The 1 3/8 - 21 SPINE STUB SHAFT from G & G MFG COMPANY is a precision-engineered component designed for reliable power transmission. This stub shaft features a 1 3/8-inch diameter and 21 spline design, ensuring compatibility with various machinery and systems. Constructed from high-strength materials, it offers exceptional durability and resistance to wear, making it suitable for demanding applications. The stub shaft meets industry standards, providing peace of mind regarding safety and reliability. Its compact design allows for easy installation in tight spaces.