Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
OEM replacements
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: 2.04250.55-BRK1
The 4" x 1.25" Polyolefin Ball Bearing Side-Lock Caster with 1/2" Hollow Rivet (2.04250.55 BRK1) is designed for seamless performance across diverse industrial and commercial environments. Its polyolefin wheel ensures excellent resistance to wear, chemicals, and abrasion, making it ideal for demanding applications. The precision ball bearings allow for smooth and quiet movement, while the side-lock brake provides enhanced stability and control during operation. With a 1/2" hollow rivet for secure mounting, this caster combines functionality and ease of installation, making it an optimal choice for carts, equipment, and material handling tasks.
Our 4" x 1.25" Polyolefin Ball Bearing Side-Lock Caster with 1/2" Hollow Rivet (2.04250.55 BRK1) is built with precision and care to meet rigorous industrial standards. Each caster undergoes thorough quality testing to ensure durability, reliability, and peak performance in various environments. Whether you need a solution for commercial equipment or industrial material handling, this caster delivers dependable results. Backed by our customer satisfaction guarantee, you can trust this product to provide long-lasting value and performance for your specific needs.
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 4" x 1.25" Polyolefin Ball Bearing Side-Lock Caster (Model 2.04250.55 BRK1) is an industrial-grade solution designed to provide reliable performance in a variety of applications. With a durable polyolefin wheel, precision ball bearings, and a side-lock braking system, this caster delivers smooth mobility, excellent load capacity, and enhanced stability. Its zinc-coated finish and wide temperature operating range ensure durability and resistance to harsh conditions, making it ideal for both commercial and industrial environments.
This caster is perfect for carts, equipment, and material handling in environments that demand durability and precision. Its round tread design and hardened raceways make it suitable for industrial floors, commercial spaces, and extreme temperature conditions. Whether in a warehouse, factory, or retail setting, the 4" x 1.25" Polyolefin Ball Bearing Side-Lock Caster offers reliable and efficient performance.
The combination of robust materials, advanced engineering, and thoughtful design ensures that this caster meets the highest standards of quality and performance. Its ability to handle heavy loads, resist corrosion, and operate smoothly in extreme temperatures makes it a reliable choice for businesses seeking long-term solutions for mobility and stability. The addition of a top lock brake system enhances safety and control, making it a practical and versatile option for a wide range of uses.
We are committed to providing products that combine quality, reliability, and value. The 4" x 1.25" Polyolefin Ball Bearing Side-Lock Caster is rigorously tested to meet industrial standards, ensuring durability and performance in demanding applications. With our 3-year limited warranty and dedication to customer satisfaction, you can trust this caster to deliver exceptional results for your business needs.
$51.00
| Wheel Diameter | 4" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 5" |
| Wheel Capacity | 275 lbs |
| Temp Range | -20°F to 180°F |
| Wheel Material | Polyolefin |
| Frame Material | Zinc Plated Steel |
| Mount Style | Plate |
| Rig Type | Swivel with Brake |
| Brake Type | Side Lock Brake |
Designed for engineers, manufacturers, and material handling professionals
