Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
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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.
PRODUCT CODE: 2.03267.53-MTG55
The 3.5" x 1.25" Polyolefin Delrin Bearing Caster with Square Tubing Expanding Adapter (MTG55) is built to provide reliable, smooth, and efficient movement for industrial applications. The Polyolefin material is engineered for durability, offering excellent resistance to wear, impact, and chemicals. The Delrin bearing provides precise, low-friction movement, allowing for enhanced performance and quiet operation even under heavy loads. The expanding adapter (MTG55) ensures compatibility with square tubing sizes ranging from 1-3/8" to 1-7/16" inside diameter, providing versatile mounting options. This caster is ideal for use in carts, machinery, and industrial equipment where smooth operation and long-term durability are essential.
Our 3.5" x 1.25" Polyolefin Delrin Bearing Caster with Square Tubing Expanding Adapter (MTG55) is crafted with the highest standards of quality and performance. Every caster undergoes rigorous testing to ensure it meets industrial-grade requirements, guaranteeing reliability and durability. We are committed to providing products that offer exceptional value, durability, and long-term performance. With our customer satisfaction guarantee, you can trust the quality and performance of this caster in any demanding industrial setting.
Transparent pricing
All pricing and quantity discounts are applied automatically. No promo codes required and no post-checkout price changes.
Upfront shipping costs
Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.
Business-friendly ordering
We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.
Real support from product specialists
Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.
Trusted by industrial and commercial customers
CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.
When will my order ship?
In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.
Will shipping cost more at checkout?
Shipping is not free on most orders. Your final shipping cost is shown before payment.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
The 3.5" x 1.25" Polyolefin Delrin Bearing Caster with Square Tubing Expanding Adapter (MTG55) offers exceptional durability, smooth operation, and versatile mounting options, making it ideal for a wide range of industrial applications. Constructed with high-quality Polyolefin material and Delrin precision bearings, this caster delivers outstanding performance in both heavy-duty and sensitive environments. Its sturdy design ensures optimal functionality and longevity, making it a reliable choice for carts, machinery, and industrial equipment.
This caster is ideal for use in industrial environments where smooth movement, durability, and reliability are essential. Common applications include:
We are committed to providing products that deliver exceptional value, quality, and performance. Our 3.5" x 1.25" Polyolefin Delrin Bearing Caster with Square Tubing Expanding Adapter (MTG55) undergoes rigorous testing to ensure it meets industry standards and exceeds customer expectations. Backed by a 3-year warranty, we offer a satisfaction guarantee for peace of mind. Our casters are engineered to deliver reliable performance in even the most demanding industrial settings.
$55.00
| Wheel Diameter | 3-1/2" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 4.56" |
| Wheel Capacity | 230 lbs |
| Temp Range | -20°F to 180°F |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
| Mount Style | Plate |
Designed for engineers, manufacturers, and material handling professionals
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