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Roller Manual

From Omni Metalcraft Corp.
 

 

The distance between the side frames of a conveyor is the "Between Frame" dimension or "BF". The length of the roller from bearing tip to bearing tip is the "Overall Cone" or "OAC". The OAC is 1/8" shorter than the BF for rollers up to 3.5" diameter. For rollers over 3.5" diameter the OAC is 3/16" shorter than the BF.

Tube length is not an accurate way to measure the length of a roller because it is dependent on how far the bearings protrude from the tube and therefore changes with different bearings.

* Tubes are specified by the Outer Diameter (OD) and the thickness of the tube wall.
* The most common roller tube sizes are 1.9" OD x 16 ga. and 2.5" OD x 11 ga.
* Omni offers tube diameter sizes ranging from 1" to 8".
* Omni offers tubes made from these materials:
- Mild (low-carbon) Steel
- Galvanized Steel
- Stainless Steel
- Aluminum
- PVC
- Industrial Steel Pipe
* Steel tubes can be heat treated which increases the surface hardness and makes the tube more resistant to abrasions and small impacts.

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Topics of Interest
The distance between the side frames of a conveyor is the "Between Frame" dimension or "BF". The BF dimension allows 1/16 in. clearance between the extension on the bearing and the side frame at each... (Read More)
7.8 Steel tubing Steel tubing is used in hydraulic systems when rigid lines are required. They are easier to assemble and don't require welding in order to achieve leak-proof connections. Seamless... (Read More)
Hollow roller bearings are single-row or double-row radial bearings with an inner ring, an outer ring, and hollow or thin-wall rollers. The thin wall in the rollers allow the bearings to be preloaded,... (Read More)
Set the roller chocks under the roller tube, close to the ends. Allow the ends of the roller to overhang the chocks. If the roller has sprockets, allow the sprockets to overhang the chocks as well. (Read More)
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