The PXT40B 4 XT Bush w/Bolt by Precision Inc is engineered for keyed pulley applications. Measuring 4 inches, this XT bush ensures a secure fit, enhancing the performance of your machinery. Its durable construction is built to withstand the rigors of industrial use, making it a reliable choice for manufacturers. This bush complies with industry standards, providing safety and efficiency in operation. The included bolt simplifies installation, making it a practical addition to your maintenance toolkit. Optimize your pulley system with the PXT40B bush for improved functionality.