1、INCH-POUND A-A-59494A 28 April 2010 SUPERSEDING A-A-59494 17 September 1999 COMMERCIAL ITEM DESCRIPTION WHEELS AND HUBS FOR INDUSTRIAL PNEUMATIC TIRES The General Services Administration has authorized the use of this commercial item description for all federal agencies. 1. SCOPE. This commercial it
2、em description (CID) covers the general requirements for wheels and hubs, with or without industrial pneumatic tires and tubes. Requirements for specific wheel and hub assemblies are covered in the individual CID specification sheets. Wheels and hubs, with or without industrial pneumatic tires and t
3、ubes covered by this CID are intended for commercial/industrial applications. 2. CLASSIFICATION/PART OR IDENTIFICATION NUMBER (PIN). This CID uses a classification system which is included in the PIN as shown in the following example (see 7.1). AA59494 /02 - 001 CID number Applicable CID specificati
4、on sheet (two digits) Dash number (see applicable CID specification sheet) 3. SALIENT CHARACTERISTICS. 3.1 Interface and physical dimensions. Wheels, hubs, and tires supplied to this CID shall be as specified on the applicable CID specification sheet. 3.2 CID specification sheet. The family of wheel
5、s, hubs, and tires shall be in accordance with the requirements specified herein and the applicable CID specification sheet. In the event of a conflict between this general CID and the applicable CID specification sheet, the latter shall govern. 3.3 Performance. 3.3.1 Pressure loads. Wheels, when mo
6、unted with tires and tubes, shall not deform when the tires and tubes are subjected to the inflation pressure specified in table I. AMSC N/A FSC 2530 Beneficial comments, recommendations, additions, deletions, clarifications, etc., and any data that may improve this document should be sent to: Defen
7、se Supply Center, Columbus, ATTN: DSCC-VAI, P.O. Box 3990, Columbus, OH 43218-3990, or emailed to Constructiondscc.dla.mil . Since contact information can change you may want to verify the currency of this address information using the ASSIST Online database at https:/assist.daps.dla.mil. Provided b
8、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59494A 2 TABLE I. Minimum wheel deformation inflation pressure. Size Ply rating Inflation pressure, psi 3.50-6 4-ply 140 4.00-8 6-ply 175 6.00-9 10-ply 175 7.50-10 10-ply 175 9.00-10 10-ply 175 3.3.2 Static l
9、oads. Wheels, when mounted with tires and tubes and mounted to applicable hubs, shall withstand the maximum static loads specified in table II. TABLE II. Wheel maximum static loads. Wheel size Tire inflation, psi Maximum static load, lbs. (at each wheel) 3.50-6 80 2,500 4.00-8 100 5,000 6.00-9 100 6
10、,250 7.50-10 95 10,000 9.00-10 80 10,000 3.3.3 Towing. Wheel and hub assemblies shall be capable of being moved by hand or towed by a tug over concrete pavement in a circular path having a 35 foot radius (as measured to the outside of the wheels) for a minimum of one-half mile at speeds up to 15 mil
11、es per hour (mph) under the 10 percent overrated load condition for 5 mph specified in table I. 3.4 Usage. The wheels and hubs shall be capable of being used as running gear on equipment that may be moved by hand or towed by a tug on paved areas, pierced plank areas, unpaved roads, and unimproved le
12、vel terrain, whether such areas are dry, wet, or covered with up to 6 inches of snow or 4 inches of mud. 3.5 Design and construction. Wheel and hub assemblies shall be constructed so that no parts will work loose in service. 3.5.1 Materials. Wheels and hubs shall be made out of steel, iron, or alumi
13、num alloy as specified in their respective specification sheet. These materials, which are subject to deterioration when exposed to climatic and environmental conditions, shall be of corrosion-resistant type metal or shall be of metal that is protected against deterioration in a manner that will in
14、no way prevent compliance with the requirements of this CID. The use of any protective coating that will crack, chip, or scale with age or extremes of climate and environmental conditions shall be avoided. 3.5.2 Wheels. Wheels shall be of the split-rim type, with all of the necessary bolts, lockwash
15、ers, and nuts required for assembly of the two halves. The wheels shall allow removal of the wheel from the hub without deflating the tire. 3.5.3 Hubs. A hub shall consist of all the parts shown on the respective specification sheet for the hub assembly, as applicable, including all bolts, nuts, and
