The ReliaMark C*3+716*2SPKRM 2S-PK-RM 2PC 3-7/17″ Shaft Collar KG2SC-343-B is a high-quality shaft collar designed for industrial automation and motion control applications. Manufactured by ReliaMark, a trusted brand in the industry, this 2-piece shaft collar is specifically designed to provide a secure and precise fit for shafts with a diameter of 3-7/17 inches. With its durable construction and reliable performance, this shaft collar is an essential component for ensuring smooth and efficient power transmission in various mechanical systems.