1、INCH-POUNDMIL-DTL-3100H1 December 1998SUPERSEDINGMIL-DTL-3100G30 September 1998DETAIL SPECIFICATIONWHEEL ASSEMBLIES, SOLID ELASTOMER TIRED ;FOR TRACK LAYING VEHICLESThis specification is approved for use by all Departments and Agencies of theDepartment of Defense.1. SCOPE1.1 Scope . This specificati
2、on covers road wheels, track support rollers, and idler wheelsfor use on military track laying vehicles. These are metal wheels with bonded solid elastomer tires(see 6.1).1.2 Classification . (See 6.5.)2. APPLICABLE DOCUMENTS2.1 General . The documents listed in this section are specified in section
3、s 3 and 4 of thisspecification. This section does not include documents cited in other sections of this specificationor recommended for additional information or as examples. While every effort has been made toensure the completeness of this list, document users are cautioned that they must meet all
4、specified requirement documents cited in sections 3 and 4 of this specification, whether or notthey are listed.Beneficial comments (recommendations, additions, deletions) and any pertinent data which maybe of use in improving this document should be addressed to: U.S. Army Tank -automotive andArmame
5、nts Command, ATTN: AMSTA -TR -E/BLUE, Warren, MI 48397 -5000, by using theStandardization Document Improvement Proposal (DD Form 1426) appearing at the end of thisdocument, or by letter. AMSC N/ A FSC 2630DISTRIBUTION STATEMENT A . Approved for public release; distribution is unlimited.Provided by I
6、HSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3100H22.2 Government documents .2.2.1 Specifications, standards, and handbooks . The following specifications, standards,and handbooks form a part of this document to the extent specified herein. Unless othe
7、rwisespecified, the issues of these documents are those listed in the issue of the Department of DefenseIndex of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation(see 6.2).SPECIFICATIONSDEPARTMENT OF DEFENSEMIL-DTL-45301 - Tread Elastomer : Solid Tire, For Track
8、 LayingVehicles.(Unless otherwise i ndicated, copies of the above specifications, standards, and handbooksare available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D,Philadelphia, PA 19111-5094.)2.2.2 Other Government documents, drawings, and publications . The follow
9、ing otherGovernment documents, drawings, and publications form a part of this document to the extentspecified herein. Unless otherwise specified, the issues are those cited in the solicitation.DRAWINGSARMY5636637 - Disc and Ti re Track Support Roller.7013976 - Disc Assembly, Road Wheel, Complete.870
10、6067 - Wheel Assembly.8762739 - Wheel, Rubber Tire.8763030 - Wheel, Rubber Tire.8763350 - Wheel, Solid Rubber Tire.9092158 - Wheel, Solid Rubber Tire.10887252 - Wheel, Rubber Tire.10891631 - Wheel, Solid Rubber Tired.10919004 - Wheel, Road.10925778 - Wheel Assembly, Road.10954693 - Wheel, Road.11636
11、140 - Wheel, Road.11678270 - Wheel, Solid Rubber Tire.12269415 - Wheel, Solid Rubber Tire.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3100H312274482 - Wheel, Rubber Tire.12290876 - Wheel, Rubber Tire.12292059 - Wheel Support Roller.122969
12、28 - Wheel Support Roller.12313083 - Wheel, Rubber Tired.12324548 - Wheel, Assembly.12358464 - Wheel, Solid Rubber Tire.13211E9207 - Wheel, Solid Rubber Tired.(Copies of these drawings are available from the U.S. Army Tank-automotive andArmaments Command, AMSTA-TR-E/BLUE, Warren, MI 48397-5000.)2.3
13、Non-Government publications . The following documents form a part of thisdocument to the extent specified herein. Unless otherwise specified, the issues of the documentswhich are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues
14、 of documents not listed in the DoDISS are the issues of thedocuments cited in the solicitation (see 6.2).AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI)ANSI/ASQC Z1.4 - Sampling Procedures and Tables for Inspection byAttributes (DoD Adopted).(Application fo r copies may be obtained from the American N
15、ational Standards Institute,11 West 42nd Street, New York, NY 10036.)AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)ASTM D518 - Rubber Deterioration - Surface Cracking(DoD Adopted).ASTM D573 - Rubber Deterioration in an Air Oven (DoD Adopted).ASTM D1149 - Rubber Deterioration - Surface Ozone Crack
16、ing in aChamber (DoD Adopted).ASTM D1415 - Rubber Property - International Hardness(DoD Adopted).ASTM D2137 - Rubber Propert y - Brittleness Point of FlexiblePolymers and Coated Fabrics (DoD Adopted).ASTM D2240 - Rubber Property-Durometer Hardness (DoD Adopted).ASTM D3182 - Rubber - Materials, Equip
17、ment, and Procedures forMixing Standard Compounds and Preparin g StandardVulcanized Sheets (DoD Adopted).Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3100H4ASTM D3183 - Rubber - Preparation of Pieces for Test Purposes fromProducts (DoD Ado
