American Standard Sprockets
American Standard Pre-Bored- Sprockets
A stocked pre-Bored sprocket includes a Standard Finished Bore to h8 Tolerance Plus a Standard Keyway and two standard set screw over keyway and at 90º (Unless indicated differently) If a standard bore size is not in stock the cost to Bore Keyway and setscrew is $110 (large heavy sprockets may be slightly more) |
ANSI B29.1
Part Number Example:
D60TL20H.2517ANSI
D = Double Strand
60 = No. 60 Roller Chain Sprocket (60 = Single, T60 = Triple)
TL = Taper Lock Type Bushing
20 = 20 Teeth (20H = 20 Hardened Teeth)
2517 = 2517 Taper Lock Bushing
Note ANSI refers to American Standard Unified Threads used in North America. ANSI Bushings use ANSI 1/2-13 UNC (American) threads. They differ from 1/2 inch BSW (British Standard Whitworth thread) 1/2" x 12tpi BSW used in Europe, and are not interchangeable with 1/2 inch ANSI threads.
Only bushing sizes 2517, 3525 and 3535 use 1/2 inch non-interchangeable ANSI threads.
PDF - Sprockets-AmericanStandardforTaper-LockTypeBushings.pdf
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