How to model retainer cage of ball bearing?

Here are a few steps and the uploaded model: Bearing cage demo
Open the model and look at each step to see how it was done.
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Step 1:
First create a ball and then an intersecting axis using the top and right planes
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Step 2:
Create a circular pattern of your balls around the new axis
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Step 3:
Sketch a band on your front plane
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Step 4:
Use mid-plane to extrude your cage band, but UNCHECK the "merge result" box
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Step 5:
Sketch a slot on your top plane and make a cut through only your band by selecting on the band as your cut body
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Step 6:
Make a circular pattern of the previous cut around the same axis using the same number as the balls you patterned
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Step 7:
This should complete your cage