1、MS24466K21 September 1998MS24466J05 December 1994MILITARY SPECIFICATION SHEETBEARING, ROLLER, NEEDLE-DOUBLE ROW,HEAVY DUTY, TRACK ROLLER, TYPE VI,ANTIFRICTION, INCHThis specification sheet is approved for use by all Departments andAgencies of the Department of Defense.The requirements for acquiring
2、the product described herein shall consist of thisspecification sheet and the issue of the following specification listed in that issue of theDepartment of Defense Index of Specifications and Standards (DoDISS) specified in thesolicitation : MIL-B-3990.FIGURE 1. Bearing section .INACTIVE FOR NEW DES
3、IGNUSE MS21439AMSC N/A 1 of 5 FSC 3110DISTRIBUTION STEMENT. Approved for public release; distribution is unlimited.INCH - POUNDProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Bearing properties.DIMENSIONS IN INCHESDASH NO.dBOREDOUTER RING OU
4、TSIDE DIA.B OVER ALL WIDTHC OUTER RING WIDTHC1TRACK CONT- ACT WIDTH d 1WASHER OUTSIDE DIA.B1LUBRI- CATION GROOVE WIDTHr a 1/FILLET MAXTOTAL RADIAL CLEAR- ANCE MAXd aCLAMP- ING DIA. MIN2/LIMIT LOAD RATING LBF3/LOAD RATING AS A TRACK ROLLER LBFTRACK CAP- ACITY 40HRC LBFMASS (APPROX) LB-6 -8 -10 -12 -1
5、4 -16 -20 -24 -28 -320.3750 0.5000 0.6250 0.7500 0.8750 1.0000 1.2500 1.5000 1.7500 2.00001.1250 1.3750 1.6250 1.8750 2.1250 2.3750 2.7500 3.0000 3.4375 3.87501.000 1.250 1.500 1.750 2.000 2.250 2.500 2.750 3.000 3.0000.875 1.125 1.375 1.625 1.875 2.049 2.299 2.549 2.792 2.7990.750 1.000 1.125 1.375
6、 1.625 1.794 2.044 2.294 2.544 2.5441.000 1.250 1.500 1.750 2.000 2.215 2.500 2.750 3.187 3.6250.188 0.250 0.375 0.375 0.375 0.375 0.375 0.375 0.375 0.3750.022 0.032 0.032 0.032 0.032 0.032 0.032 0.032 0.032 0.0320.0014 0.0014 0.0014 0.0014 0.0015 0.0015 0.0015 0.0015 0.0015 0.00150.672 0.891 1.109
7、1.281 1.469 1.578 1.844 1. 984 2.281 2.5627130 12500 19900 28500 38500 44900 59500 71300 92000 1020005370 9370 15000 21400 28900 33600 44600 35600 69000 766002600 4250 5650 7950 10650 13200 17300 21200 27000 304000.228 0.416 0.693 1.08 1.55 2.20 3.10 4.12 5.80 7.001/ The chamfer on the bearing shall
8、 clear the maximum fillet radius given in the table. However, this specification does not controlbearing chamfer contours.2/ The limit load rating listed can be defined as the maximum radial load which can be applied to a bearing without impairingthe subsequent functioning of the bearing. The ultima
9、te or static fracture load rating shall be not less than 1.5 times the limitload rating.3/ The load rating as a track roller is the load the bearing will carry as a track roller for a L-10 life of 20,000 revolutions.2MS24466KProvided by IHSNot for ResaleNo reproduction or networking permitted withou
10、t license from IHS-,-,-TABLE II. Bearing properties.DIMENSIONS IN MILLIMETERSDASH NO.dBOREDOUTER RING OUTSIDE DIA.B OVER ALL WIDTHC OUTER RING WIDTHC1TRACK CONTACT WIDTH d 1WASHER OUTSIDE DIA.B1LUBRI- CATION GROOVE WIDTHr a 1/FILLET MAXTOTAL RADIAL CLEAR- ANCE MAXd aCLAMP- ING DIA. MIN2/LIMIT LOAD R
11、ATING M3/LOAD RATING AS A TRACK ROLLER MTRACK CAP- ACITY 40HRC MMASS (APPROX) KG-6 -8 -10 -12 -14 -16 -20 -24 -28 -329.325 12.700 15.875 19.050 22.250 25.400 31.750 38.100 44.450 50.80028.575 34.925 41.275 47.625 53.975 60.325 69.850 76.200 87.312 98.42525.40 31.75 38.10 44.45 50.80 57.15 63.50 69.8
