wheel caster,polyurethane caster,polyurethane wheel Tread: polyurethane Color: Red, Green, Brown, Black, Yellow, Blue and so on Hardness: As Per Request Diameter Range: 4"-12" Load Capacity: 600-3500lbs We can be customized according to customer samples or you could also send us your own demand decription, like: Material/size/hardness etc, size and design can be manufactured according to clients requirements or samples. We will do it strictly and do our best to meet your requiements. Fast delivery and quick response guaranteed! NO.Reference NumberMaterial for wheelA-Wheel dia.B-Tread widthC-Hub lengthF-Bore dia.E-Centre dia.Load Capacitysuit bearing modelmm/inmm/inmm/inmm/inmm/inkgs/lbs1BNPA10040POLYURETHANE+ALUMINIUM10040403282200ball bearing/62022BNPA12550POLYURETHANE+ALUMINIUM125505047102450ball bearing/62043BNPA15050POLYURETHANE+ALUMINIUM150505047120550ball bearing/62044BNPA16050POLYURETHANE+ALUMINIUM160505047140600ball bearing/62045BNPA17550POLYURETHANE+ALUMINIUM175505047140650ball bearing/62046BNPA18050POLYURETHANE+ALUMINIUM180505047168700ball bearing/62047BNPA20050POLYURETHANE+ALUMINIUM200505047184800ball bearing/62048BNPA25050POLYURETHANE+ALUMINIUM2505050471841000ball bearing/62049BNPA0415POLYURETHANE+ALUMINIUM4"1-1/2"1-5/8"1-3/16"3-3/8"600roller bearing10BNPA0420POLYURETHANE+ALUMINIUM4"2"2-3/16"1-3/16"3-3/8"700roller bearing11BNPA0515POLYURETHANE+ALUMINIUM5"1-1/2"1-5/8"1-3/16"4-7/16"700roller bearing12BNPA0520POLYURETHANE+ALUMINIUM5"2"2-3/16"1-3/16"4-9/32"1000roller bearing13BNPA0615POLYURETHANE+ALUMINIUM6"1-1/2"1-5/8"1-3/16"5-9/32"1000roller bearing14BNPA0620POLYURETHANE+ALUMINIUM6"2"2-3/16"1-3/16"5-9/32"1200roller bearing15BNPA0625POLYURETHANE+ALUMINIUM6"2-1/2"2-3/4"1-3/16"5-5/16"1600roller bearing16BNPA0630POLYURETHANE+ALUMINIUM6"3"3-1/4"1-15/16"5-3/16"2000roller bearing17BNPA0820POLYURETHANE+ALUMINIUM8"2"2-3/16"1-3/16"7-1/16"1500roller bearing18BNPA0830POLYURETHANE+ALUMINIUM8"3"3-1/4"1-15/16"7-3/16"2500roller bearing19BNPA1025POLYURETHANE+ALUMINIUM10"2-1/2"2-3/4"1-15/16"9-3/16"2200roller bearing20BNPA1030POLYURETHANE+ALUMINIUM10"3"3-1/4"1-15/16"9-3/16"3000roller bearing21BNPA1230POLYURETHANE+ALUMINIUM12"3"3-1/4"1-15/16"11-3/16"3500roller bearing