION DIAMETER. 4. PROTECTIVE FINISH OR SURFACE TREATMENT: (a) CARBON STEEL SHALL BE AS SPECIFIED (SEE TABLE III OR IV): (1) CADMIUM PLATE IN ACCORDANCE WITH SAE AMS-QQ-P-416, TYPE II, CLASS 3 OR ASTM B696, TYPE II, CLASS 5. (2
22、) ZINC COAT IN ACCORDANCE WITH ASTM B633, TYPE II, CLASS Fe/Zn 5 OR ASTM B695, 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 NUMBER: THE BASIC MS
23、PART NUMBER IS FOLLOWED BY A DASH NUMBER TAKEN FROM TABLE III AND IV. EXAMPLE: MS16628-1100 IS THE PART NUMBER FOR A CARBON STEEL, CADMIUM PLATE, EXTERNAL, BOWED RETAINING RING FOR USE IN A 1.000 DIAMETER SHAFT. MS16628C 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without
24、license from IHS-,-,-TABLE III. DASH NUMBERS FOR MS16628. S SHAFT (REF) 1/ CARBON STEEL CADMIUM PLATE 1/ CARBON STEEL ZINC COAT 1/ CARBON STEEL PHOSPHATE COAT STEEL CORROSION RESISTANT 1/ BERYLLIUM COPPER 1/ BERYLLIUM COPPER CADMIUM PLATE DASH NO. DASH NO. DASH NO. DASH NO. DASH NO. DASH NO. .188 -5
25、018 -5018-1 .197 -5019 -5019-1 .219 -5021 -5021-1 .236 -5023 -5023-1 .250 -1025 -2025 -3025 -4025 -5025 -5025-1 .276 -1027 -2027 -3027 -4027 -5027 -5027-1 .281 -1028 -2028 -3028 -4028 -5028 -5028-1 .312 -1031 -2031 -3031 -4031 -5031 -5031-1 .344 -1034 -2034 -3034 -4034 -5034 -5034-1 .354 -1035 -2035
26、 -3035 -4035 -5035 -5035-1 .375 -1037 -2037 -3037 -4037 -5037 -5037-1 .394 -1039 -2039 -3039 -4039 -5039 -5039-1 .406 -1040 -2040 -3040 -4040 -5040 -5040-1 .438 -1043 -2043 -3043 -4043 -5043 -5043-1 .469 -1046 -2046 -3046 -4046 -5046 -5046-1 .500 -1050 -2050 -3050 -4050 -5050 -5050-1 .551 -1055 -205
27、5 -3055 -4055 -5055 -5055-1 .562 -1056 -2056 -3056 -4056 -5056 -5056-1 .594 -1059 -2059 -3059 -4059 -5059 -5059-1 .625 -1062 -2062 -3062 -4062 -5062 -5062-1 .669 -1066 -2066 -3066 -4066 -5066 -5066-1 .672 -1067 -2067 -3067 -4067 -5067 -5067-1 .688 -1068 -2068 -3068 -4068 -5068 -5068-1 .750 -1075 -20
28、75 -3075 -4075 -5075 -5075-1 .781 -1078 -2078 -3078 -4078 -5078 -5078-1 .812 -1081 -2081 -3081 -4081 -5081 -5081-1 .875 -1087 -2087 -3087 -4087 -5087 -5087-1 .938 -1093 -2093 -3093 -4093 -5093 -5093-1 .984 -1098 -2098 -3098 -4098 -5098 -5098-1 1.000 -1100 -2100 -3100 -4100 -5100 -5100-1 1.023 -1102
29、-2102 -3102 -4102 -5102 -5102-1 1.062 -1106 -2106 -3106 -4106 -5106 -5106-1 1.125 -1112 -2112 -3112 -4112 -5112 -5112-1 1.188 -1118 -2118 -3118 -4118 -5118 -5118-1 1.250 -1125 -2125 -3125 -4125 -5125 -5125-1 1.312 -1131 -2131 -3131 -4131 -5131 -5131-1 1.375 -1137 -2137 -3137 -4137 -5137 -5137-1 1.43
30、8 -1143 -2143 -3143 -4143 -5143 -5143-1 1.500 -1150 -2150 -3150 -4150 -5150 -5150-1 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). 4 MS16628C Provided by IHSNot for ResaleNo reproductio
