A-B11713196SM-AI SHIELD,GRASS LOWER AROne New Aftermarket Replacement Lower Arbor Grass Shield for Snapper, Simplicity, and Fits Craftsman Lawn Mowers This lower arbor grass shield (mandrel bearing shield) mounts beneath the mower deck at the blade spindle assembly. It protects the mandrel shaft bearing and lower arbor housing from grass clippings, dirt, rocks, and debris during operation, helping extend the life of the spindle bearings and internal deck components. Compatible Models