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1、. . .,. . . . . a 2595532 0079700 390 ANSIfABMA 20 ADOPTION NOTICE ANSUABMA 20, “Radial Bearings of Ball, Cylindrical Roller and Spherical Roller Types, Metric Design”, was adopted on 15 August 1995 for use by the Department of Defense OD). Proposed changes by DoD Activities must be submitted to the
2、 DoD Adopting Activity: Defense Industrial Supply Center, ATTfJ: DISC-EC, 700 Robbins Avenue, Philadelphia, PA 191 i 1-5096. DoD Activities may obtain copies of this standard from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, FA 191 11-5094. The private sect
3、or and other Government agencies may purchase copies from the American Bearing Manufacturers Association, Inc., 1200 19th Street, N.W., Suite 300, Washington, DC 20036-4303. ” . Custodians: Navy - AS Air Force - 99 Amy - AT Adopting Activity: DLA-IS (Project 3 1 10-0970) AMSC NIA FSC 31 10 D-4. Appr
4、oved for public release; distribution is unlimited. Copyright American Bearing Manufacturers Association, Inc., 1996 These materials have been prepared by the American Bearing Manufacturers Association, Inc. However the information contained in these materials has not been independently verified by
5、the American Bearing Manufacturers Association or Information Handling Services, Inc. Neither organization warrants or assumes any liability for the accuracy or completeness of these materials. i 0873073 QOOL348 216 = ANSUABMA Std. 20 - 1996 (Revision and Redesignation of ANSIIAFBMA Std 20 - 1987) A
6、MERICAN NATIONAL STANDARD ABMA STANDARD RADIAL BEARINGS OF BALL, CYLINDRICAL ROLLER AND SPHERICAL ROLLER TYPES METRIC DESIGN Sponsored by American Bearing Manufacturers Association, Inc. Approved September 6, 1996 American National Standards Institute, Inc. 0873033 0003349 L52 AMERICAN NATIONAL STAN
7、DARD Approval of an American National Standard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by the standards developer. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial a
8、greement has been reached by directly and materially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerned effort be made toward their resolution. The use o
9、f American National Standards is completely voluntary; their existence does not in any respect preclude anyone, whether he has approved the standards or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standards. The American National
10、Standards Institute does not develop standards and will in no circumstances give an interpretations of any American National Standard. Moreover, no person shall have the right or authority to issue an interpretations of an American National Standard in the name of the American National Standards Ins
11、titute. Requests for interpretations should be addressed to the secretariat of sponsor whose name appears on the title page of this standard. CAUTION NOTICE This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute required t
12、hat action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of approval. Purchasers of American National Standards may receive current information on all standards by calling or writing the American National Standards Institute. Published by American Bea
13、ring Manufacturers Association (formerly Anti-Friction Bearing Manufacturers Association, Inc.) 1200 19th Street, N.W., Suite 300 Washington, D.C. 20036-2422 o Copyright 1996 by American Bearing Manufacturers Association, Inc. All rights reserved. No part of this publication may be reproduced in any
14、 form, in an electronic retrieval system or otherwise, without prior written permission of the publisher Printed in the United States of America m 0871073 0001350 974 m FOREWORD (This foreword is not part of ANSVABMA Standard 20, Radial Bearings of Ball, Cylindrical Roller and Spherical Roller Types
15、, Metric Design.) This American National Standard specifies boundary dimensions, tolerances and radial internal clearances for metric radial ball, cylindrical roller and spherical roller bearings in common useage in the United States. This standard has been revised to be in close conformity with Int
16、ernational Standards developed by the members of the International Organization for Standardization (ISO). In particular, the language and intent of IS0 15 (Rolling bearings - Radial bearings - Boundary dimensions - General plan), IS0 464 (Rolling bearings with locating snap rings - Dimensions), IS0