31、n or networking permitted without license from IHS-,-,-TABLE IV. SUBSTITUTION TABLE (CROSS REFERENCE OF PART NUMBERS). INACTIVE SUBSTITUTE SUBSTITUTE SUBSTITUTE S SHAFT (REF) CARBON STEEL 1/ CARBON STEEL CADMIUM PLATE 1/ CARBON STEEL ZINC COAT 1/ CARBON STEEL PHOSPHATE COAT MS16628 MS16628 MS16628 M
32、S16628 .250 -25 -1025 -2025 -3025 .276 -27 -1027 -2027 -3027 .281 -28 -1028 -2028 -3028 .312 -31 -1031 -2031 -3031 .344 -34 -1034 -2034 -3034 .354 -35 -1035 -2035 -3035 .375 -37 -1037 -2037 -3037 .394 -39 -1039 -2039 -3039 .406 -40 -1040 -2040 -3040 .438 -43 -1043 -2043 -3043 .469 -46 -1046 -2046 -3
33、046 .500 -50 -1050 -2050 -3050 .551 -55 -1055 -2055 -3055 .562 -56 -1056 -2056 -3056 .594 -59 -1059 -2059 -3059 .625 -62 -1062 -2062 -3062 .669 -66 -1066 -2066 -3066 .672 -67 -1067 -2067 -3067 .688 -68 -1068 -2068 -3068 .750 -75 -1075 -2075 -3075 .781 -78 -1078 -2078 -3078 .812 -81 -1081 -2081 -3081
34、 .875 -87 -1087 -2087 -3087 .938 -93 -1093 -2093 -3093 .984 -98 -1098 -2098 -3098 1.000 -100 -1100 -2100 -3100 1.023 -102 -1102 -2102 -3102 1.062 -106 -1106 -2106 -3106 1.125 -112 -1112 -2112 -3112 1.188 -118 -1118 -2118 -3118 1.250 -125 -1125 -2125 -3125 1.312 -131 -1131 -2131 -3131 1.375 -137 -113
35、7 -2137 -3137 1.438 -143 -1143 -2143 -3143 1.500 -150 -1150 -2150 -3150 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). 5 MS16628C Provided by IHSNot for ResaleNo reproduction or network
36、ing permitted without license from IHS-,-,-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 HEREIN, THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE. 3. RECOMMENDED DESIGN LIMITATIONS AND USAGE
37、: (a) INTENDED USE - TO PROVIDE SHOULDERS FOR POSITIONING AND RETAINING MACHINE COMPONENTS ON SHAFTS. THE RINGS ARE BENT LIKE A BOW OUT OF PLANE. FREE ENDS AND OPPOSITE EDGE ABUT MACHINE PART, MID-SECTION OF RING ABUTS OUTER GROOVE WALL. RING WILL TAKE UP END PLAY RESILIENTLY. THE RING WILL COUNTERA
38、CT CONSIDERABLE CENTRIFUGAL FORCES. THE USE OF THE FOLLOWING FORMULAS ARE BASED ON THE FACT THAT THE RING MATERIAL 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
39、 INSTALLATION SINCE THIS WILL LEAD TO RING FAILURE. IF THE RING HAS PLAY BETWEEN THE GROOVE DIAMETER AND THE INSIDE RING DIAMETER THIS INDICATES THAT THE RING HAS BEEN OVER EXPANDED, (PROVIDING THE GROOVE DIAMETER HAS BEEN MACHINED TO RECOMMENDED DIMENSIONS). FOR APPROXIMATE SAFETY RPM LIMITS SEE TA
40、BLE V. TABLE V. APPROXIMATE SAFETY RPM LIMITS. SHAFT (INCHES) .250 .500 1 1.500 CARBON STEEL AND CORROSION RESISTANT STEEL RPM LIMIT 80,000 40,000 20,000 15,000 BERYLLIUM COPPER RPM LIMIT 50,000 25,000 13,000 11,000 (b) ALLOWABLE THRUST LOAD CAPACITY OF THE RING (ABUTTING COMPONENTS TO HAVE SHARP CO
