Here’s the lowdown on our caster. We have now sold in excess of 400,000 of these. This wheel is heavy duty. Works very nicely in highly demanding rental operations. The stem this caster wheel is 1.375″ OD (#6 tube) with a 4 inch length. It has a double safety margin built into the load rating. Our wheel is heavy duty, load tested to handle 500 lb with an 8-to-1 safety margin. It’s cast iron frame has a rubber exterior that is two inches wide and over an inch thick. There are ball bearings in the pivot mechanism to handle high loading. It’s double locking, so the wheel cannot turn or rotate when locked. Finally, it’s fitted with two zinc-plated grease fittings to keep things rolling smoothly.
The stem on this caster is 1.25″ OD (#5 tube) with a 4″ length. It has a double safety margin built into the load rating. Our wheel is heavy duty, load tested to handle 500 lb. with an 8-to-1 safety margin. Load test results are a 1.375″ stemmed wheel (#6 tube).
This wheel is an 8″ cast-iron wheel with a rubber overlay that is 2″ wide with over an inch of rubber covering the iron caster wheel. There are ball bearings in the pivot mechanism to handle high loading. Double zinc grease fittings. Double locking, it has locks to prevent wheel pivot and locks to prevent the scaffold caster wheel from rolling. Upper steel body is galvanized. Hole location on stem is 2.5 inches from the base. In short… why pay more?