Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
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.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.







The two large center wheels carry most of the load and act as a pivot. The small casters at each end steady the cart and let it rock slightly, which is why one end lifts a little when you push down on the handle. Replace center wheels and end casters as matched pairs so the cart sits level [S1].
| Item | Wheel | Rating |
|---|---|---|
| Caster and wheel kits for U-boat platform trucks | 8 in and 4 in polyurethane | 1,800 lb per set of 4 |
| P&H 8 x 2 in replacement wheel | Polyurethane | 1,200 lb |
| 4 x 1-1/4 in end wheel | Polyurethane on polyolefin, -45 to 180°F | 300 lb |
From product titles and fields [S1].
Related: P&H casters and polyurethane casters.
Usually two 8 x 2 in center wheels and 4 in swivel casters at the ends.
The kits here are rated 1,800 lb per set of 4.
The center wheels act as a pivot. If it rocks a lot, the end casters or center wheels are worn and should be replaced in pairs.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
Search
