4" x 2" Orange Poly on Aluminum Wheel Swivel Caster, 3/4"-10 x 4 Threaded Stem - Part # 7RTP042UXBB
Polyurethane on aluminum caster wheels offer similar load capacities to polyurethane on iron while utilizing a lighter-weight, corrosion-resistant aluminum core. The polyurethane tread is chemically & mechanically bonded to the core for significantly stronger adhesion than standard mechanically bonded wheels, helping minimize de-treading while improving resistance to water exposure. The firm Shore A 95 durometer minimizes tread deformation under load, reducing rolling resistance & improving push efficiency. This wheel is also non-marking & floor protective, making it safe for surfaces like hardwood, tile & concrete. Great alternative to steel, nylon & phenolic wheels.
Poly on aluminum wheels are available in a variety of colors, tread profiles & durometers to suit different applications. While color does not affect performance, tread shape & durometer play a major role in how the wheel performs. Crowned treads reduce floor contact, minimizing friction for easier turning & lower rolling effort compared to flat tread designs. Durometer determines tread firmness, which affects cushioning & rolling efficiency. Explore our other caster options for even more performance configurations.
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