16、 lockwashers for attaching the wheel to the hub. All parts such as grease seals and hubcaps that are not specified in detail shall meet the requirements specified in 3.6. Axles are not a part of the hubs covered by this CID. Provided by IHSNot for ResaleNo reproduction or networking permitted withou
17、t license from IHS-,-,-A-A-59494A 3 3.5.3.1 Bearing cup removal. Slots or other provisions shall be inside the hubs to facilitate removal of bearing cups. 3.5.3.2 Attachment bolts. Hub-to-wheel attachment bolts shall be of the sizes shown on the applicable specification sheet and shall be ribbed-nec
18、k carriage bolts. The length of the ribbed part of the bolt shall be from the head to within 1/16 inch of extending through the flange of the hub. Bolts shall be capable of being pressed out to allow for attachment of a brake mechanism to the hub body. 3.5.3.3 Seals. Seals for the hub as shown on th
19、e respective specification sheet for the hub assembly shall be standard grease seals of the molded, synthetic-rubber type. The seals shall provide protection for the wheel bearings under the environmental conditions specified herein. 3.5.3.4 Brake drum pilot. Each type 1 cantilever mounting hub shal
20、l be provided with a brake drum pilot surface on the hub flange. 3.5.4 Threads. Unless other specified, all threads shall conform to FED-STD-H28 (see 7.4). 3.6 Environmental conditions. The wheels and hubs shall be capable of withstanding exposure to the following environmental conditions: a. Temper
21、atures from -65 to 125 F. b. Relative humidity of 955 percent at a temperature of 1255 F. c. Airborne sand and dust particles incident to normal road operation. d. Atmosphere containing salt-laden moisture (a salt fog of 51 percent salt solution). 3.7 Tires and tubes. All industrial pneumatic-type t
22、ires and tubes furnished with the wheels shall conform to ZZ-T-410, except that tire size 7.50-10 shall be 10-ply rating. Tire size 9.00-10 shall be used only with ferrous metal hubs and wheels. All tires shall have a free-rolling tread design, be of a non-directional type, and have multiple ribs. 3
23、.7.1 Flaps. Unless otherwise specified (see 7.5), all 10-ply rating tires shall be equipped with flaps. 3.7.2 Valve stem. The valve stem on the tube furnished with the tire shall conform to the appropriate TRA Standard (see 7.4) as indicated: Tire size TRA Standard 3.50-6 TR 87 4.00-8 TR 13 or TR 87
24、 6.00-9 and 7.50-10 TR 135 9.00-10 TR 150 3.8 Finishes and protective coatings. 3.8.1 Color. Wheels and hubs shall be finished in the color specified in the contract or order (see 7.5). 3.8.2 Bearings, grease seals, enclosed parts, and utility parts. The bearings, grease seals, and enclosed parts an
25、d surfaces of the hub shall not be painted. The outside surface of the seals shall be painted or plated in accordance with the applicable finishes specified above. Bearing cup bores shall not be finished. Utility parts (e.g., wheel mounting bolts) shall be masked or otherwise protected during painti
26、ng of the hubs. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59494A 4 3.9 Marking. Wheels and hubs supplied to this CID shall be marked with the manufacturers (MFRs) standard commercial PIN. (NOTE: The part number marked on the unit pack shall
27、 be the CID PIN.) 3.10 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes econo
28、mically advantageous life cycle costs. 3.11 Workmanship. The wheels and hubs shall be processed in such a manner as to be uniform in quality and shall be free from other defects that will affect life, serviceability, or appearance. 3.11.1 Wheel surface. The surface of the wheel between bead seats sh
29、all be free of defects that would be injurious to the innertube and tire. 3.11.2 Flanges. The hub face and mating wheel faces shall be smooth and free from defects. 3.11.3 Register. The register bore of the wheel and register diameter of the hub shall be concentric and free from defects. The least c
30、learance between these surfaces shall be maintained consistent with the applicable figures. 4. REGULATORY REQUIREMENTS. The offeror/contractor is encouraged to use recovered materials to the maximum extent practicable, in accordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR).
