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.
Wheel = wheel diameter · capacity is per caster.
























Replacement chair casters on 7/16 in grip ring stems: Shepherd 50 mm twin wheels, 2 and 3 in nylon, polyurethane, rollerblade, TPR and rubber wheels, singly or in sets of 4 and 5.








| Caster | Wheel | Rated load | Packs |
|---|---|---|---|
| Shepherd PPA 50 mm twin wheel | Nylon | 75 lb each | Single, 4-pack, 5-pack; side lock options |
| Shepherd PPA 60 mm twin wheel | Nylon | 100 lb each | Single |
| CasterHQ 2 in twin wheel and dinette | Nylon | 90 lb each | Single, set of 4, set of 5 |
| Shepherd PBH 2 in ball casters | Polyolefin | 80 lb each | Single and sets |
| 2 in swivel | Black polyurethane, TPR, soft rubber | 50 to 75 lb each | Single |
| 3 in swivel | Polyurethane, gray rubber, neoprene rubber | 80 to 110 lb each; two 3 in polyurethane set listings at 500 lb per set | Single |
| 3 in rollerblade style | Polyurethane | 150 lb each | Single, set of 5 |
| 3 in twin wheel office chair | Nylon | 750 lb per set of 5 | Set of 5 |
| 3 in thermo rubber 5-packs | Gray TPR | 500 lb per set of 5 | Set of 5 |
| 2 in self-braking | See listing | 75 lb each | Single, set of 5 |
Product titles and fields [S1].
Pull one caster straight out of the chair base. A grip ring stem is a smooth pin with a split ring near the top. Most office chairs take a 7/16 x 7/8 in stem; measure the diameter and the length from the top of the caster to the end of the pin to confirm. A threaded stem needs a different caster.
Most take a 7/16 x 7/8 in grip ring stem, which is what nearly every caster on this page uses. Measure yours to confirm.
Polyurethane, rollerblade style or rubber wheels. Hard nylon is better on carpet.
Office chairs usually have five. Dining and stool bases often have four.
Most singles are rated 50 to 150 lb each. Sets of five are rated 375 to 750 lb.
Jordan Wilson, CasterHQ · reviewed October 20, 2026 · 844-439-4335 · info@casterhq.com
Search