18、pted).(Application for copies may be obtained from the American Society for Testing andMaterials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.)2.4 Order of precedence . In the event of a conflict between the text of this documentand the references cited herein, the text of this document
19、takes precedence. Nothing in thisdocument, however, supersedes applicable laws and regulations unless a specific exemption hasbeen obtained.3. REQUIREMENTS3.1 First article . When specified (see 6.2), a first article sample shall be subjected to firstarticle inspection in accordance with 4.4. 3.2 Ma
20、terials .3.2.1 Tires . Solid tires shall consist of elastomeric compounds which are black in color,and conform to applicable drawings, specifications and standards. Tires for rebuilt wheels shall bemolded from elastomer conforming to MIL-DTL-45301 (see 4.6.1).3.2.2 Wheels . Materials used in metal w
21、heels shall conform to applicable drawings,specifications, and standards (see 4.6.1).3.2.3 Bonding materials . Adhesives, bonding agents, cements, gum compounds, andvulcanizing materials furnished under this specification shall produce bonded elastomer tires thatmeet or exceed the requirements of th
22、e applicable drawing and this specification (see 4.6.1).3.2.4 Recycled, recovered, or environmentally preferable materials . Recycled,recovered, or environmentally preferable materials should be used to the maximum extent possibleprovided that the material meets or exceeds the operational and mainte
23、nance requirements, andpromotes economically advantageous life cycle costs (see 6.4).3.3 Construction . Wheel assemblies furnished under this specification shall be inaccordance with the applicable drawings or as specified by the contracting authority(see 4.6.1, 4.6.2 and 6.2) .3.3.1 Date of origin
24、. Wheel assemblies furnished under this specification shall have beencured and bonded within 6 months immediately preceding date of submission for acceptance(see 4.6.1).Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3100H53.4 Physical and me
25、chanical properties .3.4.1 Hardness . The hardness durometer Shore A or International Rubber HardnessDegrees (IHRD) of elastomer compounds shall be 70 + 7 when tested in accordance with 4.6.3.3.4.2 Accelerated aging characteristics . After aging 166 hours at 158 degreesFahrenheit ( F), within any on
26、e specimen, the change in tensile strength shall be not more than+ 25 percent (%) and the change in elongation shall be not more than + 35% when tested inaccordance with 4.6.3.3.4.3 Low temperature flexibility . At a temperature of -40 F, the specimen shall showno evidence of cracks, fissures, or ho
27、les visible to the naked eye, or complete separation into twoor more pieces when tested in accordance with 4.6.3.1.3.5 Performance . 3.5.1 Endurance requirements . The wheel assembly shall evidence no internal or externalfailure after rolling under the following conditions; however, no one sample sh
28、all be required towithstand operation under both condition sets a and b (see 4.6.4).a. For 48 continuous hours at not less than 10 miles per hour (mph) under 100% loadspecified in table I and tested as specified in 4.6.4.1.b. For 6 continuous hours at not less than 30 mph under 120% load specified i
29、ntable II and test as specified in 4.6.4.2.The tires shall exhibit no cracking, chunking, blowout, separation, blister, contamination,porosity, delamination, or lack of adhesion. Any undercutting shall be not more than 0.25 inch(in.) deep.TABLE I. Wheel assembly loads - 10 mph . 1 /Assembly Pounds p
30、er inch 100% load totalSize (nominal) Part number of width pounds (min.)11 x 3 5636637 385 115511 x 3-7/16 12296928 385 115512-1/2 x 2-1/2 12292059 452 158213-1/2 x 3-1/2 8763030 495 173213-1/2 x 3-3/4 8706067 495 185622 x 1-3/4 10925778 885 154823 x 1-1/4 9092158 935 116824 x 2-1/8 11678270 985 209
31、324 x 2-1/8 8763350 985 2093Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3100H6TABLE I. Wheel assembly loads - 10 mph 1 / - Continued.Assembly Pounds per inch 100% load totalSize (nominal) Part number of width pounds (min.)24 x 2-1/8 12269
32、415 985 209324 x 2-3/8 12313083 985 234424 x 3-3/4 11636140 985 369324 x 3-3/4 10919004 985 369325 x 5-19/32 12274482 1035 578925 x 6 12324548 1035 651026 x 5-3/4 10887252 1085 623826 x 5-3/4 8762739 1-85 623826 x 6 7013976 1-85 651026 x 6 12290876 1-85 651028 x 2-3/4 10954693 1185 325828 x 3-5/16 1
33、3211E9207 1185 3910.532-1/4 x 3-1/2 10891631 1390 486524 x 3-3/4 12358464 985 36931 / Maximum speed or load shall not exceed the specified values by more than 5%without contractor agreement.TABLE II. Wheel assembly loads - 30 mph . 1 /Assembly Pounds per inch 120% loadSize (nominal) Part number of w
