Up to 350 lbs · Light Duty Applications
Up to 7,200 lbs · Industrial Duty
Up to 17,500 lbs · Heavy Industrial
Up to 40,000 lbs · Extreme Load Applications
Up to 40,000 lbs · Increased Maneuverability
Up to 3,100 lbs · Industrial Shock Absorbing
Up to 3,200 lbs - Corrosion Resistant
Stainless Steel
Up to 8,400 lbs.
Explore All Specialty Caster Applications
From Everyday Use to Niche Solutions
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.
Most in-stock items ship same or next business day. Shipping rates shown at checkout.
PRODUCT CODE: 2.03267.91-MTG45
The 3.5" x 1.25" HI-TECH Delrin Bearing Caster with 1-3/8" to 1-7/16" Inside Dia. Round Tubing Expanding Adapter (MTG45) is engineered to provide superior performance in various industrial applications. The high-quality HI-TECH Delrin material, combined with precision ball bearings, ensures smooth, reliable movement even under heavy loads. The expanding adapter design (MTG45) allows for easy installation and secure fitting with round tubing in the specified size range. This caster is perfect for machinery, equipment, or any application requiring enhanced durability, resistance to corrosion, and seamless movement.
Our 3.5" x 1.25" HI-TECH Delrin Bearing Caster with 1-3/8" to 1-7/16" Inside Dia. Round Tubing Expanding Adapter (MTG45) is designed to meet the highest standards of quality and reliability. Every caster is rigorously tested to ensure it meets industrial-grade performance and durability. With its corrosion-resistant Delrin construction and smooth bearing operation, you can trust this caster to handle your business's toughest tasks. We back our products with a customer satisfaction guarantee, ensuring exceptional value and peace of mind for every purchase.
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" HI-TECH Delrin Bearing Caster with Expanding Adapter (MTG45) is specifically designed for high-performance in industrial and commercial applications. With its precision Delrin bearings, corrosion-resistant zinc finish, and durable HI-TECH polyurethane wheels, this caster delivers optimal performance, ensuring smooth movement and lasting durability. It is an ideal solution for machinery, equipment, and any application requiring heavy-duty support and reliable performance under challenging conditions.
The 3.5" x 1.25" HI-TECH Delrin Bearing Caster with Expanding Adapter (MTG45) is engineered to provide optimal performance in environments where durability, mobility, and resistance to wear and tear are critical. Its heavy-duty design, high-performance materials, and corrosion-resistant finish make it a reliable choice for industrial and commercial applications. Whether you're outfitting machinery, equipment, or material handling systems, this caster delivers the stability and reliability needed to keep your operations running smoothly.
We are committed to providing our customers with high-quality products that meet the demands of industrial use. Each 3.5" x 1.25" HI-TECH Delrin Bearing Caster is rigorously tested to ensure it meets the highest performance standards. Backed by a 3-year warranty and meeting RoHS and NSF compliance standards, you can trust that this caster will deliver exceptional value and long-term reliability for your business.
$61.00
| Wheel Diameter | 3-1/2" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 4.56" |
| Wheel Capacity | 250 lbs |
| Temp Range | -20°F to 180°F |
| Wheel Material | Polyurethane |
| Frame Material | Zinc Plated Steel |
| Mount Style | Plate |
| Rig Type | Swivel |
| Brake Type | No Brake |
Designed for engineers, manufacturers, and material handling professionals
