The Pros and Cons of Different Types of Caster Wheels
Polyurethane Caster Wheels:
Polyurethane wheels are known for their excellent load-bearing capacity and durability. They offer smooth rolling and superior floor protection, making them ideal for a variety of applications.
Pros: Exceptional roll-ability and floor protection, high load capacity, better ergonomics compared to rubber wheels, resistant to chemicals and oils, non-marking, customizable for specific needs like ergonomics, debris rejection, or load capacity.
Cons: Can be more expensive, potential for tread separation in wet environments, and temperature limitations compared to metal wheels.
Phenolic Caster Wheels:
Phenolic wheels are hard, non-marking, and designed for heavy-duty use. Made from cotton fabric impregnated with phenolic resin, these wheels are a cost-effective option for industrial applications. However, they can be noisy, somewhat brittle, and prone to moisture absorption if the outer shell is damaged.
Pros: Inexpensive, capable of handling heavy loads, impact-resistant, ideal for relatively stationary heavy items.
Cons: Noisy due to their hardness, prone to debris buildup, poor performance on uneven surfaces, and vulnerable to water absorption if the shell is compromised.
Metal Caster Wheels:
Metal wheels, including options like cast iron, ductile iron, and forged steel, are popular for their strength and durability. Cast iron wheels, in particular, are widely used for their high tensile strength and cost-effectiveness in high-capacity applications. These wheels are made from hot cast iron and painted for protection. Despite their strength, they can be noisy and may be brittle.
Pros: High load capacity, durable, resistant to chemicals and oils, capable of withstanding high temperatures, cost-effective for heavy-duty applications.
Cons: Noisy when rolling, prone to debris buildup, and less effective on uneven surfaces.