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.
The Durastar 3/8" ID x 1/2" OD x 1-5/8" Length Steel Spanner Bushing is engineered to provide a precise and reliable fit for wheel and axle assemblies. Built from rugged steel, this spanner bushing offers excellent resistance to wear and deformation under heavy loads, ensuring long-term reliability in industrial and commercial applications.
This steel bushing is ideal for use in carts, casters, dollies, and other wheeled equipment where smooth rotation and load-bearing support are critical. The 1-5/8" length ensures proper spacing, while the tight 3/8" ID and 1/2" OD dimensions provide a snug, secure fit across a variety of installations.
Whether you're replacing worn components or building new assemblies, Durastar's precision-manufactured spanner bushing offers the strength, consistency, and compatibility professionals rely on for dependable operation.
Enhance the life and performance of your caster and wheel systems with the reliable engineering of Durastar steel spanner bushings. Built for stability, precision, and longevity.
Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
Shipping method
Smaller orders ship parcel (UPS/FedEx Ground). Heavy or bulk quantities consolidate to LTL freight. The method and final cost are shown before payment, so there are no post-checkout adjustments.
Payment & procurement terms
New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.
Volume pricing & quotes
Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.
Returns & warranty
Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas and freight deliveries may take longer.
For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.
The Durastar 3/8" ID x 1/2" OD x 1-5/8" Length Steel Spanner Bushing is engineered to deliver consistent, high-performance results in a wide range of wheel and caster applications. Its precisely machined dimensions ensure tight fits that maintain component alignment, reduce friction, and enable smooth rotation even under demanding workloads.
Manufactured from durable steel, this bushing offers exceptional resistance to bending, deformation, and corrosion, making it an excellent choice for both indoor and outdoor environments. Whether you're retrofitting existing equipment or building from scratch, this spanner bushing supports long-term stability and optimal functionality.
Professionals across manufacturing, warehouse operations, and material handling sectors trust Durastar components for their consistent performance and exacting standards. This bushing is no exception—providing a simple, cost-effective solution that enhances wheel performance while safeguarding your hardware from unnecessary wear.
Durastar’s spanner bushings are crafted to meet the expectations of professionals who demand long-lasting precision. Upgrade your wheel and axle systems with components that offer reliable alignment, extended wear resistance, and quality you can trust.
This caster uses a top-plate mount. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
Rated for -20°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).
We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).
$4.00
| Identification | |
| Brand | Durastar |
| Dimensions & Mounting | |
| Mount Style | Plate |
| Load & Performance | |
| Temp Range | -20°F to 180°F |
| Materials & Finish | |
| Frame Material | Zinc Plated Steel |
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