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8" Pneumatic Swivel Caster with Brake 4" x 4-1/2" Top Plate – 250 lb | CasterHQ

Wheel
8" x 2-1/2"
Capacity
250 lbs
Overall Height
10"
Plate Size
4" x 4-1/2"
In Stock · Ships 1-2 Business Days
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Volume pricing: 50+ saves 5% · 100+ saves 10% · 200+ saves 15% · fleet orders: request custom pricing

PO Net 30 ACH Tax-Exempt VISA AMEX DISCOVER
Business Purchasing
  • Purchase orders accepted for approved accounts
  • Net 30 terms for qualified businesses
  • ACH, credit card, and tax-exempt ordering
  • Bulk and contract pricing on fleet quantities
Jordan W., Founder Bob C., Director of Sales
Not sure this is the right spec? Jordan (Founder) and Bob (45+ years in casters) review applications before you order.
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Product Overview
At a glance
Load capacity250 lbs
Wheel8" × 2-1/2"
MountPlate — 4" x 4-1/2"
TypeSwivel with Brake with brake
Overall height10"
Temperature-20°F to 180°F

8-Inch Swivel Pneumatic Caster:

Versatile, Durable, and Reliable

Caster HQ’s 8-inch Swivel Pneumatic Caster is engineered to deliver superior performance in both indoor and outdoor environments. With air-filled pneumatic wheels, these casters offer exceptional shock absorption and a cushioned ride, making them ideal for transporting delicate or fragile cargo. Their robust design ensures smooth operation over rough terrains, such as gravel and grass, without sinking or losing stability.

Key Features:

  • Smooth Mobility: The pneumatic wheels are designed to provide a quiet and cushioned ride, effectively absorbing shocks and minimizing noise, which is essential in environments requiring minimal disruptions, like hospitals, laboratories, and TV studios.
  • Versatile Applications: Suitable for both indoor and outdoor use, these casters excel in varied settings, from healthcare facilities and electronic labs to outdoor venues and construction sites. They can easily navigate over uneven surfaces, including gravel, grass, and thresholds.
  • Enhanced Stability: The wide footprint of the 8-inch wheels ensures stability and prevents sinking into soft surfaces, making them perfect for use on lawns and gravel paths.
  • Durable Construction: Built with high-quality materials, these casters are designed to withstand tough environments and heavy-duty usage, reducing downtime and maintenance costs.
  • Top Locking Brake: Equipped with a top locking brake for easy on/off lever action, allowing you to securely lock the wheel in place, ensuring safety and stability during use.

Common Problems and Solutions:

  • Capacity Overload: Exceeding the recommended load capacity can lead to caster failure. Ensure the load is evenly distributed and within the capacity limits to prevent this issue.
  • Swivel Offset: An incorrect swivel offset can compromise the caster’s structural integrity. Ensure the offset is balanced to handle the intended load effectively.
  • Environmental Factors: Extreme temperatures and weather conditions can affect caster performance. Choose casters made from temperature-resistant materials and regularly maintain them to avoid rust and wear.

Applications:

  • Healthcare: Ideal for hospital carts and medical equipment, providing smooth and quiet operation.
  • Retail and Hospitality: Perfect for store fixtures, hotel bellman carts, and service trolleys.
  • Industrial and Construction: Suitable for dollies, hand trucks, and equipment used in rugged outdoor environments.

Upgrade your mobility solutions with Caster HQ’s 8-Inch Swivel Pneumatic Caster, designed for reliability and performance across various applications. Experience the ease of movement and durability with our premium pneumatic casters.

Technical Specifications:

  • Wheel Diameter: 8 inches
  • Wheel Type: Air-filled pneumatic
  • Load Capacity: 250 lbs per caster
  • Top Plate Size: 4" x 4-1/2"
  • Recommended Speed: Low-speed, manually moved applications
  • Brake Type: Top locking brake for easy on/off lever action

Enhance your equipment’s mobility and ensure a smooth, reliable ride with our 8-Inch Swivel Pneumatic Casters. Order now to experience the superior quality and performance of Caster HQ products.

Ordering & Shipping Information

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

Purchase orders — accepted from approved accounts
Net 30 terms — available on approved credit
ACH & all major cards — Visa, MC, Amex, Discover
Tax-exempt — submit your resale/exemption certificate

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.

Typical transit times after shipment

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.

Need an exact freight quote or blanket PO?

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.

Frequently Asked Questions

What is the load capacity of this caster?+

This 8" Pneumatic Swivel Caster with Brake 4" x 4-1/2" Top Plate – 250 lb is rated to 250 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.

What plate size and bolt pattern does it use?+

This caster uses a top-plate mount with a 4" x 4-1/2" plate and a 2-5/8" x 3-3/8" slotted to 3" x 3" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.

Is this a swivel or rigid caster, and how does the brake work?+

This is a Swivel with Brake caster with a wheel brake. Swivel casters rotate 360 degrees for full maneuverability. The brake locks the wheel to hold the load in place. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.

What temperature range can this caster handle?+

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.).

What is the overall mounted height?+

The overall height (floor to top of plate or stem) is 10". Account for it when checking equipment clearance, dock height, and ergonomic working height.

How do I order, and what are the terms?+

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).

8
8" Pneumatic Swivel Caster with Brake 4" x 4-1/2" Top Plate – 250 lb | CasterHQ

$71.00

Technical Specifications

Dimensions & Mounting
Wheel Diameter 8"
Wheel Tread Width 2-1/2"
Overall Height 10"
Plate Size 4" x 4-1/2"
Bolt Hole Pattern 2-5/8" x 3-3/8" slotted to 3" x 3"
Mount Style Plate
Rig Type Swivel with Brake
Load & Performance
Wheel Capacity 250 lbs
Temp Range -20°F to 180°F
Brake Type Side Lock Brake
Materials & Finish
Frame Material Zinc Plated Steel
Reference Dimensions
BRAKE 10" OVERALL HEIGHT 8" x 2-1/2" WHEEL DIA x W 4" x 4-1/2" PLATE
Overall Height10"
Wheel8" x 2-1/2"
Top Plate4" x 4-1/2"
Bolt Pattern2-5/8" x 3-3/8" slotted to 3" x 3"
Illustrative caster profile drawn to this item's proportions — dimensions are manufacturer specification values. Confirm against the technical table before ordering.
Will This Caster Handle Your Load?
Enter your loaded weight — we derate to 3 effective casters on a 4-caster rig, per industry practice for uneven floors.
Rated capacity: 250 lbs per caster. For dynamic loads, towing, or debris-strewn floors, apply additional safety factor · full engineering tools →
Fitment & Interchange
MountPlate
Plate Size4" x 4-1/2"
Bolt Pattern2-5/8" x 3-3/8" slotted to 3" x 3"
Rig TypeSwivel with Brake
BrakeSide Lock Brake
Slotted holes — fits multiple bolt patterns, ideal for retrofits
Replacing an existing caster? Match the bolt pattern first, then wheel size · more 4" x 4-1/2" plate casters →

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