The Hub X Series 1-3/8" X 21 Spline Bore from Double HH Manufacturing is engineered for high-performance applications. This hub features a 1-3/8 inch diameter and a 21 spline bore, making it compatible with a variety of machinery and equipment. Constructed from durable materials, it ensures longevity and reliability under demanding conditions. The design meets industry standards for quality and performance, ensuring a secure fit and optimal functionality. Ideal for use in agricultural and industrial settings, this hub is essential for effective machinery operation.