Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
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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.
























| Tread | Per caster | Floor |
|---|---|---|
| Nylon twin wheel (Shepherd PPA / CasterHQ) | 75 to 90 lb | Carpet and rugs |
| Polyurethane / TPR / soft rubber | About 75 lb where listed | Hardwood, tile, vinyl |
| Shepherd PBH ball (polyolefin) | 80 lb | Multi-direction under tables |
Admin ACTIVE titles for 50mm-2-dinette-chair-casters, pulled October 26, 2026 [S1]. Titles that show 375 lb without set wording are treated as set totals (75 x 5).
Use soft rubber, TPR, or polyurethane 2 in casters on 7/16 grip ring stems. Nylon twin wheels are better when the chairs mostly stay on carpet.
About 75 to 90 lb per caster. A set of 4 at 90 lb each is 360 lb total if the load is even. Keep spare capacity for people shifting in the chair.
Jordan Wilson, CasterHQ · reviewed October 26, 2026 · 844-439-4335 · info@casterhq.com
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