Taper-Lock Adaptor

ANSI Part Number Example:

TBA 2517B-S-ANSI

TBA = Taper Bushing Adaptor

2517B-S = 2517 Taper Lock Bushing

ANSI = ANSI Set Screws

Note ANSI Adaptor bores are prepared for ANSI (American Standard UNC threads) used in North America, and are not interchangeable with 1/2-12 BSW inch BSW = British Standard Witworth.

Only bushing sizes 2517ANSI, 3525ANSI and ANSIBSW use 1/2-13 inch non-interchangeable ANSI UNC threads.
BSW Part Number Example:TBA 2517B-S-BSW

TBA = Taper Bushing Adaptor

2517B-S = 2517 Taper Lock Bushing

BSW = British Standard Witworth Set Screws

Note BSW Adaptor bores are prepared for BSW (British Standard Whitworth thread) used in Europe, and are not interchangeable with 1/2-13 UNC inch ANSI (American) threads.

Only bushing sizes 2517BSW, 3525BSW and 3535BSW use 1/2-12 BSW inch non-interchangeable BSW threads.
PDF - Sprocket-Taper-LockAdaptor.pdf

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