UDC621.825.2:621.643.412 JIS JAPANESE INDUSTRIAL STANDARD Rigid flanged shaft couplings JIS B1451-99 Translated and Published by Japanese Standards Association 9江 Printed in Japan 5S In the event of any doubt arising . the original Standard in Japanese is to be final authority. U 93 The Standard is downloaded from Standard Sharing UDC621.825.2:621.643.412 JAPANESE INDUSTRIAL STANDARD JIS Rigid flanged shaft couplings B1451-1991 1.Scope This Japanese Industrial Standard specifies the rigid flanged shaft couplings (hereafter referred to as the couplings)to be used for general machinery. Remarks:Applicable standards to this Standard are shown in the following: JIS B 0209-Limits of Sizes and Tolerances for Metrie Coarse Serew Threads JIS B 0401-System of Limits and Fits JIS B 0405-General Tolerances Part 1:Tolerances for Linear and Angular Dimensions without Individual 、 Tolerance Indications (ISO 2768-1:1989) JIS B 0903-Cylindrical Shaft Ends JIS B 1002-Dimensions of Widths Across Flats JIS B 1003-Ends of Parts with External Metric Screw Thread JIS B 1181-Hexagon Nuts and Hexagon Thin Nuts JIS B 1251-Spring Lock Washers JIS B 1301-Sunk Keys and Their Corresponding Keyways JIS B 7503-D...