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.

Under 350 lbs. each
351–675 lbs. each
676–1,250 lbs. each
1,251–2,000 lbs. each
2,001–4,000 lbs. each
4,001–7,500 lbs. each
7,501–10,000 lbs. each
10,001–15,000 lbs. each
15,001–20,000 lbs. each
20,001–30,000 lbs. each
30,000+ lbs. each

3" x 1" Rubber Casters · 90-100 lb

Plate sizes: 2-3/8 x 3-5/8Bolt holes: 1-3/4 x 2-7/8Diameter: 3 inTread: 7/8, 1 inCapacity: up to 100 lb

Match a 2-3/8 x 3-5/8 top plate when bolting casters under finished floors and quiet institutional carts. You will see wheel diameters 3 in, rubber treads, and capacities 90 to 100 lb across the SKUs listed below. Use kingpinless or heavy plate series when shock loads keep shearing kingpin races. Softer treads quiet finished floors; harder compounds last longer on chips, heat, and rough concrete.