Single Wheels

In general, tread hardness should be lower than the floor surface hardness to avoid damaging floors. Reference the material comparison below when making your selection.

To calculate the load capacity for each single wheel, you must know the equipment self-weight, maximum payload, and the total number of wheels.

Generally, larger diameters are easier to push, offer higher load capacity, and better protect floors from damage. Diameter selection should consider the load weight and the starting force required.

Rolling Resistance Factors

Lower rolling resistance is achieved with:

• Larger wheel diameter
• Harder tread hardness
• Better tread rebound resilience
• Ball bearings (vs. plain bearings)
• Smoother floor surfaces

Swivel Resistance Factors (for casters)

Lower swivel resistance is achieved with:

• Harder tread hardness
• Larger tread crown radius
• Greater offset distance (kingpin to wheel center)

Select single wheels based on your operating environment: floor surface condition, obstacles, residue (metal chips, grease), temperature (high, ambient, or low), and required load capacity.