The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.

W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.

Medium Duty High Temp Casters

Plate sizes: 4 x 4-1/2, 4-1/2 x 6-1/4Bolt holes: 2-7/16 x 4-15/16 slotted to 3-3/8 x 5-1/4; 2-5/8 x 3-3/8 slotted to 3 x 3; 2-5/8 x 3-5/8; 2-5/8 x 3-5/8 slotted to 3 x 3Diameter: 4 to 12 inTread: 2, 2-1/2, 3 inCapacity: up to 7,000 lb

Casters on the 4 x 4-1/2 plate pattern suit bake carts, metalworking fixtures, and debris-heavy floors. Catalog chips cover wheel diameters 4 to 12 in and phenolic, nylon, and cast iron treads. Size capacity from the heaviest corner load with shock margin, and keep overall height consistent across the set. Pair swivel and rigid casters for tracking, or use total locks where the cart must park on a grade.