MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity CasterHQ

MEDIUM DUTY 4"X 2" CROWN POLYURETHANE ON IRON WHEEL - RIGID CASTER 800 lbs Capacity

Volume discounts applied at checkout

50-99 units: 5% Off
100-199 units: 10% Off
200+ units: 15% Off

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$42.00 USD - $50.00 USD

Status: In Stock

Most in-stock items ship same or next business day. Shipping rates shown at checkout.

PRODUCT CODE: MD4X2RPIR

Product Overview

POLYFLEXON CAST IRON RIGID CASTER

Caster HQ's Polyurethane Elastomer tread chemically bonded to cast iron core offers high weight capacities while providing good floor protection and quiet rolling operation. Optional precision ball bearings require less effort to start up and maintain a rolling load; they also generate less friction heat and may prolong the life of the wheel. Works well in both indoor and outdoor environments; however cast iron core can rust; if this is an issue look at using aluminum or plastic core wheels.

• Uniquely formulated “Flex Compound” polyurethane elastomer is chemically bonded to heavy cast iron core.
• Combination of the round PolyFlexon® tread and sealed precision ball bearings minimizes surface friction, enables wheel to turn easily and requires less effort to startup and maintain a rolling load.
• PolyFlexon wheel offers a semi-cushioned ride, is non-marking and is capable of rolling over small debris (metal shavings, door & floor joints, etc.) • Great for manually pushed carts & equipment.
• Durometer: 85 Shore A (+/-5).
• Temperature range: -40° F to 180° F

Technical Specs

Wheel Diameter: 4"
Tread Width: 2"
Tread Face: ROUND / DONUT TREAD
Durometer: 85A (+/-5)
Hub Length ( Width where Axle Goes Through ) : 2 7/16"
Maximum Capacity: 700 lbs each
Wheel Bearing: ROLLER BEARING
Spanner: 1/2"
Axle Diameter: 1/2"

Key Features

CASTER FORK:
• Features wheels with 1-1/2” and 2” tread widths
• Large selections of wheels, bearings
and brake options
• Matching total-locking casters available
• Bright zinc finish
• Majority of this series and wheel types
are NSF listed

Ordering & Shipping Information

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.

Flat-rate shipping by order size. Final shipping cost shown before payment.
No post-checkout shipping adjustments or re-billing.
Most orders ship from our Texas headquarters near Dallas.

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.

Typical transit times after shipment

Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.

Made-to-order items (lead times)

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.

Need an exact freight quote for a large order?