Page 3 - Selecting Casters and Wheels
P. 3
SELECTING CASTERS & WHEELS
Load Weight & Wheel Size
The first consideration for caster selection is to determine the combined weight of the
equipment and maximum load on the equipment. Generally, the greater the weight, the larger
the wheel required for the caster. Larger wheels distribute weight and roll more easily over
floor obstructions.
To determine the load capacity for each caster, divide the
combined weight o f the equipment and maximum load by Environmental Factors
the number of casters to be used. This is the load that each
caster and wheel must support. Always select a caster and Often unusual operating
wheel that are rated for a capacity greater than the calculated conditions require selection of
load per caster. This allows for unusual conditions that could casters and wheels with special
change the performance of the caster. All P&H capacity features. Always take into
consideration special conditions
ratings are expressed using the maximum dynamic or rolling
load weight. that exist in the environment
where equipment is being used.
Wheel Choices
Extreme temperatures
As a general rule, hard tread wheels perform better on soft or require special bearing
lubricants or plain bore
smooth floors and soft tread wheels roll easier on hard or
bearings
rough floors including outdoor surfaces.
Rubber tread wheels wear
better in corrosive
When choosing a wheel type, take into consideration all
environments
special floor conditions – tracks, gutters, grates, sills, elevator
Wash down applications such
thresholds, seams and dock plates. The larger and softer the as hospitals, bakeries and
wheel, the greater the ability to roll over rails and similar food processing plants will
obstacles. benefit from using casters
with raceway grease seals
To protect floors from damage, choose softer cushion tread and zerk grease fittings.
wheels. TPR (thermoplastic rubber) offer low maintenance, Stainless steel casters will
easy maneuverability and are resistant to debris provide a longer lasting, rust
impregnation. free solution for frequent
wash down applications or
wet environments.
Rubber and pneumatic rubber wheels with the soft tread for
maximum shock absorption also provide quiet operation and
maximum floor protection.
Steel and Cast Iron wheels are not recommended for floor protection, but they are well suited
for industrial applications.
