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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.
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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: 2.04267.441-MTG51
The 4" x 1.25" Performa Delrin Bearing Caster with 7/8" to 15/16" Inside Dia. Square Tubing Expanding Adapter (MTG51) - 2.04267.445 MTG51 is designed to provide superior performance and reliability in a wide range of applications. Featuring high-quality Performa Delrin bearings, this caster delivers smooth, low-resistance movement, ensuring easy maneuverability. The expanding adapter makes installation a breeze, allowing quick and secure mounting on square tubing. This caster is ideal for environments requiring precision and durability, offering dependable performance even under moderate loads.
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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.
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The 4" x 1.25" Performa Ball Bearing Caster with Expanding Adapter (MTG51) is designed for precision and durability in industrial and commercial applications. Built with a load capacity of 300 lb, this caster ensures smooth, easy movement even under heavy loads. The Performa ball bearing design delivers minimal rolling resistance, promoting excellent maneuverability across various surfaces.
Designed with a focus on durability and functionality, the 4" x 1.25" Performa Ball Bearing Caster is built to withstand heavy-duty usage. The grey-on-grey color scheme provides a sleek, professional appearance that blends seamlessly into both industrial and commercial settings. Its robust construction ensures a long-lasting product, even in tough environments that demand reliability and resilience.
This product is backed by a 3-year warranty, providing peace of mind and confidence in its long-term performance. Additionally, the caster is RoHS compliant, ensuring it meets the highest environmental standards. It is also NSF component-approved (excluding thread guards), making it suitable for use in a wide range of regulated industries.
The 4" x 1.25" Performa Ball Bearing Caster with Expanding Adapter (MTG51) is an excellent choice for light to medium-duty industrial and commercial applications. Its versatility allows it to be used in environments such as warehouses, factories, and retail spaces. Whether you're moving carts, equipment, or machinery, this caster ensures smooth and efficient mobility.
$61.00
Designed for engineers, manufacturers, and material handling professionals