17、 492 (Radial bearings - tolerances). IS0 582 (Rolling bearings - Metric series - Chamfer dimension limits), IS0 5753 (Rolling bearings - Radial internal clearance), IS0 8443 (Radial ball bearings with flanged outer ring - Flange dimensions), IS0 12043 (Rolling bearings - Single-row cylindrical rolle
18、r bearings - Chamfer dimensions for loose rib and non-rib sides) and IS0 12044 (Rolling bearings - Single-row angular contact ball bearings - Chamfer dimensions for outer ring non-thrust side) has been followed. Copies of IS0 standards concerning rolling bearings are available from the American Nati
19、onal Standards Institute. Suggestions for the improvement of this standard gained through experience with its use will be welcomed. These should be sent to the American National Standards Institute. Inc., 11 West 42nd Street. 13th Floor. New York, NY 10036. The officers of Accredited Standards Commi
20、ttee B3 operating under the American National Standards Institute procedures and the organizations represented at the time this standard was submitted are as follows: W.G. Looft. Chairman G.T. Satterfield, Secretary American Bearing Manufacturers Association Hydraulic lnstitute Association for Manuf
21、acturing Technology Society of Tribologists and Lubrication Engineers IJ.S. Department of Defense, DISC U.S. Department of the Navy I D 0873073 0003353 800 D ABMA Standards (formerly AFBMA Standards) for Ball and Roller Bearings 1 - Terminology for Anti-Friction Ball and Roller Bearings and Parts 4
22、- Tolerance Definitions and Gaging Practices for Ball and Roller Bearings 7 - Shaft and Housing Fits for Metric Radial Ball and Roller Bearings (Except Tapered Roller Bearings) Conforming to Basic Boundary Plan 8.1 - 8.2 - 9- 10 - 11 - 12.1 - 12.2 - 13 - 14 - 15 - 16.1 - 16.2 - 17 - 18.1 - 18.2 - 19
23、.1 - 19.2 - 20 - 21.1 - 21.2 - 22.1 - 22.2 - 23.2 - 24.1 - 24.2 - 25.2 - 26.2 - Mounting Accessories, Metric Design Mounting Accessories, Inch Design Load Ratings and Fatigue Life for Ball Bearings Metal Balls Load Ratings and Fatigue Life for Roller Bearings Instrument Ball Bearings, Metric Design
24、Instrument Ball Bearings, Inch Design Rolling Bearing Vibration and Noise (Methods of Measuring) Housings for Bearings with Spherical Outside Surfaces Ball Bearings with Spherical Outside Surfaces and Extended Inner Ring Width (Includes Eccentric Locking Collars) Airframe Ball, Roller, and Needle Ro
25、ller Bearings, Metric Design Airframe Ball, Roller, and Needle Roller Bearings, Inch Design Needle Rollers, Metric Design Needle Roller Bearings, Radial, Metric Design Needle Roller Bearings, Radial, Inch Design Tapered Roller Bearings, Radial, Metric Design Tapered Roller Bearings, Radial, Inch Des
26、ign Radial Bearings of Ball, Cylindrical Roller and Spherical Roller Types, Metric Design Thrust Needle Roller and Cage Assemblies and Thrust Washers, Metric Design Thrust Needle Roller and Cage Assemblies and Thrust Washers, Inch Design Spherical Plain Radial Bearings, Joint Type - Metric Design Sp
27、herical Plain Radial Bearings, Joint Type - Inch Design Thrust Bearings of Tapered Roller Type - Inch Design Thrust Bearings of Ball, Cylindrical Roller and Spherical Roller Types - Metric Design Thrust Bearings of Ball and Cylindrical Roller Types - Inch Design Rolling Bearings, Linear Motion, Reci
28、rculating Ball, Sleeve Type - Inch Series Thin Section Ball Bearings, Radial, Inch Design An ABMA Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an ABMA Standard does not in any respect preclude anyone, whether he has approved the stan
29、dard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the standard. ABMA Standards are subject to revision or withdrawal at any time and users who refer to an ABMA Standard should satisfy themselves that they have the latest information
30、 from the Association. 0873073 OD01352 747 Section RADIAL BEARINGS OF BALL, CYLINDRICAL ROLLER AND SPHERICAL ROLLER TYPES, METRIC DESIGN Contents Page 1.Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2. Basic plan
31、 for boundary dimensions fo radial bearings 2.1 Object of the plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.2 Metric and inch equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.3 Non-IS0 dimensions .
