Live Shaft
Aluminum Idlers
When a steel live shaft idler isn't light enough, consider aluminum.
Nominal diameters of 3", 4", 5" and 6" are available
with face lengths available as needed. Wall thicknesses are already
specified to fit a wide range of applications. You determine the
journal configuration, roll diameter and face length needed to meet
your application. Live Shaft Aluminum Idlers are often ideal when
a light weight roll is needed and the web or the environment challenges
roll integrity or performance.
Application Advantages
- High Loads
Self-aligning pillow blocks and flange bearings used to mount
live shaft idlers are capable of handling higher loads than comparable
dead shaft idlers using rigid bearings.
- Elevated
Temperature
(Any idler intended for use in elevated temperatures must have
proper venting to avoid explosion. Be sure you identify such applications
upon ordering). Webex Aluminum Life Shaft Idlers can handle substantially
elevated temperatures with proper venting. This makes Life Shafts
ideal in ovens where an elevated temperature or solvent atmosphere
would quickly destroy dead shaft roll bearings.
- Harsh
Environments
By positioning the roller bearings out of the immediate web path,
exposure to process contaminates is minimized. That's why Life
Shaft rolls are often ideal in applications where chemicals, dust
or vapors commonly destroy dead shaft roll bearings.

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