LP Wheels have a thin rubber tread vulcanized to a semi-steel for greater capacity while retaining the ease of rollability. Low Profile wheels offer the advantages of floor protection and noise reduction, yet increased load capacity.
Temperature rage -40 to +160 degrees F
Durometer 65 (+/-5) Shore A
Zerk grease fitting in hub
For plastic thrust washers use "TW" suffix; ex. 620LP64TW
Metal retaining washers, metal thrust washers, or metal bearings