LM806649HD NTN Bower tapered roller bearing cone measures 53.975 mm ID with a 19.05 mm cone width. It belongs to the LM806600 catalog series and is built to ABMA Class 4 (Inch) tolerance standards, giving it precise fit and runout control for heavy-duty axle and driveline applications. This cone is sold by Pro Gear and Transmission as a genuine NTN Bower part.Interchanges:Timken LM806649$111.95Features53.975 mm bore (ID)19.05 mm cone widthLM806600 catalog seriesABMA Class 4 (Inch) tolerance ratingTapered roller bearing cone designTech SpecsID: 53.975 mmCone width: 19.05 mmCatalog series: LM806600Tolerance class: ABMA Class 4 (Inch)