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4" x 2" Polyurethane Rigid Maintenance Free Caster – 900 lb | CasterHQ

Wheel
4" x 2"
Capacity
900 lbs
Overall Height
5-1/8"
Plate Size
4-1/2" x 6-1/4"
In Stock · Ships 1-2 Business Days
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Business Purchasing
  • Purchase orders accepted for approved accounts
  • Net 30 terms for qualified businesses
  • ACH, credit card, and tax-exempt ordering
  • Bulk and contract pricing on fleet quantities
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Product Overview
At a glance
Load capacity900 lbs
Wheel4" × 2" Polyurethane
MountPlate — 4-1/2" x 6-1/4"
TypeRigid
Overall height5-1/8"
Temperature-40°F to 180°F

4" x 2" Maintenance Free Rigid Caster - 900 lbs Capacity


CasterHQ Maintenance Free Ergo Extreme Series industrial casters feature an ultra quiet design that eliminates swivel chatter for silent operation. It is designed utilizing a sealed tapered bearing in the upper raceway and hardened chrome steel ball bearings in the lower raceway with zero slack tolerances for continuous towing caster applications, demanding impact applications and durability due to the heavy duty construction.


Our Ergo Extreme (EE) Series is 100% maintenance free and requires zero lubrication. It offers up to a 2,500 pound capacity. The Yellow Zinc Chromate finish is standard for ultimate extended corrosion resistance as well to show its superiority allowing it to stand out for easier differentiation.


Key Features
  • Tapered Bearings in Upper Raceway to handle Axial Loads while operating at high speeds
  • Ball Thrust Bearings in Lower Raceway to handle combined heavy radial and thrust loads
  • Extended Swivel Radius reduces the effort to start and swivel by half the force of a standard caster
  • 3/8" Thick top plate with legs formed from 5/16" steel
  • Designed for Ultimate solution of traditional casters with kingpin being loosened from lateral force
  • Yellow Zinc pated to distribguish its superiority
  • Zero Friction Swivel Design to provde the best Push/Pull force in the Caster Industry
Ordering & Shipping Information

Order processing

In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.

Shipping method

Smaller orders ship parcel (UPS/FedEx Ground). Heavy or bulk quantities consolidate to LTL freight. The method and final cost are shown before payment, so there are no post-checkout adjustments.

Payment & procurement terms

Purchase orders — accepted from approved accounts
Net 30 terms — available on approved credit
ACH & all major cards — Visa, MC, Amex, Discover
Tax-exempt — submit your resale/exemption certificate

New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.

Volume pricing & quotes

Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.

Returns & warranty

Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.

Typical transit times after shipment

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

Need an exact freight quote or blanket PO?

For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.

Additional Information
High Performance Maintenance Free Caster Series

Frequently Asked Questions

What is the load capacity of this caster?+

This 4" x 2" Polyurethane Rigid Maintenance Free Caster – 900 lb is rated to 900 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.

What wheel does this caster use?+

This caster runs a Polyurethane wheel with a 2" tread width. Polyurethane protects finished floors, rolls quietly, and resists most chemicals while carrying heavy loads.

What plate size and bolt pattern does it use?+

This caster uses a top-plate mount with a 4-1/2" x 6-1/4" plate and a 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.

Is this a swivel or rigid caster, and how does the brake work?+

This is a Rigid caster. Rigid casters track straight for directional stability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.

What temperature range can this caster handle?+

Rated for -40°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).

What floors and applications is it best for?+

The Polyurethane wheel performs best on smooth to semi-smooth floors including sealed concrete, tile, and epoxy. For non-marking or clean-environment needs, ask us about matching tread options.

What is the overall mounted height?+

The overall height (floor to top of plate or stem) is 5-1/8". Account for it when checking equipment clearance, dock height, and ergonomic working height.

How do I order, and what are the terms?+

We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).

4
4" x 2" Polyurethane Rigid Maintenance Free Caster – 900 lb | CasterHQ

$73.00

Technical Specifications

Dimensions & Mounting
Wheel Diameter 4"
Wheel Tread Width 2"
Overall Height 5-1/8"
Plate Size 4-1/2" x 6-1/4"
Bolt Hole Pattern 2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Mount Style Plate
Rig Type Rigid
Load & Performance
Wheel Capacity 900 lbs
Temp Range -40°F to 180°F
Brake Type No Brake
Materials & Finish
Wheel Material Polyurethane
Frame Material Zinc Plated Steel
Reference Dimensions
5-1/8" OVERALL HEIGHT 4" x 2" WHEEL DIA x W 4-1/2" x 6-1/4" PLATE
Overall Height5-1/8"
Wheel4" x 2"
Top Plate4-1/2" x 6-1/4"
Bolt Pattern2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Wheel MaterialPolyurethane
Illustrative caster profile drawn to this item's proportions — dimensions are manufacturer specification values. Confirm against the technical table before ordering.
Will This Caster Handle Your Load?
Enter your loaded weight — we derate to 3 effective casters on a 4-caster rig, per industry practice for uneven floors.
Rated capacity: 900 lbs per caster. For dynamic loads, towing, or debris-strewn floors, apply additional safety factor · full engineering tools →
Fitment & Interchange
MountPlate
Plate Size4-1/2" x 6-1/4"
Bolt Pattern2-7/16" x 4-15/16" slotted to 3-3/8" x 5-1/4"
Rig TypeRigid
BrakeNo Brake
Slotted holes — fits multiple bolt patterns, ideal for retrofits
Replacing an existing caster? Match the bolt pattern first, then wheel size · more 4-1/2" x 6-1/4" plate casters →
Documentation
Spec sheet (PDF) 30-day pricing honored Caster selection guide Caster University Fleet & contract pricing Net 30 available
30-day returns · manufacturer warranty · spec support: 844-439-4335 (Mon–Fri 8–5 CST)
Customers
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