Auto Parts Half circle Key

Engineered for critical shaft-to-hub connections in demanding automotive applications, our high-precision Semi-Circular Keys deliver unmatched reliability and performance. Manufactured from rigorously tested, high-tensile carbon steel or alloy steel, these keys feature an exact semi-cylindrical profile ensuring maximum surface contact and secure torque transmission. Their robust design effectively prevents slippage, absorbs shear stress, and withstands intense vibration and rotational forces within engines, transmissions, pumps, and drivetrain assemblies. Available in exacting standard sizes and custom specifications, our keys guarantee perfect fitment for pulleys, gears, couplings, and sprockets. Trusted by OEMs and Tier-1 suppliers worldwide, they are the proven solution for maintaining precise alignment, operational integrity, and long-term durability in your automotive power transfer systems. 

Automotive Chassis Suspension System Cover And Bracket Parts Tapered Bushings Main Gear Shift Assembly Pull Fork Shaft Main Shift Shaft