1、I I i I I I I t t I t i r I- l I I I I I I I I I I l l l R. * P=- p- le a MIL-B-856q 31 = 3777706 OLL2376 2 /-67- 27 MIL-B-8568 4( AS) 19 NQvemGer 1985 MILITARY SPECIFICATION BEARING, SPIN (SIDEWINDER) This specification is approved for use within the Naval Air Systems Command, Department of the Nav
2、y, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification establishes the requirements for manu- facture and acceptance of the spin bearing, a critical item, referred to herein as the “spin bearing“ and is part of the guidance an
3、d control sec- tion, WGU-4A/B (AIM-9M). 1 . 2 Classification. The spin bearings consist of the following types: Type I: Cartridge spin bearing. Type II: Duplex spin-bearing pair. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications and st
4、andards form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation. Benef-
5、icial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Engineering Center, Systems Engineering and Standardization Department (SESD), Code 93, Lakehurst, NJ 08733, by using the
6、 self-addressed Standardization Document Improvemenk Proposal (DD Form 1426) appearing at the end of this document, or by letter. FSC 3110 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. I , / THIS DOCUMENT CONTAINS 36 PAGES Provided by IHSNot for ResaleNo reproduct
7、ion or networking permitted without license from IHS-,-,-MIL-B-Sh 31 W 7977706 0112377 W SPECIFICATIONS FEDERAL TT-T- 6 56 QQ-S-763 MILITARY MIL-B-197 MIL-B-1083 MIL-1-6868 MIL-H-6875 MIL-B-81793 MIL-S-85 104 MIL-G-85127 STANDARDS MILITARY MIL-STD-105 MIL-STD-129 MIL-STD-130 Tricresyl Phosphate. Ste
8、el Bars, Wire, Shapes, and Forgings , Corros ion-Re s is ting . a Bearings, Antifriction; Associated y Parts and Subassemblies; Preparation for Delivery of. Balls, Bearing, Ferrous and Non Ferrous (For.use in Bearings and Valves). Inspection Process, Magnetic Particle. a Heat Treatment of Steels (Ae
9、rospace Practice, Process for) . .j Bearing, Ball, Precision, for Instruments and Rotating Components. AIM-9M Seeker Assembly (Sidewinder). Guidance and Control Sections, WGU-4/B and WGU-4A/B Guided Missile (Sidwinder). Sampling Procedures and Tables for Inspection by Attributes. Marking for Shipmen
10、t and Storage. Identification Marking of U.S. Military Property. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c i I I l I I I I l I I I I I l l l 1 MIL-B-85b 31 W 9999906 OL1239 b W MIL-STD-206 MIL-STD-781 Friction Torque Testing for Instrument
11、Ball Bearings Test Requirements. Reliability Design Qualification and Production Acceptance Tests: Exponent ia1 Distribution. MIL-STD-45662 Calibration Systems Requirements. 2.1.2 Drawings and publications. The following drawings and publica- tions form a part of this specification to the extent spe
12、cified herein, Unless otherwise specified, the issues shall be those in effect on the date of the solicitation, DRAWINGS Naval Air Systems Command (Code Ident 30003) 1569600 2412395 SA493245 SA2 5 24 2 7 3 639AS3 169 639AS3 180 6 39AS3 9 62 639AS6 502 639836560 639AS6 56 1 6 39AS6 5 6 2 639486563 Pr
13、otector, Dome. Sheet, Technical Frequency Specifications. Spin Bearing Preload Fixture. Slow Down and Noise Test Fixture, Assembly and Details. Gimbal Assembly. Gyro Assembly. Seeker Section, Infrared, Guided Mis si le . Gyro Assembly. Retainer, Ball. Bearing, Spin. Polyimide, Porous Molded. Lubrica
14、nt, Synthetic Hydrocarbon. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-BT heavy series 1.0 b. Alumina: Thin series 1.0; heavy series 1.0 C. Silica or silicate: Thin series 1.0; heavy series 1.0 d. Globular oxides: Thin series 1.5; heavy ser
15、ies 1.0 I I I I I I t i I I I 3.3.3.1 Component cleanliness. All tools and fixtures that are used to handle the bearings and all bearing components shall not introduce any con- t ami na t ion . 3.3.4 Special working conditions. The facilities used in the manufac- ture, testing, and inspection of the
16、 spin bearing shall be in accordance with AD-874. 3.4 First article. When specified in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.1.2.1 and 6.2.3). 3.5 Workmanship. Workmanship, finishing, cleaning, and lubrication of spin bearing pairs shall be pe
17、rformed in a manner that will assure compliance with ail requirements of this specification and all applicable referenced documents. The contractor shall comply with AD-874 and MIL-B-81793, to assure production of high quality bearings. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspecti
18、on. Unless otherwise specified in the contract or purchase order (see 6.2.1), the contractor is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities
19、suitable for the performance of the inspection requirements specified herein, unless disapproved by the . Government. inspections set forth in this specification where such inspections are deemed necessary to assure that supplies and services conform to prescribed requirements. The Government reserv
20、es the right to perform any of the 17 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I NIL-B-85684 31 9997906 0112413 9 W 4.1.1 Responsibility for compliance. All items shall meet all require- ments of Sections 3 and 5. The inspection set forth in t
