Grey Iron Made Hub Adapters are taper bored to receive 4-hole bush that helps to improve balance at higher speed. These Hub Adapters are made from quality grade close grain grey iron material to ensure optimum performance and cover bush sizes ranging from 1008mm to 5050mm. Hub Adapters are suitable for use with parallel bores and also available in a keyed version for heavy duty applications. Grey Iron Made Hub Adapters can tolerate shock loading and are easy to install as well as maintain.