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Floor Scrubber Parts

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4″ Rubber Steel Wheel 3/4″ Roller Bearing 1-5/8 Hub 350 Lbs. Capacity


  • RS40HB03
  • Quite rolling, semi-cushioned ride
  • Economically priced 
  • Good floor protection

In stock

If you need assistance in properly calculating the total capacity of your caster requirements, please contact us at (800) 222-7837 or for expert advice in guiding you with the right caster for your application.

4" x 1-1/2" Mold on Rubber Wheel With 3/4" Roller Bearing 1-5/8" Hub 350 Lbs. Capacity

  • Rubber Tread Vulcanized to cast iron core.
  • Shock absorbing semi-cushioned ride, rolls easily over small debris, cracks
  • Provides floor protection and quiet rolling 
  • Economically priced 
  • Works well outdoor; however cast iron can rust if this is an issue look at using aluminum or plastic core wheels
  • Black tread can mark; if non-marking are required we suggest a Thermo-Pro/Thermoplastic Rubber
  • Durometer: 80 Shore A (+/-5)
  • Temperature range: -40°F to 180°F

*Additional Bearing Sizes Available

Comparable Part Numbers

  • RCI-4K7
  • RS40HB03
  • MR0410112
  • W-6204-MR-RB-3/4

Recommended Applications

  • Warehouse Carts
  • Waste Containers 
  • Platform Trucks
Weight 2.0 lbs
Dimensions 4.0 × 1.75 × 4.0 in
Wheel Diameter


Tread Width


Wheel Material

Mold on Rubber


3/4" Roller Bearing



Temperature Range

-40° F to 180 ° F


Color May Vary


350 Lbs

Prop 65 Warning Message

This product may contain chemicals known to the state of CA to cause cancer, and birth defects or other reproductive harm.