black rubber heavy duty fixed caster

black rubber heavy duty fixed caster rollerbearings zinc plated finish to resist corrosion,bruise and dent etc. wheel made of rubber has excellent anti-abrasion resistence specification: Item numberwheel diameter(mm)wheel width(mm)overall height(mm)bracket finishbearingcapacity(kgs)N83010010050145zinc plated finishball bearing200N83012512550170zinc plated finishball bearing250N83015015050190zinc plated finishball bearing300N83020020050240zinc plated finishball bearing350 function:suggest to use for most enviroment place like workshop,warehouses,industrial equipments,restaurents and other heavy duty equipments.