1、 A-A-58059 74 O170872 718 W INCH-POUND A-A-58059 22 March 1996 COMMERCIAL ITEM DESCRIPTION LATHE, BRAKE DRUMROTOR The General Services Administration has authorized the use of this commercial item description by ali federal agencies. 1. SCOPE. This commercial item description is for a multi-speed co
2、mbination brake dnun/disc lathe, which will be used to service and maintain U.S. Air Force transportation vehicles and related eqpment. 2. SALIENT CHARACTERISTICS 2.1. and military passenger vehicle brake drums and disc brake rotors within the sizes specified in this document. The lathe shall be cap
3、able of turning brake drums and disc brake rotors weighting up to and including 200 pounds, with wheel removed, within the sizes and accuracys specified herein. Performance accuracy shall apply after turningltruing the brake drum or disc brake rotor in the lathe and shall be unaffected by the mounti
4、ng position of the brake drum or disc on the arbor. Unit shall have lathe indusry standard paint color and type. General. The lathe shall be capable of truing and be equipped with accessories for commercial 2.2 range is indicated, the required performance shall be from and including the smaller figu
5、re or less to and including the larger figure or more. Performance siecifications. The lathe specifications shall not be less than those shown. Where a Parameter Range a. Drum diameter range b. Drum friction surface depth of cut range c. Drum cutting feed rate range (feeddrev) d. Drum cutting feed r
6、ate range (feeddmin) e. Rotor diameter range f. rotor width range g. rotor cutting feed rate range (feeddrev) h. Rotor cutting feed rate range (feedshin) i. Spindle speeds (rev/min) j. Electric power requirements 6 inches - 28 inches 0) 1 to 8 inches 0.0015 to 0.015 inches (infinitely variable) 0.37
7、50 to 1.5 inches (infinitely variable) 4 to 24 inches 0.125 to 4.5 inches 0.001 to 0.010 inches (infinitely variable) 0.25 to 1.0 inches (infinitely variable) 100-150-200 (3 positions) 115 VAC, 1 phase, NEMA 5-20 2.3 spindle shall be powered by a minimum of one (1) horsepower drive motor. Feed trave
8、l shall not be Features. Units shall have a removable arbor to accept various adapter and arbors and the lathe I Beneficial comments, recommendations, additions, deletions, clarifkations, etc. and any data which may I improve this document should be sent to: Technology distribution is unlimited. Pro
9、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-58059 m 9999974 O370873 654 H A-A-58059 engageable on the drum and rotor feeds at the same time. Cross-slides shall be designed with dovetails ways with adjustments for machine wear. The unit shall be
10、equipped with worklight and integral safety shield and a spindle to run on tapered roller bearings with adjustments for wear. The boring bar or the twin cutter shall be interchanged by removing one nut; either may be used at any point on either dovetail cross-slide. The unit shall include a workbenc
11、h with provisions for hanging accessories and a took kit consisting of one (1) disc brake rotor micrometer and one (1) drum wear limit gauge for 8 to 14 inches. The unit shall also include adapters such as short radius cones, taper cones, sleeves, bushings and spacers. 2.4 Machine accuracy. The lath
12、e and accessories shall not exceed the following tolerances: a. Spindle taper m-out (concentricity) 0.0005 inch total indicator reading (TIR) b. Arbor run-out (concentricity 0.0005 inch TIR at ail positions along its length up to 7 inches from the spindle nose and 0.001 TIR inch from 7 to 16 inches
13、and 0.0015 TIR past 16 inches, if applicable. 3. REGULATORY REQUIREMENTS. 3.1 proposal is issued. The units shall conform to BAR 90 accuracy standards. In the event that state and/or local OSHA regulations are also in effect, the Federal regulations shall take precedence. Safetv. The unit shall comp
14、ly with the Federal OSHA and NFPA standards in effect at the time the 4. QUALITY ASSURANCE PROVISIONS 4.1 offered meets the salient characteristics of the CID and the product conforms to the producers own drawings, specifications, standards and quality assurance practices. The government reserves th
15、e right to require proof of such conformance prior to first delivery and thereafter as may be otherwise provided for under the provisions of the contract or purchase order. Contractor Certification. The contractor shall certify and maintain evidence that the product 4.2 Bid sample. The government re
16、serves the right to request a bid sample if the literature submitted is not adequate. Bid samples shall be subjected to a 15 to 30 business day evaluation. Evaluation criteria is maintained by the procuring activity. 5. contract or purchase order. In general, the units shall conform to all applicabl
17、e federal and commercial regulations consistent with the lathe industry practice. PACKAGING. The preservation, packaging, labeling and marking shall be specified in the CustodianS: Air Force - 99 Army-AL Navy - YD1 DLA - CS Preparing activity: Air Force - 82 Agent Activity: Air Force - 99 (Project No. 4910-0489). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
