Check the listing for details. 4pcs L090 Jaw Coupling Insert for L Jaw Coupling L-Jaw Coupler Set Red. Condition: New. Listed at 19.03 USD. Description:1. The jaw coupling insert is constructed from urethane material, and offers flexibility and durability, ensuring reliable performance within jaw coupling systems.2. The solid design provides enhanced stability and torsional rigidity, allowing for efficient power transmission and vibration-damping capabilities to minimize wear and tear on machinery components.3. Install the jaw coupling insert into the L jaw coupling by aligning the splines and pressing it securely into place, and ensure proper alignment and engagement to optimize the coupling's functionality.4. The jaw coupling center insert is suitable for various industrial applications such as machinery drives, conveyor systems, pumps, and other rotating equipment requiring flexible coupling solutions for smooth power transmission.