Specifically designed for the rugged demands of the automotive industry, Albion 68 Series casters are exception for towing and impact applications. Special construction provides extremely smooth operation at all times. Swivel casters use a sealed precision ball bearing in the swivel raceway with does not require routine maintenance. Precision wheel bearings additionally eliminate the need for lubrication. The yellow zinc dichromate finish provides better corrosion and rust resistance than standard zinc plating.