PTI 28B-21B metric sprocket with 1-3/4 in. pitch, 21 teeth, single strand, and Type B hub. Designed for ISO/British 28B roller chain. Suitable for power transmission applications requiring a durable, precision-machined sprocket.

PTI 28B-21B Metric Sprocket B-Hub The PTI 28B-21B Metric Sprocket B-Hub is a high-performance component designed for use in various chains and sprocket applications. Engineered with precision and durability, this sprocket is built to provide reliable power transmission in demanding environments. ## Key Features • **Material Construction**: Manufactured from high-quality steel, ensuring superior strength and resistance to wear and fatigue. • **Design Specifications**: Features a standard B-hub design with a plain bore, compatible with various chain sizes. • **Metric Dimensions**: Designed to fit metric chain sizes, specifically accommodating an inner diameter (ID) of 21mm. • **Load Capacity**: Engineered to handle substantial loads, making it suitable for both industrial and automotive applications. • **Manufacturing Standards**: Produced in compliance with industry standards for precision and quality, ensuring a consistent performance across applications. ## Applications • **Industrial Machinery**: Ideal for use in conveyor systems, assembly lines, and other machinery requiring robust power transfer. • **Automotive Systems**: Suitable for various automotive applications where reliable sprocket performance is essential. • **Custom Applications**: Can be integrated into specialized machinery designs, thanks to its versatile B-hub configuration. ## Benefits • **Enhanced Performance**: Provides efficient power transmission, minimizing energy loss and improving overall system efficiency. • **Durability**: The high-strength steel construction ensures long-lasting performance, reducing the need for frequent replacements. • **Versatility**: Its compatibility with a range of chain sizes allows for flexibility in design and application, meeting diverse operational needs. --- *Product information compiled with AI assistance for reference purposes.*