A guide assembly in one embodiment includes at least one guide rigidly supported by a table saw, a bearing assembly including a first, a second, and a third bearing engaged with the at least one guide, and a fence base assembly supported by the bearing assembly, wherein the first and the second bearings are biased in a first direction with respect to the at least one guide and the third bearing is biased in a second direction with respect to the at least one guide, the second direction at least partially opposite to the first direction.