41、RNERS) = P = ALLOWABLE THRUST LOAD (POUNDS) S = SHAFT DIAMETER (INCHES) P = STX T = RING, THICKNESS (INCHES) F WHERE: X = ULTIMATE SHEAR STRENGTH OF THE RING MATERIAL (PSI) 1/ F = FACTOR OF SAFETY. A FACTOR OF SAFETY, F=4, IS RECOMMENDED SINCE THE RING UNDER LOAD IS SUBJECTED NOT ONLY TO PURE SHEAR
42、STRESSES, BUT ALSO TO BENDING STRESSES. (c) ALLOWABLE LOAD CAPACITY OF GROOVE WALL = P = ALLOWABLE COMPRESSION LOAD (POUNDS) S = SHAFT DIAMETER (INCHES) P = SdY. d = GROOVE DEPTH (INCHES) F WHERE: Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE MATERIAL (PSI) F = FACTOR OF SAFETY TO INSURE A SAFE WO
43、RKING LOAD A SAFETY FACTOR, F=2, IS RECOMMENDED. (d) MINIMUM DISTANCE BETWEEN OUTER GROOVE WALL AND END OF HOUSING = Z = MINIMUM DISTANCE BEWTWEEN OUTER GROOVE WALL Z = 3d AND END OF SHAFT (INCHES) WHERE: d = GROOVE DEPTH (INCHES) MS16628C 6 Provided by IHSNot for ResaleNo reproduction or networking
44、 permitted without license from IHS-,-,-(e) LOCATION OF GROOVE = LMAX = MMIN + TMIN + TAKE-UP (AS LISTED) LMIN = MMAX + TMAX + .005 2/ TAKE-UP L + M + T + .005 WHERE: L = LMAX - LMIN M = MMAX - MMIN T =TMAX - TMIN 1/ X = 120,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS UP TO AND INCLUDING .672 INCH SHA
45、FT DIAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 150,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS .688 INCH AND OVER SHAFT DIAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL. X = 110,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS OF ALL SHAFT DIAMETERS AND OF BERYLLIUM COPPER. 2/ IT IS ADVIS
46、ABLE FOR SAFER RING ASSEMBLY TO CALCULATE LMIN WITH ADDITIONAL .005” IN ORDER THAT THE RING IS NOT FLATTENED OUT COMPLETELY IN ADVERSE TOLERANCE CASES. (f) VIBRATION = A RETAINING RING WILL BE SECURE AGAINST VIBRATION IF ITS SHEAR FATIGUE STRENGTH EQUALS OR EXCEEDS THE FORCE CREATED BY THE MASS OF T
47、HE PART BEING REPEATEDLY ACCELERATED AGAINST THE RING. (1) SHEAR STRENGTH OF RING (CRITICAL) (ABUTTING COMPONENTS TO HAVE SHARP CORNERS) = XT 1.1 S W a X = ULTIMATE SHEAR STRENGTH OF RING MATERIAL (PSI) 3/ g T = RING THICKNESS (INCHES) WHERE: S = SHAFT DIAMETER (INCHES) OR FOR HARMONIC MOTION W = WE
48、IGHT OF ABUTTING PARTS (POUNDS) g = ACCELERATION DUE TO GRAVITY (IN/SEC2) a = w2= AMPLITUDE OF VIBRATION (INCHES) w = ANGULAR SPEED (RAD/SEC) XT 1.1 S W w2a = ACCELERATION (IN/SEC2) g (2) COMPRESSIVE STRENGTH OF GROOVE MATERIAL (CRITICAL) = 1.65YdS W 2 Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE g WHERE: MATERIAL (PSI) d = GROOVE DEPTH (INCHES) OTHER SYMBOLS AS SHOWN IN (1) (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 THRU
