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The Martin 50BTB21H is a bushing bore roller chain sprocket made from steel material. It features a taper locking design suitable for standard roller chain applications. This sprocket has twenty-one teeth and is compatible with a chain number of fifty with a pitch of five-eighths of an inch.
This sprocket uses a hardened taper bushing that creates a secure grip on the shaft when installed. It meets ANSI standards and features precise machining for quality and consistency.
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