The Ariens Company 51537200 52" Lawn Mower Deck Spindle Assembly Kit helps maintain smooth blade rotation and reliable cutting deck performance. Designed as a replacement assembly kit, it supports the spindle system that allows mower blades to rotate efficiently during operation. Replacing worn or damaged spindle components can help reduce unwanted vibration, support consistent cuttin... https://www.wholetoolbox.com/ariens-company-51537200-52-lawn-mower-deck-spindle-assembly-kit/51537200.html