Branded MT4-1/2 Imperial Thrust Ball Bearing 4-1/2x8-3/8x3-3/8 inch

Imperial Ball Thrust Bearings: Consisting of two grooved washers and a ball race supported in a cage assembly. For ease of assembly they are separable into the three components permitting each part to be mounted individually, This style of bearing offers some element of shaft location, axial load and limited radial load.
Benefits: Cost effective, separable for ease of mounting, axial loading