Traditional anti-friction bearing, best for manual applications where shock loading (but no side thrust) is prevalent.
These solid rubber wheels are molded of durable compounds designed for general purpose use. They are furnished with oiless sleeve bearings or straight roller bearings as listed below.
Ebonite (All Hard)-one-piece wheel of shatter-resistant rubber throughout. Nonmarking, non-sparking, easy oiling, will not develop -set- under static loads.
Flexonite (Soft Tread)-a softer rubber tread permanently molded to a hard rubber core. Recommended for light loads where noise is a factor or floors are rough, but capacity is more limited.