Rear Wheel Bearings

Hello,
I,m having problems with rear wheel bearings on 115 jtd 2002/3 One was replaced at 56000, and the same side at 75000, now it has gone again at 82000. The bearing appears to have overheated and the grease is like putty. My local independent garage has shown me that the caliper/bearing mounting plate that sits against the stub axle hub, has the pressed steel shroud between them thereby slightly tilting the caliper/bearing mounting plate. When he tightens the main nut the bearing "binds" off and on each revolution which is probably the cause of them failing. The other side wheel bearing is set up the same way but seems to be ok. When he mounts the Caliper/bearing plate flush against the axle hub without the pressed steel part in between, the bearing runs smoothly. Any helpful information/comments anyone. Also can someone confirm the cure for the clutch pedal disengaging right near the floor. (master cylinder spring??)