1、 MS51068E 15 January 2009 SUPERSEDING MS51068D 26 January 1981 DETAIL SPECIFICATION SHEET BELTS, V: ENGINE ACCESSORY DRIVE (0.750 INCH WIDTH) This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described here
2、in shall consist of this specification sheet and MIL-DTL-11040. (0.750) inch accessory drive belts are not recommended for new design Effective length Effective length Effective length Effective length Dash no. Inches mm Dash no. Inches mm Dash no. Inches mm Dash no. Inches mm -20 20 508.0 -31 31 78
3、7.4 -42 42 1066.8 -53 53 1346.2 -21 21 533.4 -32 32 812.8 -43 43 1092.2 -54 54 1371.6 -22 22 558.8 -33 33 838.2 -44 44 1117.6 -55 55 1397.0 -23 23 584.2 -34 34 863.6 -45 45 1143.0 -56 56 1422.4 -24 24 609.6 -35 35 889.0 -46 46 1168.4 -57 57 1447.8 -25 25 635.0 -36 36 914.4 -47 47 1193.8 -58 58 1473.
4、2 -26 26 660.4 -37 37 939.8 -48 48 1219.2 -59 59 1498.6 -27 27 685.8 -38 38 965.2 -49 49 1244.6 -60 60 1524.0 -28 28 711.2 -39 39 990.6 -50 50 1270.0 -68 68 1727.2 -29 29 736.6 -40 40 1016.0 -51 51 1295.4 -70 70 1778.0 -30 30 762.0 -41 41 1041.4 -52 52 1320.8 -76 76 1930.4 INCH-POUND FIGURE 1. V, be
5、lt: engine accessory drive. AMSC N/A FSC 3030Provided by IHSNot for Resale-,-,-MS51068E 2 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for information only. 3. The Part or Identifying Number (PIN) shall consist of the MS sheet number plus the length dash number. When a plain b
6、ased belt is required, the dash (-) shall be deleted and code letter “P” shall be added. When a notched or cogged based belt is required, the dash shall be deleted and the code letter “C” shall be added. When grade “B” belts are required, the letter “B” shall be added after the length dash number. W
7、hen a matched set of belts is required, a second dash number shall be included after the base, length, and grade dash number. 4. Oil-resistance as specified in MIL-DTL-11040 when oil-resistance is specified, the PIN shall include the letter “R”. 5. Belt lengths as specified are in terms of effective
8、 length as measured in accordance with the acquisition specification. These lengths cannot be compared to inside or outside circumference measurements. 6. Plain and notched (cogged) base belts are completely interchangeable on most drives when a plain or notched (cogged) base belt is specifically re
9、quired. The user shall forward to the procuring activity information to substantiate the particular base configuration drive configuration, pulley sizes, rpm of driver pulley, horsepower requirements of each driven pulley, ambient temperature in which belt must operate, item belt is used on, and oth
10、er pertinent information. 7. MS51068 belts (MIL-DTL-11040) are a -65F, use (-54C) belts, if -65F is not a requirement of the end item, do not use this specification conform to A-A-52155 belts. 8. For design feature purposes, this specification takes precedence over procurement documents referenced h
11、erein. 9. Referenced documents shall be of the issue in effect on date of invitations for bids, or request for proposal, except that referenced adopted industry documents shall give the date of the issue adopted. Examples: Single belt, option of plain, notched or cogged, grade A MS51068 - 30 Effecti
12、ve length MS number Single belt, plain based, grade B MS51068 P 30 B Plain baseEffective length Grade BMS number FIGURE 1. V, belt: engine accessory drive - Continued. Provided by IHSNot for Resale-,-,-MS51068E 3 Single belt, notched or cogged base, grade B MS51068 C 30 B Notched or coggedEffective
13、lengthGrade B MS number Matched set of belt, option of plain, notched or cogged base, grade A MS51068 -30 - 4 Number of Belts in Set Effective length MS numberMatched set of belt, notched or cogged base, grade B MS51068 C 30 B 4 Effective lengthGrade B MS numberNotched or CoggedNumber of Belts in Se
14、t Single belt, option of plain, notched or cogged, grade A MS51068 R 30 Oil-ResistanceEffective length MS number FIGURE 1. V, belt: engine accessory drive - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHSMS51068E 4 Single belt, plain base, gra
15、de B MS51068 R P 30 B Grade B Plain BaseEffective length Oil-ResistanceMS numberFIGURE 1. V, belt: engine accessory drive - Continued. Dimensions: See figure 1. Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to
16、 the extent of the changes. Referenced documents. In addition to MIL-DTL-11040, this document references the following: A-A-52155 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AT DLA - CC Navy - YD Air Force - 99 DLA - CC (Project 3030-2008-007) Review activities: Army - AR Navy - AS, M
17、C, SH 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 http:/assist.daps.dla.mil. Provided by IHSNot for Resale-,-,-
