UtiliTrak® PW series wheel plate assemblies are compact linear guide bearing blocks with pre-installed polymer guide wheels and molded track wiping lubricators. Compact design with 4 each crown roller wheels including 2 fixed location concentric wheels, and 2 adjustable location eccentric wheel for field adjustable fit-up to linear guide track. Polymer over molded stainless steel wheels are ideal for light load applications in corrosive environments. Crown rollers accommodate misalignment of mounted track surfaces. Provides ultra quiet operation.