Quote:Same problem I had on a previous carrier, the bearing seat was worn and allowing the bearing to spin. I put it down to a previous owner neglecting to grease the rear axle.Â
I think the main purpose behind greasing the axle is to aid removal as you pull it through the wheel/carrier spacers and inner bearing races. When the axle nut is done up tight, all the spacers lock the inner bearing races so nothing actually turns directly on the axle when riding, it's the outer races that's connected to the wheel/carrier that turn. In our case, where the carrier seat is worn, this could be caused by either a seized bearing or excessive sideways (out of line) pull on the carrier.Â
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Looking at the pic above, let's say the direction of the chain pull is towards the left, the rear of the sprocket is pointing down and the front of the sprocket is pointing up, every half revolution of the wheel will swap these positions causing a wobble effect of the carrier on the fixed bearing.
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There may only be a very small amount of play at first but multiply this 'wobble' movement by every time the wheel turns and you could soon have a knackered carrier or bearing, which ever weakens first.