21、his specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the speci- fication shall not relieve the contractor of the responsibility of assuring that all products or supplies submitted to the Government for ac
22、ceptance comply with all requirements of the contract. mance does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. Sampling in quality confor- 4.1.1.1 Classification of inspections. The inspection
23、 and testing of the bearings shall be in accordance with the following classifications: a. First article inspection (see 4.1.2.1). b. Quality conformance inspections (see 4.2) (1) Inspection lot acceptance criteria (see 4.2.1). (2) Product verification tests (see 4.2.2). (3) Component tests (see 4.2
24、.2.1). 4.1.1.2 Test equipment. Test equipment shall be of sufficient accuracy, quality, and quantity to ensure that the performance for the required tests and measurements are to the aecuracy specified herein. All equipment shall be calibrated and maintained in accordance with a system meeting the r
25、equirements of MIL-STD-45662. 4.1.2 First article inspections. 4.1.2.1 First article inspection sequence. The first article sample (see 3.4) shall be subjected to the following inspection sequence: a. All 12 spin bearings shall be subjected to all of the accep- tance tests listed in Table II, Group
26、I. b. Six spin bearings shall be selected after completion of the Table II, Group I tests and subjected to all the product veri- fication tests listed in Table II, Group II. tests shall be further subjected to the environmental tests listed in Table II, Group III. C. Four of the spin bearings used f
27、or the Table II, Group II 18 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-85684 31 = 7777906 OL124L4 O M l ,- 1. I I I I I I I I I I I l d. e. f. The remaining two spin bearings used for product verification tests shall be disassembled and t
28、he components used for the Table II, Group IV tests. Each of the component tests listed in Table II, Group IV shall be performed on the applicable components of both spin bearings . A total of six spin bearings from the remaining first article pairs shall be subjected to the MTBF demonstration test
29、of Table II, Group V. Failure of the first article sample to pass the tests of Table II shall cause rejection of the sample. failure during the first article testing and inspections of Table II, Groups I, II, III, or IV, testing shall be stopped and the procuring activity and their technical represe
30、ntatives shall be notified within 24 hours. shall be performed and a final report prepared as specified in the contract or purchase order (see 6.2.2). First article testing and inspections may continue only with the concurrence of the procuring activity. In the event of failure during the first arti
31、cle testing of Table 11, Group V see paragraph 4.3.3.4. In the event of Complete failure analysis In the event of a failure during any stage of the first article inspection, failure analysis shall be used to determine if the failure should be attri- buted to poor manufacturing, design, or to some un
32、related cause. Additional inspections shall be performed after failure correction to verify that acceptable bearings are being produced and the failure mode eliminated. manufacturer can and does meet the intent and requirements of this specifi- cat ion. The procuring activity must be satisfied that
33、the bearing 4.2 Quality conformance inspections. The production lot sample shall be subjected to the inspections of Table II and as specified in 4.2.1 and 4.2.2. 4.2.1 Inspection lot acceptance criteria. Each spin bearing shall be subjected to all the tests listed in Table II, Group I, Subgroup 1 in
34、 accordance with 4.2.4.1. Subgroup 1 acceptance tests shall be rejected. I, Subgroup 2 acceptance test sample selected in accordance with 4.2.4.1 shall be subjected to the running torque test of Table II, Group I, Subgroup 2. subject each spin bearing of the lot represented by the sample to the runn
35、ing torque test of Table II, Group I, Subgroup 2. Any spin bearing which fails any Group I, Each spin bearing of Group If any failure occurs, reject the failed spin bearings and 19 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE II. MIL-B-85684
36、(AS) First article and quality conformance inspections. Inspection group Group I Acceptance tests Subgroup 1 Subgroup 2 Group II Pro duct verification tests Group III Environmental tests Group IV Component-parts tests Test Lubrication Workmanship Coding Preload Low sped torque Running torque Insepar
37、able bearings Relative position of bearing bearing components Radial play Vibration Shock Rings, dimensions, and tolerances Raceway radius and runout including DFTC for both cross-race and circum- f erential roundness Ball, dimensions, and tolerances Ball complements Ball retainer Ball retainer poro
38、sity Surface finish, rings and Surface finish, retainers Surf ace roughness, rings Passivation balls Requirement paragraph 3.3.2.2.3 3.3.1, 3.3.2.10, 3.5 3.2.2.6.1 3.2.2.6.2 3.2.1.1 3.2.1.2 3.2.2.5.1 3.2.2.5.2 3.2.2.5.3 3.2.3.1 3.2.3.2 3.2.2.3 3.2.2.3.1 3.2.2.4, 3.2.2.4.1, 3.2.2.4.2 3.2.2.1 3.2.2.1.
