88635-2RS Ball Bearing 3/4" x 1-3/4" x 1/2" - Sealed - 88-163588635 2RS Ball Bearing Deep Groove 3 4" ID x 1 3 4" OD x 1 2" Wide Double Sealed This is a deep groove radial ball bearing built for smooth, high speed rotation. With a 3 4 inch inner diameter and durable double rubber seals, its perfect for electric motors, pulleys, and general purpose applications. Comes pre lubricated with grease and ready to drop in. Bore size (ID): 3 4" inch Outer diameter (OD): 1 3 4" inch Width: 1 2" inch Seal type: Double