Resources
Series 40 vs Series 53 Casters: Sizing Up for Heavier Loads
Outgrowing a Series 40 heavy duty caster? See how Series 53 Super Heavy Duty Plus casters compare on wheel size, load ratings, bearings and mounting before you upgrade.
Polyurethane vs Phenolic vs Steel vs Rubber Caster Wheels
Which caster wheel material should you choose? We compare polyurethane, phenolic, steel and rubber wheels on Series 40 heavy-duty casters by load capacity, floor protection, rolling effort and environment.
How to Calculate Caster Load Rating for Your Cart
Sizing casters by dividing the load by four is the most common spec mistake in material handling. Here is the three-wheel rule, a worked example, and the specs that have to match beyond capacity.
Scaffold Casters: Stem Size, Capacity & Brake Guide
Scaffold casters look interchangeable, but stem size, load rating and wheel choice decide whether they fit your tower and hold the load. Here's how to pick.
Rigid vs Swivel vs Locking Casters: How to Build the Right Set
Rigid, swivel, and locking-brake casters each do a different job. Here's how to combine them on a 4-caster set and size load capacity for carts, racks, and scaffold towers.