PRODUCT CODE: 2.03267.55-MTG51
The 3.5" x 1.25" Polyolefin Ball Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) is designed for high performance in light to medium-duty applications. The polyolefin wheel offers superior impact resistance and durability, ensuring that your equipment operates smoothly under everyday conditions. Equipped with precision ball bearings, this caster reduces friction, providing a reliable and consistent performance, even with heavy loads. The versatile expanding adapter makes installation easy on square tubing ranging from 7/8" to 15/16" in diameter. Whether for industrial carts, material handling, or commercial equipment, this caster provides superior mobility and reliability.
Our 3.5" x 1.25" Polyolefin Ball Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) is crafted with exceptional care to meet the highest standards of industrial performance. Each caster is rigorously tested to ensure long-term durability and reliable performance in demanding environments. We are committed to offering products that deliver real value to our customers. With our customer satisfaction guarantee, you can rest assured that this caster will serve your operational needs effectively and efficiently.
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 Ball Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) is the perfect solution for your light to medium-duty industrial and commercial needs. Built with superior materials and engineered for precision, this caster ensures smooth, reliable movement even under heavy loads. Its polyolefin wheel, paired with precision ball bearings, offers outstanding durability and performance, reducing wear and enhancing the caster's lifespan.
The caster features a full double ball hardened raceway that improves its overall durability and performance. This robust construction allows it to withstand tough conditions, making it ideal for industrial and commercial use where reliability is critical. Additionally, the multi-temperature grease ensures that the caster operates smoothly in temperatures ranging from -45°F to +180°F, making it a versatile choice for various environments, from freezing warehouses to hot industrial settings.
With a swivel design and a 1.25" wheel tread width, this caster provides both flexibility and stability. The round tread profile of the wheel offers balanced, efficient operation on smooth and slightly uneven surfaces. The caster is ideal for use on 7/8" to 15/16" Inside Diameter Square Tubing, thanks to the included expanding adapter, which ensures a secure and stable fit.
With a load capacity of 230 lbs, this caster is built to handle a variety of industrial and commercial applications, from material handling equipment to light-duty machinery. Whether you're moving carts, machines, or other equipment, the caster ensures a smooth operation, improving mobility and efficiency across your business operations.
This product is backed by a 3-year warranty, providing you with peace of mind knowing that it is built to last. Additionally, it is RoHS compliant and an NSF component (excluding thread guards), ensuring that it meets important safety and regulatory standards for industrial use.
The 3.5" x 1.25" Polyolefin Ball Bearing Caster is designed for professionals who need a reliable, durable, and efficient solution for their industrial and commercial needs. With a focus on performance, ease of installation, and long-lasting reliability, it offers great value to businesses looking to optimize their operations. Whether for material handling, equipment, or machinery, this caster delivers smooth, consistent movement, making it a key component in your business operations.
$62.00
| 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 |
Trusted by 100,000+ Industrial and Commercial Buyers | 98.7% on-time shipment rate
Designed for engineers, manufacturers, and material handling professionals