39、1 3.2.2.2 3.3.2.1.2, 3.3.2.2.3.2 3.3.2.4 3.3.2.5 3.3.2.6 3.3.2.2.2 Method paragraph 4.3.4.4.3 4.3.5 403.2.1 4.3.2.2 4.3.1.1.1 4.3.1.2 4.3.2 4.3.2 4.3.2 4.3.3.1 4.3.302 4.3.2 4.3 . 2 4.3.2 4.3.2 4.3.2 4.3.4.3.2 4.3.4.3.3 4.3 04 03 04 4.3.4.2. 1 O “ “ I I I I I I I I l 1 20 Provided by IHSNot for Resa
40、leNo reproduction or networking permitted without license from IHS-,-,-MIL-B-Sb4 31 7977706 OLL24Lb 4 MIL-B-85684(AS) Requirement paragraph TABLE II. First article and quality conformance inspect ions . (Continued 1 Method paragraph Inspection group I Group IV (Co nt inued) Group V MTBF I I Test Dim
41、ensional stability Hardness Materials, rings, and balls Materials, ball retainer Wettability of rings and Decarburization Fracture grain size Cracks and fractures Material cleanliness balls 3.3.2.3.1.3 3.3.2.3.1 3.3.2.1, 3.3.2.1.1, 3.3.2.1.3 3 -3.2.1 . 4 3.3.2.2.2.1 3.3.2.4 3.3.2.3.1.1 3.3.2.3.1.2 3
42、.3.3.1 4.3.2 4.3.4.3.1.3 4.3.4.3.1 4.3.4.1.1 4.3.4.1.2 4.3.4.2.2.1 4.3.4.3.2.1 4.3.4.3.1.1 4.3.4.3.1.2 4.3.5 MTBF demons trat ion I 3.2.3.3 I 4.3.3.3 4.2.2 Product verification tests. Each spin bearing of the product verification sample, selected in accordance with 4.2.4.2, shall be sub- jected to a
43、ll the tests of Table II, Group II. If any spin bearing fails any Table II, Group II tests, the sample shall be rejected and a new sample shall be drawn and tested. If any failures occur during the testing of the second sample, reject the failed bearing and subject the entire lot repre- sented by th
44、e two samples to the test or tests in which the failures occurred. 4.2.2.1 Component tests. 4.2.2.1.1 Prior to assembly. Component-parts selected in accordance with 4.2.4.3 shall be subjected to the applicable tests listed in Table II, Group IV. dance with 4.2.4.3. Acceptance or rejection of the com
45、ponent lot shall be in accor- 4.2.2.1.2 Test after assembly. Two or more spin bearing pairs from each first article sample shall be dismantled and subjected to the tests listed in Table II, Group IV. Bearings previously used in product verification tests and forwarded to the testing activity in comp
46、liance with 4.2.4.2 shall also be subjected to the Table II, Group IV tests, at the discretion 21 L Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-of the procuring activity. Should any component fail to meet the require- ments of the Table II, Group
47、 IV tests, the procuring activity reserve the right to retest the bearings or withdraw the qualification of the product, or to take such other remedial action as deemed appropriate. 4.2.3 - Lot. A lot shall consist of all spin bearings made of the same materials group and in the same production run
48、which are offered for deli- very at the same time. A lot of components shall consist of all like com- ponents from the same machine run or production process being submitted for insp.ection at the same time. 4.2.4 Sampling procedures. 4.2.4.1 Sampling for acceptance tests. Sampling for acceptance te
49、sts of Table II, Group I, subgroup 1 shall be on a 100-percent basis. for acceptance test of Table II, Group I, Subgroup 2 shall be in accordance with MIL-STD-105, Special Inspection Level S-3, Single Sampling Plan, Acceptable Quality Level (AQL) Level 4.0 (see 4.2.1 for defective rate). Sampling 4.2.4.2 Sampling for product verification tests. The sample for product verification tests shall be 4 percent of the pr
