Roller wheel broken

A home owner from Edmonton, Alberta, Canada says:
My roller wheel is broken,on the glass, I can see:ANSI Z97.1-1984. N.K.G
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Bob from SWISCO responded:

Start by looking at our 10-058 Shower Door Roller kit. Look it over and see if you think this could work for you. 

SWISCO 10-058 Shower Door Roller and Bumper Kit
SWISCO 10-058 Shower Door Roller and Bumper Kit
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How to install the 10-058 shower door rollers
How to install the 10-058 shower door rollers
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