The Craftsman 918-05137 Spindle Assembly supports smooth blade rotation in compatible lawn mower equipment. It connects the mower blade to the spindle and pulley system, helping transfer rotational power through the mower deck during operation. Proper spindle function supports consistent blade movement and reliable cutting performance. Replacing a worn or damaged assembly can help red... https://www.wholetoolbox.com/craftsman-918-05137-spindle-assembly/918-05137.html