1、AEROSPACE STANDARD BEARING, PLAIN, SELF-ALIGNING, PTFE LINED, WIDE AS21231Copyright 2012 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 means, electronic, mechanical, photocopying, recording, or
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3、ODIAN: AIRFRAME CONTROL BEARINGS GROUP REV.AFEDERAL SUPPLY CLASS 3120 AS21231SHEET 1 OF 2REV. APROCUREMENT SPECIFICATION: MIL-B-8942SAE Technical Standards Board Rules provide that: “This report ispublishedby SAE toadvance thestate of technicalandengineering sciences. Theuse ofthis report is entirel
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5、ourwrittencomments andsuggestions. SAE values your input. To provide feedbackon this Technical Report, please visit http:/www.sae.org/technical/standards/AS21231ARATIONALE THIS REVISION IS A RESULT OF A FIVE YEAR REVIEW. THE DOCUMENT WAS UPDATED TO REFLECT THE CURRENT SAE STYLE MANUAL AND FORMATTING
6、 FIGURE 1 PART CONFIGURATION TABLE 1 DIMENSIONS AND STRENGTHS DASHNOB D H W M Q STATIC LIMIT LOAD OSCILLATING LOAD LBF NO LOAD BREAKAWAY TORQUE IN-LBSWT LB MAX +.0000 -.0005 +.0000 -.0005 .005 +.000 -.002 MIN MIN RADIAL LBF AXIAL LBF -3 .1900 .6250 .327 .437 .300 15 9000 1770 3770 0.5-5.0 .031 -4 .2
7、500 .6250 .327 .437 .300 15 9000 1770 3770 1.0-5.0 .031 -5 .3125 .6875 .317 .437 .360 14 9400 1640 4650 1.0-5.0 .035 -6 .3750 .8125 .406 .500 .466 8 13 700 2630 6390 1.0-5.0 .060 -7 .4375 .9375 .442 .562 .537 10 20 700 3650 9390 1.0-5.0 .080 -8 .5000 1.0000 .505 .625 .607 9 27 500 4970 12 150 1.0-5.
8、0 .100 -9 .5625 1.1250 .536 .687 .721 10 34 400 5370 14 900 1.0-5.0 .135 -10 .6250 1.1875 .567 .750 .747 12 39 000 6130 16 700 1.0-5.0 .160 -12 .7500 1.3750 .630 .875 .845 13 52 300 7730 22 100 1.0-5.0 .240 -14 .8750 1.6250 .755 .875 .995 6 67 300 10 800 28 200 2.0-8.0 .350 -16 1.0000 2.1250 1.005 1
9、375 1.269 12 137 000 19 300 53 700 2.0-8.0 .970 AEROSPACE STANDARD AS21231SHEET 2 OF 2REV. ABEARING, PLAIN, SELF-ALIGNING, PTFE LINED, WIDE REQUIREMENTS: 1. MATERIAL: BALL: 440C AMS5630 OUTER RACE: AMS5643 (17-4PH), AMS5528 (17-7PH), AISI 410 LINER: SEE PROCUREMENT SPECIFICATION AS8942. 2. SURFACE
10、TEXTURE PER ANSI B46.1. BALL DIA Ra 8 ; BORE, BALL FACES AND OUTER RACE DIA Ra 32 ; ALL OTHER METALLIC SURFACES Ra 125 IN ACCORDANCE WITH ASME B46.1 . LINER SURFACES ARE EXEMPT FROM SURFACE TEXTURE MEASUREMENTS.3. HARDNESS: BALL 55 TO 62 HRC; OUTER RACE 23 TO 35 HRC NOTES: 1. DIMENSIONS ARE IN INCHE
11、S UNLESS OTHERWISE SPECIFIED, TOLERANCES ARE; DECIMALS .010 AND ANGLES 0.5 DEGREE. 2. BREAK SHARP EDGES AND CORNERS AND REMOVE ALL BURRS AND SLIVERS UNLESS OTHERWISE SPECIFIED. 3. DASH NUMBER DESIGNATES NOMINAL BORE DIA IN SIXTEENTHS OF AN INCH. 4. WHEN TESTED IN DE-ICING FLUID THE OSCILLATING LOAD
12、SHALL BE DECREASED TO 80% OF THE SPECIFIED LOAD. 5. EXAMPLE OF PART NO MS21231-7 NOMINAL BORE DIA, DASH NO FROM TABLE 1 BASIC PART NUMBER 6. FOR DESIGN FEATURE PURPOSES, THIS STANDARD TAKES PRECEDENCE OVER PROCUREMENT DOCUMENTS REFERENCED HEREIN. REFERENCED DOCUMENTS SHALL BE OF THE ISSUE IN EFFECT
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