Terminology we use
With such a wide range of rollers and with so many different ways of specifying them, we would urge you to look at the terminology that we use so that you get the product that you want.
Gravity conveyor rollers or wheels in tracks
P = pitch, r = inside radius, W = inside frame, R = centreline radius (R = r + (W/2))
Gravity conveyor rollers
| A | W | H | F | X | T |
| Axle length | Inside frames | Over hubs | Face length | Face to face | Tube length |
| Spindle length | Between brackets | Over hub projections | Roller length | Roller length | Pipe length |
| Shaft length | Gap | End to end | Over bearing faces | ||
| Overall length | Face dimension | Overall length | Face length | ||
| Between flanges | Roller length | ||||
| This table shows commonly used nomenclature and the dimensions to which they relate. | |||||
| Please avoid the phrases in blue italics as they are too prone to misunderstandings. | |||||