32、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.5 Boundary plan for radial bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.4 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
33、. . . . . . . . . . 2 3. Radial bearings with locating snap ring 3.1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 3.2 Dimensions 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
34、4. Radial ball bearings with flanged outer ring 4.1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4.2 Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 5. Special case c
35、hamfer dimension limits 5.1 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5.2 Chamfer dimension limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6. Tolerances 6.1 Definitions . . . . . . . .
36、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.2 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 6.3 Bearing tolerances for dimensions and runouts . . . . . . . . . . . . . . . . . . . . . .
37、 . . . . . 22 6.4 Tolerances for tapered bore bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 1 6.5 Chamfer dimension limits and maximum shaft and housing fillet radii . . . . . . . . . . . . 33 6.6 Radial internal clearances . . . . . . . . . . . . . . . . . . . . . . .
38、 . . . . . . . . . . . . . . . . . 38 Annex A - Inch dimensions (Informative) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . List of figures iv .
39、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . List of tables iv . 111 List of figures Figure No . Page I Graphical representation of the diameter and width series components of the dimension series of the boundary plan for radia
40、l bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Snap ring and snap ring groove dimensions 11 3 Flanged outer ring dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 4 Bearing with locating snap ring .
41、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 5 Cylindrical roller bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6 Angular contact bearing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
42、 . . . . . . . . . . . . . . . . . . . . 19 7 Tapered bore dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 8 Tapered bore with mean diameters and their deviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 9 Chamfer dime
43、nsions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 10 Configurations for cylindrical roller bearings with cylindrical bore and extra large bore chamfer . . 37 Table No . List of tables Page Boundary dimensions 1 Basic plan for boundary dim
44、ensions of metric radial ball and roller bearings (Except tapered roller bearings) Part 1 . Diameter series 7. 8 and 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Part 2 . Diameter series O and 1 . 6 Part 3 . Diameter series 2. 3 and 4 . . . . . . . . . .
45、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 2 Part 1 . Snap ring groove dimensions for dimension series 18 and 19 12 Part 2 . Snap ring groove dimensions for diameter series O. 2. 3 and 4 (except dimension series 00. 82 and 83) . . . . . . . . . . . . . . . . . . . . . . . .
46、. . . . . . . . . 13 3 Part 1 - Snap ring dimensions for dimension series 18 and 19 (except dimension series 00, 82 and 83) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Part 2 - Snap ring dimensions for diameter series O. 2, 3 and 4 . . . . . . . . . . .
47、 . . . . . . . . . . . . . 15 4 Flange dimensions for radial ball bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 angular contact bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 cylindrical roller bea
48、ring rings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 5 Chamfer dimensions for the groove side of the outer ring of bearings with snap ring groove . 20 6 Chamfer dimensions for the non-thrust side of the outer ring of single-row. 7 Chamfer dimensions
49、 for the loose rib and non-rib sides of single-row, Tolerance values 8 Tolerance class ABEC 1 . RBEC 1 (IS0 tolerance class Normal) . 23 9 Tolerance class ABEC 3 . RBEC 3 (IS0 tolerance class 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 10 Tolerance class ABEC 5. RBEC 5 (IS0 tolerance class 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 1 1 Tolerance class ABEC 7. RBEC 7 (IS0 tolerance class 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 12 Tolerance class ABEC 9. RBEC 9 (IS0 tolerance class 2) . . . . . . . . . . . . . . . . . . . . . . . .
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