Phenolic resin wheels are filled with macerated fabric. This wheel provides quieter operation than steel or aluminum, provides superior floor protection, and resists hard impacts, most chemicals and steam. The standard color is black.
Temperature Range: -45ºF to +180ºF. If metal washers specified: -45ºF to +250ºF (Roller and Ball bearings only)
Hardness: 90(±5) Durometer Shore D scale