What type of bearing is in my caster?

Bearings make up an important part of the caster wheel. In general, manual applications and walking speeds use roller bearings. High speed applications require precision ball bearings, which are typically maintenance free. For abusive applications such as side-impact loading and heavy loads, tapered bearings are used.

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Types of bearings in caster wheels (0:00 - 0:58)
Roller bearing (0:04)
Three separate pieces: outer sleeve, rollers, inner sleeve (0:05)
Grease reduces friction (0:14)
Quote: "The first bearing that I'm going to discuss here is the one on my far right this is what we refer to as a roller bearing comes apart into three separate pieces..." (0:04)
Precision ball bearing (0:20)
One-piece design (0:22)
Maintenance-free (0:23)
Quote: "The next most common uh bearing that we have here is going to be this little guy that's our Precision ball bearing not to be confused with a Circle circular round bearing that most people would probably think of when you hear the term ball bearing..." (0:20)
Taper bearing (0:38)
Two separate pieces: cone and cup (0:39)
Grease reduces friction (0:42)
Quote: "The third and final bearing that we have here out of the most common bearings used in Caster Concepts Wheels is going to be what we call a taper bearing it comes apart into two separate pieces..." (0:38)