HQ03XN02028S018 2-1/4" Air Cargo Caster w/ Toe Guard, 450 lb | CasterHQ

The CasterHQ HQ03XN02028S018 is a 2-1/4" x 1-3/8" nylon air cargo caster rated 450 lb per caster, with a 3-3/4" overall height, a 4-3/8" x 3.16" rectangular top plate, and an integral metal toe guard. It is a sealed, low-profile swivel caster built for cargo conveyor equipment, with double sealed precision ball bearings in both the wheel and the swivel section. It cross-references to manufacturer part numbers 03XN02028S018 and 03XN02028S001C. Ships in 3-5 business days from receipt of order. 450 lbCapacity per caster 2-1/4" x 1-3/8"Nylon wheel 3-3/4"Overall height 3-5 DaysLead time to ship Author: Jordan Wilson, President & Owner, CasterHQ · Spec source: Manufacturer catalog data · Last reviewed: September 25, 2026 HQ03XN02028S018 specifications Specification Value Cross-reference part numbers 03XN02028S018, 03XN02028S001C CasterHQ SKU HQ03XN02028S018 Model CasterHQ air cargo caster, toe guard model Caster type Swivel, rectangular top plate Wheel diameter 2-1/4" (58 mm) Tread width 1-3/8" (34 mm) Wheel material Shock resistant premium nylon Load capacity 450 lb per caster Overall (mounting) height 3-3/4" (96 mm) Wheel bearing Double sealed precision ball bearing Swivel section Sealed precision ball bearing with additional O-ring seal against contamination Top plate size 4-3/8" x 3.16" (111 mm x 80.3 mm) Bolt hole spacing 3-1/2" (88.9 mm) x 2-3/8" (60.45 mm) center to center Toe guard Integral formed metal toe guard Construction 1/8" formed steel Finish Yellow dichromate Thread guards Nylon Brake None Approximate weight 1-3/4 lb Replacement wheel 2-1/4" x 1-3/8" nylon, 5/16" bearing ID, 1.79" hub length. Order through CasterHQ. Warranty 3-year manufacturer warranty Lead time to ship 3-5 business days from receipt of order Where the HQ03XN02028S018 fits Air cargo conveyor and roller deck equipment ULD and pallet transfer beds in cargo terminals Cargo dolly and transporter deck rebuilds Ground support equipment MRO replacement Low-profile transfer tables needing 3-3/4" height Replacing legacy 03XN02028S001C casters one for one Engineer Tip: Jordan Wilson Before you order a rebuild quantity, check two numbers against your existing deck: the 3-3/4" overall height and the 3-1/2" x 2-3/8" bolt spacing. If both match, this is a drop-in swap for 03XN02028S001C with no plate or shim changes. If your drawing calls for more than 450 lb per caster, send it to us before you buy. That is a different caster, not a heavier-duty version of this one. What is the HQ03XN02028S018 used for? It is used in air cargo and cargo conveyor equipment, where a short, sealed swivel caster has to carry pallets and containers across a deck. The 3-3/4" overall height keeps deck profiles low, and the double sealed bearings plus the O-ring sealed swivel section keep out the dirt, de-icing residue, and moisture common on ramp and terminal equipment. What is the load capacity? 450 lb per caster. On a four-caster layout with even load distribution, that is 1,800 lb of total rated capacity. For uneven loads or impact at transfer points, size to the most heavily loaded caster, not the average. Does it have a brake option? No. This air cargo caster is offered without a brake. Conveyor and roller deck applications hold position with deck stops or locks, not caster brakes. How does it compare to the no-toe-guard version? The two are the same 2-1/4" x 1-3/8" nylon, 450 lb, 3-3/4" height caster on the same 4-3/8" x 3.16" plate. The difference is the toe guard: HQ03XN02028S018 includes the integral metal toe guard, and the no-toe-guard version (cross-reference 03XN02028S004C) does not. Ask us for pricing on that version. Choose the toe guard version where hands, feet, or cargo straps can reach the wheel. Does HQ03XN02028S018 replace 03XN02028S001C? Yes. Part 03XN02028S001C has been superseded by 03XN02028S018, and CasterHQ HQ03XN02028S018 is the direct replacement. If your maintenance records, BOM, or drawings list either number, order HQ03XN02028S018. Buying for a fleet rebuild or OEM program? Volume pricing applies on 150+ pieces, with a further break at 180+ pieces. Net 30 terms are available with an approved credit application, and tax-exempt and resale certificates are accepted. Send your quantity and ship-to and we will return a formal quote. Request a Volume Quote FAQs What is the overall height of the HQ03XN02028S018? 3-3/4" (96 mm) from the mounting surface to the floor. What size is the top plate and bolt pattern? The rectangular plate is 4-3/8" x 3.16" (111 mm x 80.3 mm), with bolt hole spacing of 3-1/2" x 2-3/8" center to center. What is the replacement wheel for this caster? A 2-1/4" x 1-3/8" nylon wheel with double sealed precision ball bearings, rated 450 lb. Replacement wheels are available through CasterHQ; request a quote with your quantity. What is the lead time? 3-5 business days to ship from receipt of order. Can I order on Net 30 terms? Yes, with an approved credit application. Credit card orders ship on the standard lead time while terms are set up. Related collections Industrial Casters Hub All Plate Casters Air Cargo Ball Transfer Units Inverted Aircraft Loading Caster