CasterHQ stocks top hat bushings, flanged ball bearings, and retainer washers for standard caster and wheel assemblies — shipped same day.
Measure your axle diameter and bearing OD with calipers. A 1/2-inch axle takes a bearing with a 1/2-inch ID — no estimating required.
Most standard casters use 1/2-inch or 3/4-inch axle diameters. CasterHQ part numbers list exact bore dimensions so you can match your current bearing before ordering.
Yes, most top hat bushings and flanged ball bearings follow industry-standard dimensions used across major caster brands.
Cross-reference your bore ID, OD, and overall height against your current part. All three dimensions appear in CasterHQ product specs. When in doubt, call our team.
Steel bearings typically last 2–5 years in normal rolling use. Inspect annually under high load or outdoor conditions for pitting or cage damage.
Plastic flanged washers wear slower under light duty but should be replaced if visibly cracked or deformed. Proactive replacement prevents wheel bore damage, which is a more expensive fix.
Top hat bushings are stamped steel sleeves that create a smooth bore — no rolling elements. Flanged ball bearings use steel balls in a race for lower rolling resistance under load.
Use ball bearings when easy rolling under medium to heavy loads matters. Top hat bushings work well for light-duty or static applications where minimizing cost is the priority.
Yes. Volume pricing is available on all in-stock parts. Contact the CasterHQ team for bulk rates on bearings, bushings, and washers.
Maintenance departments and fleet managers can order parts in case quantities. Call or email for current bulk pricing on specific part numbers.
Three steps: (1) Measure your axle bore ID — use calipers for exact diameter. (2) Match the bearing OD and overall height to your wheel hub cavity. (3) Check load rating: divide total cart weight by caster count × 1.33 safety factor to confirm the bearing capacity is sufficient.
| Spec | Value |
|---|---|
| Capacity Range | 200–500 lbs per caster |
| Wheel Diameter | 8" or 10" |
| Tire Width | 2"–3" |
| Axle Bore | 3/4" |
| Best For | Garden carts, light outdoor equipment, event staging |
| Spec | Value |
|---|---|
| Capacity Range | 400–750 lbs per caster |
| Wheel Diameter | 12" |
| Tire Width | 3.5"–4" |
| Axle Bore | 3/4" or 1" |
| Best For | Equipment carts, loading dock transfers, agriculture, landscaping trailers |
| Spec | Value |
|---|---|
| Capacity Range | 800–1,200 lbs per caster |
| Wheel Diameter | 16" |
| Tire Width | 4"–6" |
| Axle Bore | 1" |
| Best For | Heavy equipment transport, construction sites, rough outdoor terrain, towing carts |
These calculators apply to any caster application—even if you’re browsing a different category. Use them to estimate load rating per caster, select wheel material, and estimate push/pull force. Expand any tool for full analysis + a share-ready spec line.
Engineering Tools Hub
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Load Calculator (dedicated)
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Wheel Diameter Calculator
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Failure Diagnosis Tool
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