W B D WEIBIDA 6 Inch Heavy Duty Caster Set 5000lbs, Polyurethane Wheel with Aluminum Core, Double Ball Raceway Swivel Casters, Non-Marking & Maintenance-Free for Hospital, Laboratory & Industrial Use — Open-Box, 22% Off

【Ultra Heavy Load Capacity & Reinforced Construction】- Each 6-inch WBD WEIBIDA industrial caster supports up to 1250 lbs individually, and the 4-piece set reaches a total load capacity of 5000 lbs. Built with solid and sturdy structure, these casters stand up to frequent heavy load moving, deliver long service life and allow you to transport bulky goods effortlessly 【Maintenance-Free Design & Integrated Bonded Wheel Structure】- Outperforming traditional rubber-on-iron wheels, these industrial casters roll more smoothly and serve longer. The wheel tread adopts premium liquid-cast polyurethane, which is chemically bonded firmly to the aluminum core to avoid peeling and separation. The lightweight aluminum core never gets rusty and requires no daily maintenance 【High Strength-to-Weight Ratio & Premium Appearance】- This 6-inch caster features excellent strength-to-weight ratio, combining light weight and extreme durability. It keeps stable performance and longer service life even under continuous heavy loads. With sleek metallic texture, the aluminum core looks more elegant than cast iron wheels, ideal for industrial use and scenarios with high requirements on ergonomics and appearance 【Multi-Resistance & Non-Marking for Diverse Scenarios】- The polyurethane wheel features great abrasion resistance, oil resistance and chemical resistance. The non-marking design protects floors from scratches and stains. Widely applied in research laboratories, hospitals, bakeries and various industrial manufacturing facilities 【Double Ball Raceways & 360° Flexible Rotation】 - Equipped with double ball raceways, these braked swivel casters gain higher load capacity and better durability while reducing rolling friction. The 360° rotatable top plate allows free direction change with little effort, moving flexibly in all 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.