SKF HM518445 Bearing Cone

SKF HM518445 Bearing Cone is the inner race component of a single-row tapered roller bearing used in trailer wheel-end assemblies. It is designed to be paired with the HM518410 cup to form the complete bearing under standard trailer inner or outer positions. The cone is machined from steel and features a bore of 3.500 in (88.9 mm), an outer diameter of 6.000 in (152.4 mm), and a width of 2.625 in (66.68 mm). The cage is a stamped sheet-metal design, compatible with typical bearing kits that include the corresponding cup and related hardware. The HM518445 designation is used across several manufacturers and cross-referenced in TS (Tapered Single) bearing catalogs, reflecting its role as the inner race for a common trailer axle bearing configuration, including SKF-branded variants such as HM518445 VP. This part is widely specified for trailer hubs in fleet maintenance, where a reliable, interchangeable cone supports the tapered-roller elements and precise load distribution for wheel-end rotation.