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Custom made to order. All sales final.
Each Hamilton product is custom manufactured for your order and ships in about 4-6 weeks. Please confirm all specs before checkout, since made-to-order items aren't eligible for returns, exchanges or refunds. Need help? Call 844-439-4335 or email info@casterhq.com and we'll verify fit for you.
Product Overview:
Introducing the R-ZFFM-83EGB Hamilton Spinfinity, the pinnacle of heavy-duty rigid casters. Designed with the user in mind, this rigid caster guarantees maintenance-free operation, ensuring you get the best value for your money.
The R-ZFFM-83EGB Hamilton Spinfinity is not just another swivel caster. Its maintenance-free kingpinless design makes it the first choice for professionals looking for reliable and long-lasting casters. Whether it's industrial machinery, warehouse trolleys, or heavy furniture, trust this Hamilton product to deliver unmatched performance.
When it comes to mobility solutions, Hamilton stands out as a leader. With the Spinfinity series, they've raised the bar, offering a product that's both user-friendly and optimized for heavy-duty operations. Don't settle for less; choose Spinfinity for peace of mind.
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
Because of its size and weight, this item typically ships LTL freight on a pallet. Smaller add-on items may ship parcel. Freight cost is calculated by destination and shown before payment, or quoted for large orders.
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.
For professionals seeking a robust mobility solution that offers longevity, reliability, and high-end performance, the R-ZFFM-83EGB Hamilton Spinfinity Rigid Caster emerges as a top contender. Here’s an in-depth look at this rigid caster.
Time is money, and regular maintenance checks can disrupt workflow. With the Hamilton Spinfinity, you can set your worries aside. Its design ensures a maintenance-free experience, translating to fewer operational disruptions and more productivity.
Size does matter, especially when it comes to ensuring stability in movement. The 8" x 3" Ergo-Glide XT wheel offers a perfect balance between size and functionality. The wheel material guarantees durability, while its design ensures a smooth glide, even under heavy loads.
The 3/4" sealed precision ball bearings are a testament to Hamilton's commitment to quality. These bearings ensure that the caster swivels effortlessly, reduces friction, and lasts for a long time, even under rigorous use.
With Hamilton's trusted reputation in mobility solutions and the cutting-edge features of the Spinfinity series, it's clear that the R-ZFFM-83EGB is not just another rigid caster. It's a game-changer in the world of heavy-duty operations.
This Hamilton R-ZFFM-83EGB 8" x 3" Ergo-Glide XT Rigid Caster is rated to 2700 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.
This caster runs a Polyurethane wheel with a 3" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.
This caster uses a top-plate mount with a 5" x 7" plate. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
This is a Rigid caster. Rigid casters track straight for directional stability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
The Polyurethane wheel performs best on smooth to semi-smooth floors including sealed concrete, tile, and epoxy. For non-marking or clean-environment needs, ask us about matching tread options.
The overall height (floor to top of plate or stem) is 10-1/4". Account for it when checking equipment clearance, dock height, and ergonomic working height.
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).
Application guidance for load margin, wheel materials, and swivel construction. Confirm ratings against your duty cycle, floor, and temperature before final spec.
Start with total system weight (payload + structure + fixtures), divide by casters that actually share the load, and keep continuous working load per caster at or below roughly 75% of catalog capacity (~25% margin). Heavy-duty kingpinless frames are often used on uneven floors, docks, and towed trains where dynamic load transfer is common — do not assume perfect four-caster share. If impact, drop-offs, or shock loading is expected, treat the margin as a floor, not a stretch goal, and confirm capacity at the wheel diameter and tread you select on this PDP. Dynamic and side loads are separate from static catalog ratings; call out towing or AGV duty when you quote so we can sanity-check the configuration.
Stay with polyurethane when floors are relatively smooth, temperatures stay inside the PU service window, and you want floor protection plus rollability. Move to phenolic, glass-filled nylon, or other high-temp / high-hardness options when heat, certain chemicals, or very high point loads push past what standard PU can sustain. Kingpinless construction solves swivel durability under thrust; it does not raise the wheel’s temperature or chemical limit. Use the wheel material and temperature fields on this product (and sibling SKUs) to match the environment — heat duty and side-thrust duty are independent selection axes.
Kingpin swivels concentrate clamping and much of the axial stack through one pin. Towing hitches, AGV corrections, and side scrub introduce lateral and moment loads that work that pin and the race faces harder than hand-pushed carts. Typical early wear modes include kingpin stretch or hole elongation, race brinelling, and increasing swivel play. Kingpinless designs replace that single-pin stack with a machined or forged raceway that carries thrust through the race path, which is why they are the usual spec for powered towing and higher side-load industrial carts. Pair kingpinless swivels with a wheel and bearing package rated for the same duty — the swivel upgrade alone does not fix an undersized tread or bearing.
$467.00
| Identification | |
|---|---|
| Part Number / SKU | R-ZFFM-83EGB |
| Replacement Wheel Part No | W-831-EGB-3/4 |
| Core | |
| Load Capacity | 2700 lbs |
| Wheel Diameter | 8" |
| Wheel Width | 3" |
| Floor to top of mounting plate (or stem shoulder).Overall Height (OAH)Floor to top of mounting plate (or stem shoulder). | 10-1/4" |
| Rig Type | Rigid |
| Brake | No Brake |
| Mounting | |
| Mount Style | Plate |
| Plate Size | 5" x 7" |
| Recommended Mounting Bolt | 1/2" |
| Wheel | |
| Wheel Material | Polyurethane |
| Compliance | |
| Buy American | Yes |
Your selection is highlighted. Every option shares its wheel size and mount; a Direct fit tag means the same mounting plate — a drop-in replacement. Step up or down in load rating within the same duty class, all in stock.
| Casters (in stock) | Load capacity | Wheel | Type | Overall height | Price | |
|---|---|---|---|---|---|---|
| 2500 lbsLighter duty | 8" × 3"Polyurethane | Rigid | 10-1/8" | $79.00 | View → | |
| 2500 lbsLighter duty | 8" × 3"Polyurethane | Swivel | 10-1/8" | $121.00 | View → | |
| 2700 lbs | 8" × 3"Polyurethane | Rigid | 10-1/4" | $467.00 | Viewing | |
| 2800 lbsHeavier duty | 8" × 3"Cast Iron | — | 10-1/2" | $297.00 | View → | |
| 3500 lbsHeavier duty | 8" × 3"Polyurethane | Rigid | 10-1/2" | $353.00 | View → |
