The Murray 1722194SM Lawn Mower Pulley & Hub Assembly helps transfer rotational power within compatible mower drive systems. This replacement assembly connects with the belt and related components to rotate the attached mechanism during operation. It supports proper power transmission and helps maintain consistent mower performance. The assembly can replace a worn, damaged, or faulty ... https://www.wholetoolbox.com/murray-1722194sm-lawn-mower-pulley-hub-assembly/1722194SM.html