Caster Wheel Selection Chart
Characteristics, Features & Benefits

Green Ball  Good
Yellow Ball Possible – Call US
Red Ball     Not RecommendedIf you have any doubt as to which wheel or caster is the proper choice for your application contact us for a recommendation.
Quiet Operation
Please Read ALL Notes Below
SymbolsWheel TypeNote 2Note 3Note 4Note 5Note 6Note 7
RSExtra Soft Gray Rubber50ALow
RFRDGray Soft Rubber60-80ALow
CBSuper Cushion Rubber60-70ALow
MRBlack Rubber on Iron65-75ALow
PRPremium Rubber65-70AMed
SESelf-Energizing Rubber65-68AMed
Polyurethane on Polyolefin90-95AMed
UGPolyurethane on Glass Filled Nylon95AHigh
PAPolyurethane on Aluminimum95AHigh
PYPYRPYCPolyurethane on Iron95AHigh
PYHHigh Capacity Poly on Iron60DHigh
PHDPolyurethane on Ductile Steel60-70DHigh
APSolid All-Polyurethane60DMed
PBPWPolyolefin ( Industrial Plastic )65DMed
RNHard Rubber75DMed
TMTHPhenolic ( Canvas )85DHigh
NPHigh Temperature Nylon85DMed
CLVLGrey Iron ( Semi-Steel )Med
DSVSDuctile SteelHigh
FS-FHForged SteelHigh
1.  This chart is intended only as a general comparison and NOT as a recommendation for any particular wheel on a specific floor surface.
2.  On smooth floors with NO obstructions.
3.  Some noise is created by the virbration of the swivel bearing when a swivel caster is rolling or turning.
4.  The softer the wheel material, the more resilient it is but the risk of a flat spot developing is higher if left parked for a prolonged period with a load greater than 50% of the wheel capacity.
5.  Soft rubber tires are the most floor protective wheel material. Chair casters with Polyurethane tires are safe to use on hard floor surfaces such as hardwood, ceramic tile, concrete floors and plastic mats. They are NOT recommended for use on soft wood floors, vinyl or linoleum. For Industrial applications, Polyurethane is often described by others as floor protective. It is non-marking and non-marring; however, a hard polyurethane may affect some floor surfaces over time.
6.  Never select on the basis of capacity alone.
7.  Intermittent contact at room temperatire only, less than 10% chemical concentration.
8.  Yellow balls suggest the wheel may or may not perform well or be to your satisfaction on your floor surface.
CALL US for a suggestion based on your application.