INCH SIZE KEYS AND KEYSEATS ASME B17.1

ANSI Standard Inch Series Keys and Keyseats.—American National Standard, B17.1 Keys and Keyseats, based on current industry practice, was approved in 1967, and reaffirmed in 1989. This standard establishes a uniform relationship between shaft sizes and key sizes for parallel and taper keys as shown in  FILE 

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