1、 AEROSPACE STANDARD BEARING, BALL, ROD END, DOUBLE ROW, PRECISION, SOLID SHANK, SELF-ALIGNING, AIRFRAME, TYPE I, -65 TO 300 F AS21150Copyright 2009 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any
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3、ISSUED 1998-01REVISED 2009-12THIRD ANGLE PROJECTION CUSTODIAN: SAE AIRFRAME CONTROL BEARINGS GROUP REV.E FEDERAL SUPPLY CLASS 3110 AS21150SHEET 1 OF 3 REV. E PROCUREMENT SPECIFICATION: AS6039SAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of techni
4、calandengineering sciences. Theuse ofthis report is entirely voluntary, andits applicability and suitability forany particular use,including any patent infringement arising therefrom, isthe soleresponsibilityofthe user.”SAE reviews eachtechnicalreport at least every five years at which time itmay be
5、reaffirmed, revised, orcancelled. SAE invites yourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS21150E RATIONALE CORRECTION. THE “W” TOLERANCE IN TABLE 1 WAS INADVERTENTLY CHANGED IN REV D. FIG
6、URE 1 TABLE 1 - DIMENSIONS AND TOLERANCES MS21150 DASH NUMBER BORE SIZE NOM A B D EFHG W WT LB APPROX .010 +.0000-.0003 .010 NOM +.000-.002 .010 MIN +.000 -.005 -1 3/16 1.375 .1900 .781 .390 .430 .328 .276 .437 .07-2 1/4 1.875 .2500 .938 .500 .625 .438 .340 .593 .16TABLE 2 - ENGINEERING DATA MS21150
7、 DASH NUMBER RADIAL STRENGTH AXIAL STRENGTH RADIAL LOAD RATING 10 000 COMPLETE 90 CYCLES (b) (d) MAXIMUMSTARTING TORQUE LIMIT LOAD LBF FRACTURELOAD LBF LIMIT LOADLBF FRACTURELOADLBF CASE I CASE II IN-OZ -1 1000 1500 200 300 1000 1000 3.0-2 1720 2580 345 520 1720 1720 4.0REQUIREMENTS: (a) A RADIUS GI
8、VING THE SAME FILLET CLEARANCE WILL BE ACCEPTABLE. (b) CASE I - LOAD FIXED WITH RESPECT TO OUTER RACE (AVERAGE LIFE RATING). CASE II - LOAD FIXED WITH RESPECT TO INNER RACE (AVERAGE LIFE RATING). (c) 10 DEGREES MIN. MISALIGNMENT IN EITHER DIRECTION SHALL OCCUR WITHOUT INTERFERENCE BETWEEN BALL HOUSI
9、NG AND SURFACES INDICATED BY DIMENSION “W”. (D) THESE RATINGS ARE FOR OPERATIONS UP TO 250 F MAXIMUM. WHEN SUBJECTED TO OPERATION ABOVE 250 F, THE RATINGS SHOULD BE REDUCED BY 20%. (a) AEROSPACE STANDARD AS21150 SHEET 2 OF 3 REV. E BEARING, BALL, ROD END, DOUBLE ROW, PRECISION, SOLID SHANK, SELF-ALI
10、GNING, AIRFRAME, TYPE I, -65 TO 300 F NOTES: NOTICE THIS DOCUMENT REFERENCES A PART WHICH CONTAINS CADMIUM AS A PLATING MATERIAL. CONSULT LOCAL OFFICIALS IF YOU HAVE QUESTIONS CONCERNING CADMIUMS USE. 1. FOR DESIGN FEATURE PURPOSES, THIS STANDARD TAKES PRECEDENCE OVER ANY OTHER DOCUMENTS REFERENCED
