W B D WEIBIDA 5 Inch Heavy Duty Casters Set of 4, Industrial Grade Casters Wheels with Brake 4000 LBS, Maintenance-Free Polyurethane on Aluminum Wheels, Plate Swivel Casters Wheels for Cart, Machine

【Extra Heavy Duty Casters】- Built for extreme heavy-duty handling, each 5-inch WBD WEIBIDA industrial caster supports up to 1000 lbs of single-wheel load, delivering a maximum total capacity of 4000 lbs for a 4-piece set. The robust structural design ensures outstanding sturdiness, prevents deformation under heavy loads, and guarantees a long service life for frequent heavy cargo movement. 【Maintenance-Free Casters】-Different from traditional rubber-on-iron wheels, these upgraded industrial casters adopt a premium liquid-cast polyurethane tread chemically bonded to the aluminum core, effectively solving common peeling and debonding problems. The lightweight aluminum wheel core features rust-proof performance, requires zero daily maintenance, and offers smoother rolling and longer service life than conventional cast iron casters. 【Ergonomic Polyurethane on Aluminum Casters】- Featuring a high-strength lightweight aluminum core structure, these 5-inch casters achieve an excellent strength-to-weight balance. They maintain stable load-bearing performance and extended durability under continuous heavy use. Compared with ordinary cast iron wheels, the metallic aluminum finish provides a more delicate and modern look, perfectly fitting industrial and ergonomic-focused application scenarios 【Wide Application】- The high-quality polyurethane wheel boasts outstanding abrasion resistance, oil resistance and chemical resistance. Its non-marking design protects floors from scratches and stains. These hygienic, durable casters are widely applicable for strict environment scenarios, including research laboratories, hospitals, bakeries and various industrial manufacturing facilities 【Double Ball Raceways】Equipped with upgraded double ball raceways, the brake-equipped top plate swivel casters greatly reduce rolling friction, improving load stability and overall durability. The 360° full-range rotating top plate allows free direction switching with minimal force, enabling flexible and effortless movement even in narrow working spaces

Polyurethane on Aluminum Wheels are designed to roll easier and last longer than rubber on iron wheels. The polyurethane wheel tread is made out of high quality liquid cast polyurethane that is chemically bonded to the aluminum core to prevent any thread de-bonding.

The aluminum wheel core is lighter weight than a cast iron wheel core and it will not rust. However, the aluminum wheel core can corrode when exposed to certain cleaners and solvents so it is not highly recommended in heavy wash down environments. This is a light-weight and ultra-durable wheel that has a very high strength to weight ratio.

It is designed to have an extended lifespan under heavy loads. The aluminum wheel core has a strong metallic look which can make it more aesthetically pleasing than cast-iron core wheels. Polyurethane on Aluminum wheels come in both flat tread and crowned tread versions giving you the flexibility when using these in industrial applications and applications needing more of an ergonomic-specific design.

Polyurethane on Aluminum Wheels offer abrasion resistance, oil, and chemical resistance and are non-marking helping you protect your floors. These wheels are very popular in applications such as Research Laboratories, Hospitals, Bakeries and many Industrial Manufacturing facilities.