The Timken Company 45287A70 Tapered Roller Bearing Cone

The Timken 45287 tapered roller bearing cone is a single-cone component engineered for tapered roller bearing assemblies in industrial rotating equipment, delivering reliable support for combined radial and axial loads across demanding operating conditions. It is commonly installed in gearboxes, conveyor systems, mining and aggregate equipment, agricultural machinery, construction equipment, and heavy-duty vehicle axles, where accurate load distribution and durable performance are essential for preventive maintenance, replacements, and retrofits. Technical specifications identify the manufacturer as Timken; product type as a tapered roller bearing cone; bearing type as single cone (TS); series 45200; cone part number 45287; bore inside diameter listed as A70. Common replacement option in this family is Timken 45290, reflecting cross-compatibility within the 45200 series for single-cone tapered roller bearing assemblies. The bore designation A70 and the TS cone geometry support proper fit with mating cups and rollers in compatible assemblies, helping ensure reliable operation when performing OEM replacements and field service.