1. Math the load — cart weight + 30% margin
Total cart load (cargo plus cart frame) divided by 4 casters, then add 30% safety margin for shock peaks at thresholds. Example: 2,000 lb total cart weight = 500 lb per caster + 30% = 650 lb. Pick a caster rated AT LEAST that high. The 800 lb poly-on-polyolefin or 1,000 lb semi-steel both work.
2. Match plate dimensions to existing equipment
The 5″ x 2″ standard mount is the 4″ x 4-1/2″ top plate with 4 bolt holes. Almost all 5x2 casters in this collection use this plate — matches the dominant medium-heavy industrial mounting pattern across manufacturer brands.
3. Floor condition picks the material
Smooth concrete: any material works. Polyurethane wins on longevity. Rough floors with seams or debris: semi-steel or phenolic for chip resistance. Hot environments (paint booths, dryers): phenolic. Daily washdown (food, pharma): step over to poly-on-aluminum for corrosion-proof hub.
4. Swivel configuration based on cart maneuvering
Standard 4-caster pattern: 2 swivel front + 2 rigid rear for predictable straight-line tracking. All-swivel for tight maneuvering. All-rigid for tow-line operation. Brake on at least one corner when the cart parks under load — see Total Locking Casters for total-lock variants.
Engineer tip: the 5″ x 2″ size has an interesting capacity quirk — the standard polyurethane on polyolefin caps at 800-1,100 lb, but the red polyurethane on cast iron variant jumps to 4,000-4,400 lb on the same wheel size. The difference is the CORE material: polyolefin is plastic, cast iron is metal. If you need more than 1,200 lb at 5″ x 2″, you must move to an iron-core variant. See our
Red Poly on Iron Wheels for the HD spec.
What plate dimensions does a 5x2 caster use?
Almost all 5″ x 2″ casters in this catalog use the 4″ x 4-1/2″ top plate with 4 bolt holes — the dominant medium-heavy industrial mount across Hamilton, Albion, Faultless, Caster Concepts, and Sirius HD product lines. A few specialty 5x2 casters use the larger 4-1/2″ x 6-1/4″ plate when paired with kingpinless construction at the higher capacity tiers.
Polyurethane or phenolic — which is the right pick?
Polyurethane wins on daily-use service life and non-marking floor protection. Phenolic wins on heat resistance (to 450°F continuous) and cost (typically 20-30% less than polyurethane). For most warehouse and manufacturing applications: polyurethane. For paint booths, bakery-adjacent, or any application near continuous heat: phenolic. See the broader Phenolic Casters collection for the heat-resistant spec.
What’s the maximum capacity for a 5″ x 2″ caster?
4,400 lb per caster in the green polyurethane total-lock configuration. Standard red polyurethane on cast iron hits 4,000 lb. Above 4,400 lb you need to step up to a larger wheel diameter or move to kingpinless construction. See Red Poly on Iron Wheels or Kingpinless Casters for the heavier classes.
When do I need a brake variant?
Whenever the cart parks under load. Side-lock brake locks wheel rotation only (cart can’t roll). Total-lock locks wheel AND swivel (cart can’t roll OR pivot). For operating-room equipment, prep stations, photo studios, and any cart-must-not-move application, specify total-lock. Standard practice: 2 brake corners + 2 swivel corners for 4-caster carts.
Can wheel-only replacements work on the existing caster yoke?
Yes, if the bearing assembly is still tight and the yoke isn’t bent or worn. Five wheel-only options stocked in 5″ x 2″ with 1/2″ or 3/4″ bore. Replacing only the tread costs about 35-45% of a full caster — significant savings on fleet replacements where you have hundreds of casters but most yokes are still good.
Why is the 5″ x 2″ the most-stocked size in your catalog?
It’s the dominant medium-heavy industrial spec — the wheel size where the load capacity (up to 4,400 lb), deck-height clearance (5″ wheel raises deck by ~5.5″ including yoke), and floor-seam crossing all balance well. Below 5″ you give up shock-load capacity; above 5″ you raise the cart deck unnecessarily. Most industrial cart and AGV designs converge on the 5″ x 2″ spec by default.
Cross-reference between brands?
Supported. Hamilton, Albion, Faultless, Caster Concepts, Service Caster, Colson all stocked at 5″ x 2″. Bring a competitor part number and we’ll match to the closest CHQ-cataloged equivalent. Email info@casterhq.com or call 844-439-4335 with the existing part number for next-business-day cross-reference response.
Ship time and freight class?
Stock 5″ x 2″ casters ship same day from Mansfield, TX before 3 pm Central. Standard polyurethane and phenolic ship UPS Ground. Red poly on iron and heavy semi-steel variants may ship LTL freight depending on quantity. Engineer cross-reference: next-business-day response from info@casterhq.com.
1,014 styles in stockThe deepest 5″ x 2″ inventory in B2B caster distribution.
Every brand authorizedHamilton, Albion, Faultless, Caster Concepts, Service Caster, Colson stocked.
Same-day ship from TexasMansfield, TX warehouse. Stock orders ship before 3pm Central.
Engineer cross-referenceMatch competitor part numbers to CHQ equivalents within one business day.
