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    ASME B17 1-1967 KEYS AND KEYSEATS《键与键槽》.pdf

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    ASME B17 1-1967 KEYS AND KEYSEATS《键与键槽》.pdf

    1、USA STANDARD KEYS AND KEYSEATS USAS 517.1 - 1967 REAFFIRMED 4998 FOR CURRENT COMMllTEE PERSONNEL PLEASE SEE ASME MANUAL AS-11 -$mor The American Society of Mechanical Engineers THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS United Engineering Center 345 East 47th Street New York , N. Y. 10017 U SA STA

    2、N DA RD This USA Standard is one of nearly 3000 standards approved as American Standards by the American Standards Association. On August 24, 1966, the ASA was re- constituted as the United States of America Standards Institute. Standards approved as American Standards are now designated USA Standar

    3、ds. There is no change in their index identification or technical content. UDC 621.886.6 Copyrlght, 1968, by THE.AMERlCAN SOCIETY OF MECHANICAL ENGINEERS Prlnted in U.S.A. Foreword T HE individual USA Standards on Keys were firsr issued in the late 1920s. These were consolidated with the shafting st

    4、andards in the 1934 publication, Standard Shafting and Stock Keys. A revised issue was published in 1943 and withdrawn in 1955 as it was not being sufficiently supported. However, a separate standard on Woodruff Keys, Keyslots, and Cutters (B17f- 1930) was reaffirmed in 1955. In 1962 the USA Standar

    5、ds Committee B17 was reactivated and a sub- committee developed and established this standard based on current in- dustry standards. Following approval by the USA Standards Committee B17 and the sponsor, the proposed revision was approved on September IS, 1967 by the USA Standards Institute, and des

    6、ignated B17.1-1967. 111 . USA Standards Committee B17 Keys and Keyseats OFFICERS U. P. Jennings, Chairman Roger Daniels, Secrefary COMMITTEE MEMBERS AMERICAN GEAR MANUFACTURERS ASSOCIATION G. L. Scott, American Gear Manufacturers Association, Washington, D.C. D. F. Wild, General Electric Company, Pa

    7、terson, New Jersey AMERICAN SOCIETY OF MECHANICAL ENGINEERS, THE U. P. Jennings, E. I. DuPont de Nemours INT = Interference A To (Incl) 3-1/2 Square and 7 Rectangular key widths. All dimensions given in inches. Table 6 Keyseat Tolerances for Electric Motor and Generator Shaft Extensions KEYSEAT WIDT

    8、H Over To (Incl) Width Tolerance DFptX Tolerance - -0.01 5 -0.002 +o . 000 +o . 000 3 /4 1 /4 -0.01 5 -0.001 +o;ooo +0.001 1 /4 3 /4 +o.ooo +o.ooo , 1-1/4 -0.003 -0.015 All dimensions given in inches. 9 USA STANDARD 7. ALIGNMENT TOLERANCES 0.010 MAX 1 I- g KEYSEAT e SHAFT - KEYSEAT 1 OFFSET r BORE I

    9、 LEAD :EYSEAT ,e BORE I I LLEAD LEADJ PARALL EL ISM I KEYSEAT LENGTH I LEAD OVER I TO(INCL) I MAXIMUM - - 4 0.005 10 0.0005 PER INCH IO 4 0.002 - AS RESTRICTED BY TOLERANCE ON s AND f DIMENSIONS ALL DIMENSIONS GIVEN IN INCHES AS RESTRICTED BY KEYSEAT WIDTH AND DEPTH TOLERANCE 10 KEYS AND KEYSEATS 8.

    10、 CHAMFERED KEYS AND FILLETED KEYSEATS In general practice, chamfered keys and fil- leted keyseats are not used. However, it is recog- nized that fillets in keyseats decrease stress concentrations at cornets. When used, fillet radii should be as large as possible without causing excessive bearing str

    11、esses due to reduced con- tact area between the key and its mating parts. Keys must be chamfered or rounded to clear fillet radii. Values in Table 7 assume general condi- tions and should be used only as a guide urhen critical stresses are encountered. -T-G H/2 FILLET RADIUS Table 7 Suggested Fillet

    12、 Radii and Key Chamfer H/2 KEYSEA? DEPTH Over I To (Incl) Fillet Radius 45 Chamfer 1 /8 1 /4 1/2 1/8 7/8 7/8 1 /4 5/32 5/64 1/16 1 :2 3/64 1/32 1-1/4 1-1/4 3/16 7/32 1-3/4 1/4 9/32 1-3/4 2-1 /2 13/32 3/8 All dimensions given in inches. 11 USA STANDARD 9. SET SCREWS FOR USE OVER KEYS Set screw diamet

    13、er selections listed below are offered as a guide but their use shall be de- pendent upon design considerations. 12 ADOPTION NOTICE 1 16 October 1992 for September 15, 1967 ASME B17.1-1967 ACCEPTANCE NOTICE ASME B17.1-1967 was adopted on 16 October 1992 and is approved for use by the Department of D

    14、efense (DoD). The American Society of Mechanical Engineers has furnished the clearance required by existing regulations. Copies of the document are stocked at the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, for issue to DoD activities only. All ot

    15、her requestors must obtain copies from: American Society of Mechanical Engineers United Engineering Center 345 East 47th Street New York, NY 10017 Title of Document: Date of Specific Issue Adopted: Releasing Non-Government Standards Body: Custodians: Army - AR Navy - YD Air Force - 99 Keys and Keyse

    16、ats September 15, 1967, Reaffirmed 1989 American Society of Mechanical Engineers Military Coordinating Activity: Navy - YD (Project 5340-21 11) Review Activity: DLA - IS FSC 5340 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Intentionally left blank Intentionally left blank J00038


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