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.

8" x 5" Casters

Custom made to order. All sales final.

Each Hamilton product is custom manufactured for your order (lead time is shown on each product page). Please confirm all specs before checkout, since made-to-order items aren't eligible for returns, exchanges or refunds. Need help? Call 844-439-4335 or email info@casterhq.com and we'll verify fit for you.

Diameter: 8 inTread: 4 to 5 inCapacity: 8,700 to 9,600 lb per casterPlate sizes: 8-1/2 x 8-1/2

The four polyurethane casters here come from Hamilton with 8 in wheels, rated 8,700 to 9,600 lb each. The common top plate is 8-1/2 x 8-1/2 in, with swivel and rigid versions, and none has a brake. You will find a Hamilton MDD-84SWF70D 8 x 4 in UltraGlide dual wheel swivel caster rated 8,700 lb and a Hamilton MDD-85SWF70D 8 x 5 in UltraGlide rigid dual wheel caster rated 9,600 lb here.