Wheel specifications
![Wheel dimensions](http://static.cisco-eagle.com/images/category/Casters/wheel-size-diagrams/wheel-dimensions.jpg)
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More information on wheel specification and sizing. If you don't see the exact wheel you need, contact us. Our caster specialists will help you get it right.
Straight roller bearings
![outer race and inner bushings on straight roller bearings](https://www.cisco-eagle.com/storage/casters/images/StraightRollerBearing.jpg)
These phenolic wheels feature straight roller bearings, which consist of a cage-type roller assembly and a split outer race. These bearings turn on hardened and ground spanner bushings which provide a long wearing precision inner race. Press fit combination metal retainer/thrust washers hold the bearings in place. Straight roller bearings have a high radial capacity, but minimal side thrusting load rating.