Back to Casters

Chair Casters

These chair casters replace worn office, conference, and dinette chair stems. Casters in this collection range from about 75 to 150 lb per caster. Most use a 7/16 in grip ring stem that clicks into the chair leg socket. Twin-wheel nylon styles suit carpet. Soft polyurethane (poly or urethane), TPR, and rubber treads are the usual pick on hard floors when you want less noise and fewer scuffs. Common sizes are 50 mm and 60 mm twin wheels, plus 2 and 3 in single-wheel swivels. Many listings ship as singles, sets of 4, or sets of 5 so you can refresh a full chair base at once. Confirm the stem diameter and that you need a grip ring before you order. Soft tread helps when hard floors have chips or grit under the chair. Capacities below are per caster unless a listing says set. Other stem mounts for carts and fixtures: stem casters. Soft tread wheels alone: rubber wheels.

Shop by type

8 types

Wheel = wheel diameter · capacity is per caster.

Chair Casters: buying guide

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.

7/16 in grip ring stem2 and 3 in wheelsCarpet and hard floorSets of 4 and 5
▶Watch: Replace Office Chair Casters: Full Install VideoView Video ↓

Shop by Type

What is on this page

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].

Floor first

  • Carpet: hard nylon twin wheels roll well and do not sink in.
  • Hardwood, vinyl and tile: polyurethane, rollerblade style or rubber wheels are softer, quieter and less likely to scratch.
  • Chair that must stay put: see self-braking chair casters, or the side lock versions of the Shepherd 50 mm twin wheel.

Measuring the stem

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.

Chair caster questions

What stem size do office chairs use?

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.

Which chair casters are best for hardwood floors?

Polyurethane, rollerblade style or rubber wheels. Hard nylon is better on carpet.

How many casters does a chair need?

Office chairs usually have five. Dining and stool bases often have four.

How much weight do chair casters hold?

Most singles are rated 50 to 150 lb each. Sets of five are rated 375 to 750 lb.

Sources

  • [S1] CasterHQ product fields (rated load, diameter, width, wheel and core material, temperature range, mount) and product descriptions for the items on this page, pulled October 20, 2026.

Search