The 6000 is the size part, the end bit is what type of seal it has, I have no idea what LU stands for but 2RS means the bearings have 2 rubber seals, one each side. 60002RS is what you will want.
@Dry started
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The 6000 is the size part, the end bit is what type of seal it has, I have no idea what LU stands for but 2RS means the bearings have 2 rubber seals, one each side. 60002RS is what you will want.