Most often, the biggest source of concern when it comes to roller replacement is getting the proper measurements. Many roller replacement inquirers either don't know what to measure, or the best way to measure, or both. To assist you in taking roller measurements, we will show you: (1) the essential measurements for roller replacement, and (2) the most accurate method for roller replacement measuring.
With any roller replacement request, you should take five critical measurements. In order to assure an accurate fit, you must provide the following measurements:
If you are looking for a chain driven roller, there are additional measurements that you need to be aware of. Below is a diagram illustrating the differences when measuring a chain driven roller.
The key dimensions of a chain driven roller that you must provide are:
Another type of roller that requires alterations in measurements is the dimpled roller. Dimpled rollers (also known as line shaft rollers) have an indentation in the tube of the roller. A band is then wrapped in the groove of the roller and connected to a powered line shaft.
Important dimpled roller measurements to be sure to provide include:
Tapered rollers have two different tube diameters. Therefore, be certain to provide both tube diameters when placing your inquiry. Tapered rollers are most commonly used in the curved sections of a conveyor line.
Critical measurements for a tapered roller include:
Tapered dimpled rollers have two tube diameters and an indentation in the tube of the roller. A band is wrapped in the groove of the roller and connected to a powered line shaft. This roller is also found in the curved sections of a conveyor bed.
Vital tapered dimpled roller measurements to have when inquiring include:
When using the roller inquiry form, you must place the sprocket location dimensions, the dimple location dimensions, or the tapered dimensions in the box labeled "other considerations". Failure to do so will result in a delay in getting an accurate price quote.
Now that the types of measurements have been identified, we will illustrate how to best take those measurements. When taking any roller measurement, you will need two items: a tape measure and a flat surface; like a desk or a door frame.
When taking the mesaurements for shaft length, bearing-to-bearing length, and tube length; place the roller along the flat surface and slide the tape measure to the appropriate starting place for each measurement.
For the diameter and shaft dimensions, turn the roller to look at the end. Measure the diameter of the roller tube. Finally, measure the axel. If the axel is round, simply measure across the face of the axel. If the axel is hex, you must measure across the face where the edges are parallel.
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