# DAC40800044 Wheel Hub Bearing: 40×80×44 mm Cartridge Guide

A mid-size automotive hub is defined by three numbers, not by the letters DAC alone. DAC40800044 is a 40 mm bore, 80 mm outside diameter, 44 mm wide wheel hub bearing, typically a sealed double-row cartridge for front or rear axle duty.

Confirm the knuckle bore and shaft diameter on the vehicle or OE drawing. A 40 mm bore unit with a different width will change preload and seal position. Chrome steel (GCr15) is the standard ring material on this listing, with a maintenance-free grease fill on the sealed version.

DAC40800044 is the Made-in-China product page from Shandong TFL Bearing Co., Ltd. Use it to check stock — this size is often ready to ship — and to match seal and ABS details before the press job is scheduled.