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.

3" x 1.25" Stainless Steel Casters

This collection holds 3 in x 1.25 in Stainless Steel Casters with mixed wheels, built for light carts, racks, and stands. Casters in this collection are rated 200 lb per caster. Wheels in this category are 3 inches in diameter with a 1-1/4 in tread width. The collection includes rigid and brake models. Wheel options vary, so match the tread to the floor and the load. Common uses include food service, bakeries, hospitals, schools, laboratories, and material handling carts. Match plate size, bolt pattern, and overall height before you order. Read the listing for the exact wheel size, overall height, and mount shown. Confirm the load rating printed on the title before you order. Measure the old wheel or caster before you buy. Check the floor type and the heaviest load the cart will carry before you choose. Call or email CasterHQ with the part number from the old unit if you need help matching it. Polyurethane aisle: polyurethane casters. Wheel hub: replacement wheels.