Manual
When picking Win-Holt Equipment you should review not only the carts and racks
but the casters on the units. You may find you need a caster other than what is on
the rack currently. We can upgrade any cart or rack for your needs based on your
environment. We have included in this section not only all the casters we offer but
detailed information from Floor Surfaces, Operating Environments, to the weight ca-
pacities of the casters we offer. If we do not have the caster that is right for your en-
vironment in stock or on these pages we can source the right caster for your
equipment. Several things need to be considered when picking a caster. Over the
next few pages we will explain each area you need to consider when choosing a
caster.
Load Capacity - Load capacity can be described as the maximum rolling capacity
of the equipment based on what you will place on that equipment.
Load capacity per caster can be determined as follows:
(Cart Weight + Maximum Load Placed on Cart)
Load Capacity = --------------------------------------------------------------
Number of Casters on Cart
Example:
75 + 800 / 4 = 219 lbs per caster
We advise using your maximum load that might be used on the cart and not the av-
erage weight. The greater the weight the larger the wheel size should be to distrib-
ute the weight evenly. Always by a caster with a higher rating than the load
capacity formula. In our example of 219 lbs per caster you should go with a caster
of at least 250 lbs. rolling capacity.
Wheel Mounting-The majority of Win-Holt equipment uses a stem caster of some type or plate caster. When selecting
new wheels, for equipment please review the mounting type to select the appropriate caster.
Ease of Rolling-Many factors will determine how easy your product will roll from floor conditions and surfaces to the total
weight but what type of bearing your caster have will make a large difference in the ease of rolling.
We offer casters with
ball bearings, nylon bearings, and roller barings.
Plain Bearings / Nylon Bearings are use where light duty carts and equipment are used.
Ball Bearings roll easier and carry more weight than plain bearings.
Roller Bearings carry heavier load capacities than ball bearings.
Wheel Type Material - When protecting floors or rolling your carts across abrasive surfaces choose a softer caster. When
rolling your carts across smooth surfaces choose a harder caster. The larger the wheel the easier it will be to roll across
rougher surfaces and carrier greater loads.
WHEELS & CASTERS
PAGE
128
800.444.3595 I 516.921.0538 fax I www.winholt.com
Floor Surfaces Easy Reference Wheel Selection Guide Operating Conditions
Wheel Type
Capacity of each Temp Range
Durometer
Ratings
(lb) (kg) (Fahrenheit)
Polyurethane 150-1,000 68-454 -30° to +180° 95(±5)A
Solid Soft Rubber 75-400 34-181 -30° to +160° 75(±5)A
Solid Hard Rubber 100-500 45-227 -30° to +160° 75(±5)D
Polyolefin 100-850 45-385 -20° to +180° 65(±5)D
Mold-On Polyurethane 425-4,200 193-1,905 -30° to +180° 55(±5)D
Mold-On Rubber 200 / 1,700 91 / 771 -30° to +160° 75(±5)A
Phenolic 400 / 8,000 181 / 3,628 -45° to +250° 85(±5)D
Phenolic High Temp. 400 / 2,900 181 / 1,315 -45° to +475° 85(±5)D
Pneumatic 300-800 136 / 363 -20° to +160°
⎯
Semi-Pneumatic 150-450 68 / 204 -20° to +160°
⎯
Semi-Steel 200 / 3,000 91 / 1,361 -45° to +250°
⎯
How to choose a caster?
Plate
Caster
Terms
Swivel Radius
Tread
Width
This diagram represents a basic wheel as-
sembly. But this might vary from wheel to
wheel. Please consult the wheel specifica-
tions.
Wheel Terms
Retainer
Washer (2)
Spanner
Bushing
Cage Roller
Bearing
Wheel
Diameter