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Polyurethane
Polyurethane Wheels Composed of a polyurethane elastomer, open cast or injection molded, on clean, close tolerance cores. Polyurethane tread is chemically bounded to case iron core. High capacity polyurethane protects floors, is non-marking and delivers quieter operation than standard metal wheels. Features Hardness: 95 Shore A Wheel Face: Available in flat tread Finish: Green tread on silver painted core Temperature Range: -40 degrees up to + 180 degrees Fahrenheit
Bearing Key
| RB | Roller Bearing | | DB | Delrin Bearing | | PB | Plain Bore | | BB | Ball Bearing |
Bearing key indicates the type of bearing you are choosing. When you choose the product you want take a look at the item title.
Title Example: 4" Wheel x 1-1/2" Wide x 1/2" Bore Size RB. Notice the last two letters, follow the bearing key and that will lead you to your bearing type.
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