This 8" caster offers a high 1000 lb capacity polyurethane tread chemically bonded to a heavy duty cast iron core. The polyurethane tread offers better durability and will roll easier than the traditional rubber tread casters. The polyurethane tread is also non-marking, resistant to most chemicals, protects floors while cushioning the load, and is much quieter than steel wheels.

• 1-3/8" Stem Size, Fits 1.625" or 1.69" Tube Scaffolding
  
• 2 Grease fittings