Rubber tread wheels are some of the most popular because like polyurethane they are versatile and soft. Considered the softest type of wheels ruber tread has the ability to roll over debris, cracks, and even cords without being stopped abruptly and without damaging anything. Most of these industrial rubber wheels are sold with bearings. The two typical sizes we offer are 3/8" and 1/2" inner diameter of bearings to fit 3/8" and 1/2" bolt axles. Find the rubber tread wheels that are right for you.