1、METRICI 91 3 - AMENDMENT 1 21 MARCH 1994 MILITARY SPEC1 FICATION BEARINGS, BALL, ANNULAR FOR INSTRUMENTS AND PRECISION ROTATING COMPONENTS (METRIC) This amendment forms a part of Military Specification MIL-B-913 dated 05 March 1993, and is approved for use by all Departments and Agencies of the Depa
2、rtment of Defense. PAGE 13 4.8.1 O, Del ete enti re paragraph and subst i tute: The dimensional stability of rings and balls shall be demonstrated by the followirig test: -80F (-62C) for 25 hours. Imediately following, the parts shall be subjected to a temperature of t302“F (t150“C) for 25 hours. Th
3、is cycle shall then be repeated twice for a total of 100 hours. Diameters shall be measured at 68F (20C) and compared to values recorded before teriiperature cycling. The rings and balls shall be subjected to a temperature of PAGE 14 5 .3 , De 1 e te I.1 I L - P - 1 9 7 a nd s u bs t i tut e 19 I L
4、 ST I)- 1 47 . Cu s todi ans : Army - AT Navy - AS Air Force - 99 Revi ewer dc ti vi ti es: Navy - MC, SH Air Force - 84 DLA - IS Preparing Activity: Navy - AS (Project No. 3110-0905) AbiSC N/A FSC 3110 DISTRIBUTION STATEIvlENT A. Approved for pub1 ic release; distribution is un1 iinited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
