Can I measure a roller brush while it’s still installed?

You can get the face length, approximate OD, and mounting space while it’s in the machine. Shaft dimensions, bore details, and end configurations usually require removing it. If you can’t stop the line, take photos and rough measurements now, then confirm the rest during planned maintenance.

What’s the difference between face length and overall length?

Face length is only the bristled section of the roller. Overall length is the entire assembly, from one shaft end to the other. You need both, because a brush can have the right face length and still not fit if the shafts or end fittings are wrong.

How do I measure the OD of a worn brush?

Measure at several points along the face and treat the numbers as a reference only. Wear changes the profile, so don’t order to that size. Check the clearance in the machine, or tell us the original spec, and choose the OD based on the contact you want.

What tolerance should I use for roller brush dimensions?

It depends on the application and the machine design. Mounting dimensions, bearing journals, and bores usually need tighter control than the bristle OD. Share the acceptable clearance or any existing drawing tolerances whenever you can, especially for OEM equipment and high-speed rotating assemblies.

Can a damaged brush be used as a sample?

Yes. A damaged or worn brush is often very helpful because it shows the core construction, fill pattern, and end details. Pair it with your machine measurements and a short note on how it failed. The goal might be to reproduce the brush, or to improve the material, trim, density, or mounting design.

Need a roller brush made to fit?

Accurate measurements are where it starts. The right roller brush is the one that keeps your line running with the contact, durability, and fit your operation needs. Request a custom roller brush quote with your dimensions, material, and application, and we’ll take it from there.