C1060L Lower Fuser roller issue

[LaziF]

Hello,

anyone have an idea what the issue could be ? Brand new belt and lower fuser roller right side looks like this just after several thousand prints, the left side still looks like new. The belt before(2ndpic) got destroyed in the same way

[Ziggy]

Have you replaced the lower fuser roller ,bearings and heat sleeves?
Did you replace the rollers inside of the belt and there bearings and heat sleeves?