Crown Selection Procedures
If
you wish, you can use the Sizing
Software which will take your information and automatically
suggest the correct Crown Model
This will show
you how to Select the Correct Crown Drive for your application.
1. Determine
Your Preferred Input/Output Ratio. Standard ratios are 1:1 and
2:1. It is also possible to use a ratio of 1:2 by using shaft #2
as the input shaft.
2. Designate
Which Shafts Are To Be Input And Output Shafts.
This step is especially important to determine that no shaft will
turn faster than 2000 RPM. If shaft #2 in the 2:1 ratio models is
selected as the input shaft, it can turn at a maximum of 1000 RPM.
In the 1:1 ratio models it makes no difference. However, the choice
in either case will affect your mounting.
3. Choose
Drive Type.
Choose
from 2-way or 3-way or Counter Rotating configurations.
4.
Be Certain That The Designated Output Shaft Has A Torque Capacity
Greater Than Your Applications Load.
Click to see the
tables for two and three way
Click
to see the tables for Counter Rotating
Be sure to apply the service factors from the chart to the right.
5. Select
The Correct Model Number.
Click
to see dimensions for 2-Way
Click
to see dimensions for 3-Way
Click
to see dimensions for Counter Rotating
Note that units
with 3/8 inch shafts have flats and units with 1/2, 5/8, 3/4 and
1 inch shafts have standard keyways. Also note that 1 inch shaft
models are available in 3-way type only.
6. If modifications
of shafts and/or housings are required for your application,
send a drawing and a description of the application to the factory.
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