Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
OEM replacements
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.


















Blue elastic rubber casters engineered for the music industry, film & photo studios, broadcast, theater, museum art handling, and AV rental. Non-marking, quiet roll, shock-absorbing, debris-shedding. 220 lb to 770 lb capacity. In stock at CasterHQ Mansfield, TX with same-day shipping.
Case goods casters are non-marking, shock-absorbing, quiet-roll wheels engineered for road cases, music tours, film studios, broadcast carts, theater stage equipment, museum art handling, and AV rental fleets. The Colson Elastique series features a soft elastic rubber wheel with roller bearings that absorbs impact, sheds debris, and protects hardwood, polished concrete, vinyl, and sealed sport floors. Available in 5 wheel sizes (3", 4", 5", 6", 8") and 3 mount types (swivel, swivel with Total Lock brake, rigid) with capacities from 220 to 770 lb per caster. CasterHQ stocks the full series in Mansfield, TX with same-day shipping.
Case goods casters are specified across professional industries where floor protection, quiet operation, and shock absorption matter as much as load rating. Common applications include:
The blue elastic rubber compound is engineered for the failure modes that hurt case goods carts most. Standard hard polyurethane wheels mark hardwood and transmit shock to fragile electronics. Pneumatic wheels go flat under stage and transit conditions. Elastique solves both:
| Performance | Why it matters on case goods |
|---|---|
| Non-marking | Safe on hardwood stages, polished concrete galleries, vinyl studio floors, sealed sport surfaces |
| Shock absorbing | Protects sensitive electronics, mixers, lenses, art crates from impact during load-in and transit |
| Debris-shedding | Sheds gravel, sawdust, glitter, cable scraps that get embedded in softer wheels |
| Quiet roll | Critical for live sound, broadcast, theater, museum, and clinical settings |
| Roller bearing | Sustained capacity over thousands of load-in/load-out cycles without degradation |
| No air loss | Solid rubber — no flat tires mid-tour, no air pumps in the truck |
Below are 6 of the most common case goods caster applications. The Elastique series also serves recording studios, broadcast control rooms, theater stage and prop carts, museum and gallery art handling, AV rental fleets, hospital quiet-roll equipment, library and archive carts, and trade show booth setups — anywhere floor protection, quiet operation, and shock absorption matter.
All 15 SKUs in the series. Same blue elastic rubber compound, different wheel sizes and mount configurations.
| Part Number | Wheel | Mount | Capacity | Top Plate |
|---|---|---|---|---|
| E322RB | 3"x1-1/4" | Swivel | 220 lb | 3-1/8" x 4-1/8" |
| E329RB | 3"x1-1/4" | Rigid | 220 lb | 3-3/4" x 4" |
| E322RB-SWB | 3"x1-1/4" | Swivel + Total Lock Brake | 220 lb | 3-1/8" x 4-1/8" |
| E422RB | 4"x1-1/4" | Swivel | 330 lb | 3-1/8" x 4-1/8" |
| E429RB | 4"x1-1/4" | Rigid | 330 lb | 3-3/4" x 4" |
| E422RB-SWB | 4"x1-1/4" | Swivel + Total Lock Brake | 330 lb | 3-1/8" x 4-1/8" |
| E522RB | 5"x1-1/4" | Swivel | 440 lb | 3-1/8" x 4-1/8" |
| E529RB | 5"x1-1/4" | Rigid | 440 lb | 3-3/4" x 4" |
| E522RB-SWB | 5"x1-1/4" | Swivel + Total Lock Brake | 440 lb | 3-1/8" x 4-1/8" |
| E622RB | 6"x1-7/8" | Swivel | 660 lb | 4-3/8" x 5-5/16" |
| E629RB | 6"x1-7/8" | Rigid | 660 lb | 4-1/2" x 5-5/16" |
| E622RB-SWB | 6"x1-7/8" | Swivel + Total Lock Brake | 660 lb | 4-3/8" x 5-5/16" |
| E822RB | 8"x1-7/8" | Swivel | 770 lb | 4-3/8" x 5-5/16" |
| E829RB | 8"x1-7/8" | Rigid | 770 lb | 4-1/2" x 5-5/16" |
| E822RB-SWB | 8"x1-7/8" | Swivel + Total Lock Brake | 770 lb | 4-3/8" x 5-5/16" |
For touring rigs, I always recommend two swivel + Total Lock brake casters on the front (load-in side) and two rigid on the rear. The brakes hold the case in place on a stage rake or load-in alley, and the rigid rears track straight when you're pushing through narrow corridors. For studio dollies that stay mostly stationary, four total-lock swivels give you precise positioning and full immobilization for camera moves.
A case goods caster is a wheel engineered for rolling cases, racks, and carts that transport sensitive equipment — typically used in music touring, film and photo studios, broadcast, theater, museum art handling, and AV rental. The defining requirements are non-marking wheel material, quiet roll, shock absorption, and reliable bearing performance over high cycle counts.
Blue elastic rubber is softer than industrial polyurethane, which gives it superior shock absorption and quiet-roll behavior. It is non-marking on hardwood, polished concrete, vinyl, and sealed sport floors. Polyurethane wheels can leave marks on hardwood and transmit more impact to fragile case contents.
Elastique is a rubber compound and works on dry asphalt, concrete, and load-in alleys. For prolonged outdoor use, sustained UV exposure, or wet conditions, ask us about phenolic or pneumatic alternatives.
Most road cases run 4 casters. Capacity per caster × 4 × 0.77 (1.3× safety factor for moving loads) = usable cart load. A 4-caster cart with E422RB casters (330 lb each) carries about 1,015 lb. For heavy guitar amps, lighting trusses, or video racks, step up to E522RB (440 lb each = 1,355 lb) or E622RB (660 lb each = 2,033 lb).
Yes. The Colson Elastique series is a common spec on ATA-style flight cases, anvil cases, rack-mount cases, and custom road cases used by national touring acts, broadcast networks, and rental houses. The Total Lock brake variants are particularly popular for stage-positioned cases.
In stock at our Mansfield, TX warehouse. Quantities 1-100 ship same-day for orders placed before 2:00 PM Central. Production runs above 100 ship within 1-2 business days, or drop-ship from Colson factory.
The flyer covers the plate-mount range. We can source stem-mount and threaded-stem variants from Colson on request — call 844-439-4335 or request a quote with your stem dimensions and capacity requirement.
