4" Caster Wheel 3307 Lbs - Cast iron PU - Top Plate Mount Outer Diameter - 83mm SMR104-2RS is rubber sealed from

SMR104-2RS is rubber sealed from both sides to protect the bearing from dust or any possible contamination

32305 inner diameter is 25mm

TA1020 Shell Type Needle Roller Bearings 10x17x20

and precision alignment

SMS30G-P Stainless Steel Anticorrosion Slide Bush

4" Caster Wheel 3307 Lbs - Cast iron PU - Top Plate Mount Outer Diameter - 83mm SMR104-2RS is rubber sealed from4" Inch Caster Wheel 3307 pounds Swivel Cast iron polyurethane Top Plate VXB009C100BTWFSPU Extra Heavy Duty Wheel Diameter= 100mm Wheel Width= 50mm x 2mm Wheel Diameter= 4" Inch = 100mm Overall Height= 180mm Overall Height Inch= 7. 087" Mounting Type= Top Plate Top Plate Size= 180mm x 145mm Top Plate: 12mm+housing: 10mm Hole distance= 140mm x 105mm Wheel Core= Cast iron polyurethane Tire= Cast iron polyurethane Bearing type= Precision double ball