Drive Sprocket Bearing Fits Case 1845 1845S 1845B 1845C D64175One New Aftermarket Replacement Sprocket Needle Bearing Fits Case Skid Steer Loader Models: 1845, 1845B, 1845C, 1845S 1. 50" ID x 1. 88" OD x 1. 31" Shaft surface to be 58 HRC or equivalent. Mounting Dimensions are based on the Inner Ring rotating and the Outer Ring being stationary, relative to the Load. The Housing should be of High Strength Material. This Bearing also fits with Chain Drive Sprocket # D76529, which is available in our Store, or