12、5 76.20 76.2022.22 28.58 34.92 41.28 47.62 52.04 58.39 64.74 71.09 71.0919.05 25.40 28.58 34.92 41.28 45.57 51.92 58.27 64.62 64.6225.40 31.75 38.10 44.45 50.80 53.98 63.50 69.85 80.95 92.084.78 6.35 9.51 9.52 9.52 9.52 9.52 9.52 9.52 9.520.6 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.80.036 0.036 0.036 0.03
13、6 0.038 0.038 0.038 0.038 0.038 0.03817.07 22.63 28.17 32.54 37.31 40.08 46.84 50.39 57.94 65.0731800 55500 88700 127000 171000 199000 265000 318000 409000 45300023900 41700 66700 95200 129000 149000 198000 238000 307000 34100011600 18900 25100 35400 47400 58700 77000 94300 120000 1350000.104 0.189
14、0.315 0.49 0.70 1.00 1.41 1.87 2.64 3.181/ The chamfer on the bearing shall clear the maximum fillet radius given in the table. However, this specification does not controlbearing chamfer contours.2/ The limit load rating listed can be defined as the maximum radial load which can be applied to a bea
15、ring without impairingthe subsequent functioning of the bearing. The ultimate or static fracture load rating shall be not less than 1.5 times the limit load rating.3/ The load rating as a track roller is the load the bearing will carry as a track roller for a L-10 life of 20,000 revolutions.3MS24466
16、KProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE III. Tolerance limits.DIMENSIONS IN INCHESdBASIC BOREALLOWABLE DEVIATION FROM d OF SINGLE MEAN DIA, dALLOWABLE DEVIATION FROM OVER- ALL WIDTH BALLOWABLE DEVIATION FROM WASHER OUTSIDE DIA, d 1ALLO
17、WABLE DEVIATION FROM LUBRI- CATION GROOVE WIDTH B1 DBASIC OUTER RING OUTSIDE DIAALLOWABLE DEVIATION FROM D OF SINGLE MEAN DIA, DALLOWABLE DEVIATION FROM OUTER RING WIDTH, COVERINCLHIGHLOWHIGHLOWHIGHLOWHIGHLOWOVERINCLHIGHLOWHIGHLOW0.25002.0000+00.0007+0-0.005+0.010-0.010+00.0621.00003.8750+00.0010+00
18、.005TABLE IV. Tolerance limits.DIMENSIONS IN MILLIMETERSdBASIC BOREALLOWABLE DEVIATION FROM d OF SINGLE MEAN DIA, dALLOWABLE DEVIATION FROM OVER- ALL WIDTH BALLOWABLE DEVIATION FROM WASHER OUTSIDE DIA, d 1ALLOWABLE DEVIATION FROM LUBRI- CATION GROOVE WIDTH B1 DBASIC OUTER RING OUTSIDE DIAALLOWABLE D
19、EVIATION FROM D OF SINGLE MEAN DIA, DALLOWABLE DEVIATION FROM OUTER RING WIDTH, COVERINCLHIGHLOWHIGHLOWHIGHLOWHIGHLOWOVERINCLHIGHLOWHIGHLOW6.35050.800+00.018+00.13+0.250.25+01.0625.40094.425+0-0.025+00.13TABLE V. Oil hole data.BORE-DASH NO.NUMBER OF HOLESOVERINCLINNER RING33244MS24466KProvided by IH
20、SNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MS24466KREQUIREMENTS:1. MATERIAL : SAE-AMS6274; ASTM-A304, ASTM-A576, ASTM-A675 ;QQ-S-700; FED-STD-66, Steel 50100, 51100, and 52100.2. PLATING : OD and sides of outer ring, chromium plate, QQ-C-320, Class 2.Thicknes
21、s: .013- .025 (.0005-.0010 inches). Other surfaces, excluding inner ring bore, zinc-nickel plating per SAE-AMS 2417, Type 2, or cadmium plating in accordance with QQ-P-416,Type 1, Class 2, with a thickness of .0003 to .0006 inches.3. MACHINE FINISH : ASME-B46.1, see procurement specification.4. LUBR
22、ICATION : Grease conforming to MIL-PRF-81322.5. Dimensions to be met after plating, remove all burrs and sharp edges.CONCLUDING MATERIALCustodians: Preparing activity:Army AT Navy ASNavy - ASAir Force 99 (Project 3110-1138)Review Activities:Air Force - 84DLA - GS5Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