11、HEREIN. 2. REFERENCED DOCUMENTS SHALL BE OF THE ISSUE IN EFFECT ON DATE OF INVITATION FOR BID. 3. RADIAL CLEARANCE: .0000 TO .0004 INCHES UNDER 5.5 LB FULLY REVERSING GAGE LOAD. 4. AXIAL CLEARANCE: .0000 TO .003 INCHES UNDER 5.5 LB FULLY REVERSING GAGE LOAD. 5. MATERIAL: INNER RACE AND BALLS: AISI E
12、52100 STEEL PER AMS6440 OR AMS6444; BALLS IAW ASTM F 2215. ROD END BODY: AISI 4130 STEEL PER AMS-S-6758 OR AISI 8620 STEEL PER AMS6274. SEALS: POLYTETRAFLUORETHYLENE PER AMS3652 OR AMS3666 OR POLYETHERESTER PER ASTM D 4550, GROUP 4, CLASS 1, GRADE 1. SEAL RETAINERS: STEEL CORROSION RESISTANT, AISI 3
13、00 OR AISI 400 SERIES STEEL. 6. HEAT TREATMENT: INNER RACE AND BALLS: 60 TO 66 HRC ROD END BODY RACEWAY: 59 TO 63 HRC: STABILIZE FOR OPERATION AT 250 F. THE ROD END BODY RACEWAY SHALL BE CASE HARDENED TO ACHIEVE AN EFFECTIVE CASE DEPTH (50 HRC POINT) FROM A MINIMUM OF 25% TO A MAXIMUM OF 50% OF THE
14、RING THICKNESS. THE ROD END SHANK SHALL HAVE A HARDNESS OF 92.5 HRB MINIMUM TO 45 HRC MAXIMUM AND THE ROD END HEAD O.D. SHALL HAVE A HARDNESS OF 32 TO 48 HRC. 7. FINISH CODE: “ “ (NO CODE) INDICATES CADMIUM PLATE PER AMS-QQ-P-416, TYPE I, CLASS 2. “E“ INDICATES ZlNC-NlCKEL PLATE PER AMS2417, TYPE 2
15、8. LUBRICANT: ALL BEARINGS SHALL BE PREPACKED 80% TO 100% FULL WITH GREASE QUALIFIED TO MIL-PRF-81322 OR MIL-PRF-23827 TYPE 1. IF MIL-PRF-23827 IS REQUIRED ADD THE SUFFIX “G” TO THE MS PART NUMBER AND LIMIT BEARING OPERATION TO NOT MORE THAN 250 F. 9. REMOVE ALL BURRS AND SHARP EDGES. 10. SURFACE RO
16、UGHNESS: RACEWAYS AND BALLS SHALL NOT EXCEED 8 (Ra). SHANK 63 (Ra) WHERE INDICATED. ALL OTHER MACHINED SURFACES SHALL NOT EXCEED 125 (Ra). AS FORGED SURFACES ON OUTER SURFACE OF ROD END BODY ARE ACCEPTABLE. 11. DIMENSIONS IN INCHES, UNLESS OTHERWISE SPECIFIED. 12. DIMENSIONS TO BE MET AFTER PLATING.
17、 AEROSPACE STANDARD AS21150 SHEET 3 OF 3 REV. E BEARING, BALL, ROD END, DOUBLE ROW, PRECISION, SOLID SHANK, SELF-ALIGNING, AIRFRAME, TYPE I, -65 TO 300 F 13. EXAMPLE OF COMPLETE PART NUMBER: MS21150 - 2 G E “ ” = (NO CODE) CADMIUM PLATE “E” = ZINC-NICKEL PLATE “ ” = (NO CODE) GREASE PER MIL-PRF-8132
18、2 “G” = GREASE PER MIL-PRF-23827 DASH NO. (SEE TABLE 1) BASIC PART NO. 14. THE POINT REPRESENTING THE CENTER OF SELF-ALIGNMENT MOTION SHALL BE COINCIDENT WITH THE AXIS OF THE ROD END WITHIN .010 INCH. 15. A CHANGE BAR ( l ) LOCATED IN THE LEFT MARGIN IS FOR THE CONVENIENCE OF THE USER IN LOCATING AR
19、EAS WHERE TECHNICAL REVISIONS, NOT EDITORIAL CHANGES, HAVE BEEN MADE TO THE PREVIOUS ISSUE OF THIS DOCUMENT. AN (R) SYMBOL TO THE LEFT OF THE DOCUMENT TITLE INDICATES A COMPLETE REVISION OF THE DOCUMENT, INCLUDING TECHNICAL REVISIONS. CHANGE BARS AND (R) ARE NOT USED IN ORIGINAL PUBLICATIONS, NOR IN DOCUMENTS THAT CONTAIN EDITORIAL CHANGES ONLY.
