Don't think it's fixed to the carrier.
From the manual:
(Section JJ.14)
A wheel speed sensor is integrated into each of the four hub bearing assemblies and supplies a signal to
the ABS control module. The module outputs a road speed signal to the engine ECM, and also to the instrument
pack for speedometer operation.
Output from each wheelspeed sensor can be checked using the Scan 2 tool, and if found to be faulty or
absent, the complete hub assembly should be renewed - refer to sub-section CI.5 (front) or DH.4 (rear).
(Section CI.5)
The sealed front wheel bearings are contained in a steel housing secured to the hub carrier with three
'Torx' bolts. The double row, angular contact, ball bearing is retained in the outer housing and also onto the
hub spigot by a shoulder and a peening operation, and is inseparable for service. Note that all four hub assemblies
are common, and incorporate a wheel speed sensor in the bearing unit, with a flying lead terminating
in an electrical connector plug secured by a camber shim plate bracket.
If there is found to be any discernible free play in the hub bearing, or any roughness or tight spots can be
felt, or any signs of lubricant expulsion are evident, the hub assembly should be replaced - there is no provision
for adjustment.
So you can at least powdercoat the carrier after you remove the hub/bearing.