Flange Units
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distance between
bolt hole centers
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Ultra-Class 2-bolt flange with
cast iron (FL) housing |
Flange units also support shaft, however they have been designed to
support shafts that are positioned at a 90º angle to the mounting
surface.
As with pillow blocks, certain critical dimensions are important
when selecting the proper flange unit for the application.
- Shaft diameter — As with the
pillow block, the shaft diameter is matched with the appropriate
corresponding bore dimensions of the bearing unit. If a properly
sized unit is selected, the bearing will easily slide onto the
shaft and into position, ready to be secured by the locking device.
- The distance between bolt hole centers
— The exact method used to measure this distance varies according
to the configuration of the housing. The methods for measuring
the distance between bolt hole centers will be discussed in greater
detail for each housing.
The shape of the housing is determined by the number of bolts used for mounting
the flange unit, the application requirements and the space available
on the machine for mounting. The most commonly used configurations
are listed below:
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