31、5. PRODUCT CONFORMANCE PROVISIONS. 5.1 Product conformance. The products provided shall meet the salient characteristics of this CID, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial market.
32、The Government reserves the right to require proof of such conformance. 5.2 Market acceptance. The following market acceptance criteria are necessary to document the quality of the product to be provided under this CID: a. The company producing the item must have been producing a product meeting the
33、 requirements of this CID for at least 1 year. 6. PACKAGING. Preservation, packing, and marking shall be as specified in the contract or order. 7. NOTES. 7.1 PIN. The PIN should be used for Government purposes to buy commercial products to this CID. See section 2 for PIN format example. 7.2 Environm
34、entally preferable material. Environmentally preferable materials should be used to the maximum extent possible to meet the requirements of this specification. As of the dating of this document, the U.S. Environmental Protection Agency (EPA) is focusing efforts on reducing 31 priority chemicals. The
35、 list of chemicals and additional information is available on their website http:/www.epa.gov/osw/hazard/wastemin/priority.htm. Included in the EPA list of 31 priority chemicals are cadmium, lead, and mercury. Use of these materials should be minimized or eliminated unless needed to meet the require
36、ments specified herein (see Section 3). 7.3 Commercial and Government Entity (CAGE) code. For ordering purposes, inventory control, and submission of these wheels and hubs to DSCC under the Military Parts Control Advisory Group (MPCAG) evaluation program, CAGE code 58536 should be used. Provided by
37、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59494A 5 7.4 Source of documents. Federal Specification ZZ-T-410 - Tires, Pneumatic, Industrial Federal Standards FED-STD-H28 - Screw-Thread Standards for Federal Services FED-STD-595 - Colors Used in Governmen
38、t Procurement Commercial Item Descriptions A-A-59494/1 - Wheels and Hub Assemblies A-A-59494/2 - Wheel, Pneumatic Tire, 3.50-6 A-A-59494/3 - Wheel, Pneumatic Tire, 4.00-8 A-A-59494/4 - Wheel, Pneumatic Tire, 6.00-9 A-A-59494/5 - Wheel, Pneumatic Tire, 7.50-10 or 9.00-10 A-A-59494/6 - Hub Assembly, C
39、antilever Mounting, for 3.50-6 and 4.00-8 A-A-59494/7 - Hub Assembly, Cantilever Mounting, for 6.00-9, 7.50-10, and 9.00-10 A-A-59494/8 - Hub Assembly, Fork Mounting, for 3.50-6 and 4.00-8 Wheels A-A-59494/9 - Hub Assembly, Fork Mounting, for 6.00-9 and 7.50-10 Wheels (Copies of these documents are
40、available online at https:/assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094). Federal Regulations FAR - Federal Acquisition Regulation (FAR) (Copies of these documents are available online at https:/www.acq
41、uisition.gov/Far/ or Federal Acquisition Policy Division, FAR Secretariat (MVP), Washington, DC 20405.) Other Publications Tire and Rim Association (TRA) The Tire and Rim Association (TRA) Standards (Copies of these documents may be obtained online at http:/www.us-tra.org/traPubs or from The Tire an
42、d Rim Association, Inc., 175 Montrose Avenue W., Copley, OH 44321.) Aerospace Industries Association of America NASM24665 - Pin, Cotter (Split) (Copies of these documents may be obtained online at http:/ or from the Aerospace Industries Association of America, 1000 Wilson Boulevard, Suite 1700, Arli
43、ngton, VA 22209.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59494A 6 7.5 Ordering data. The contract or order should specify the following: a. CID document number, revision, and CID PIN b. Product conformance provisions. c. Packaging requir
44、ements. 7.6 Government users. To acquire information on obtaining these wheels and hubs from the Government inventory system, contact Defense Supply Center, Columbus, ATTN: DSCC Call Center (DSCC-NAB), P.O. Box 3990, Columbus, OH 43218-3990, or telephone (614) 692-2271 or (614) 692-3191. 7.7 Changes
45、 from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extensiveness of the changes. MILITARY INTERESTS: CIVIL AGENCY AND COORDINATING ACTIVITY: Custodians: GSA - FAS Army - AT Air Force - 99 Preparing activity: DLA CC
46、 DLA - CC Review activity: Project 2530-2009-010 Air Force - 84 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.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