34、idth Total pounds (minimum)11 x 3 5636637 155 55811 x 3-7/16 12296928 155 63912-1/2 x 2-1/2 12292059 185 55513-1/2 x 3-1/2 8763030 205 86113-1/2 x 3-3/4 8706067 205 92322 x 1-3/4 10925778 385 80923 x 1-1/4 9092158 410 61524 x 2-1/8 11678270 435 110924 x 2-1/8 8763350 435 110924 x 2-1/8 12269415 435
35、110924 x 2-3/8 12313083 435 124224 x 3-3/4 11636140 435 195724 x 3-3/4 10919004 435 195724 x 3-3/4 12358464 435 195725 x 5-19/32 12274482 455 305425 x 6 12324548 455 345626 x 5-3/4 10887252 480 331226 x 5-3/4 8762739 480 3312Provided by IHSNot for ResaleNo reproduction or networking permitted withou
36、t license from IHS-,-,-MIL-DTL-3100H7TABLE II. Wheel assembly loads - 30 mph 1 / - Continued.Assembly Pounds per inch 120% loadSize (nominal) Part number of width Total pounds (minimum)26 x 6 7013976 480 345626 x 6 12290876 480 345628 x 2-3/4 10954693 530 174928 x 3 13211E9207 530 209932-1/4 x 3-1/2
37、 10891631 630 26461 / Maximum speed or load shall not exceed the specified values by more than 5%without contractor agreement.3.5.2 Adhesion . Wheel assemblies shall exhibit complete adhesion of tire to wheel. There shall be no areas of deficient adhesion. The load required to separate the tread fro
38、m awheel shall be not less than 100 pounds per inch of width on any line of separation around thecircumference (see 4.6.5).3.5.3 Ozone resistance . The elastomer used in solid tires shall evidence no cracks wheninspected at 7 power magnification per ASTM D1149 after being subjected to the tests spec
39、ifiedin 4.6.6.3.6 Finish . Unless otherwise specified (see 6.2), portions of the wheel assembly notcovered by the elastomer shall be treated and painted in accordance with the manufacturersstandard practice (see 4.6.2).3.7 Identification and marking . Unless otherwise specified in the contract order
40、( see 6.2), the elastomer portion of the wheel assembly shall have the following informationmolded or branded into only the outboard side of tire (see 4.6.2):a. Manufacturers name or a pproval symbol.b. Military assembly part number.c. Wheel size : for example, 26 x 6.d. Construction identification
41、(see 6.3).e. Week and year of manufacture (see 6.3.1).f. OZ (symbol to indicate ozone resistant).3.8 Workmanship . Workmanship shall be such quality as to assure that solid-tired wheelassemblies furnished under this specification are, and appear to be, free of defects (see 4.6.2).4. VERIFICATION4.1
42、Inspection equipment . Inspection equipment must be capable of repetitivemeasurements to an accuracy of 10 percent of the measurement tolerance.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3100H84.2 Classification of inspections . The insp
43、ection requirements specified herein areclassified as follows:a. First article inspection (see 4.4).b. Conformance inspe ctions (see 4.5).4.3 Inspection conditions . Unless otherwise specified (see 6.2), all inspections shall beconducted under the following conditions:a. Air temperature : 73 + 18 F.
44、b. Barometric pressure : 28.5 (+2, - 3) in. mercury (Hg).c. Relative humidity : 50 + 30%.4.4 First article inspection . Unless otherwise specified (see 6.2), the Government shallselect 12 wheel assemblies produced under the production contract for first article inspection (see 6.6). Four wheel assem
45、blies shall undergo the 48-hour drum test, four shall undergo the6-hour drum test, and four shall undergo the adhesion test. No one sample shall undergo morethan one of these three tests. First article samples shall be inspected as specified in table III. Approval of the first article sample by the
46、Government shall not relieve the contractor of hisobligation to supply wheel assemblies that are fully representative of those inspected as a firstarticle sample. Any changes or deviation of the production units from the first article sample shallbe subject to the approval of the contracting officer
47、.TABLE III. Classification of inspections .ConformanceTitle Requirement InspectionFirstarticleExamin-ation TestsMaterials and construction 3.2 thru 3.3.1 4.6.1 XDefects (see table IV) 1 / 3.3, 3.6, 3.7and 3.84.6.2 X XHardness 1 / 3.4.1 4.6.3 XAccelerated aging 1 / 3.4.2 4.6.3 XLow temperature flexib
48、ility 1 / 3.4.3 4.6.3.1 XEndurance (48-hour drum) 3.5.1 4.6.4.1 X XEndurance (6-hour drum) 3.5.1 4.6.4.2 X XAdhesion 3.5.2 4.6.5 X XOzone resistance 1 / 3.5.3 4.6.6 X1 / Test specimens shall be taken from units selected for adhesion test.4.5 Conformance inspection . Conformance inspection shall incl
49、ude the examination of4.5.2 and the tests of 4.5.3.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-3100H94.5.1 Sampling . Unless otherwise specified (see 6.2), samples for examination and tests,from an inspection lot, shall be selected in accordance with ANSI/
