Casement arm roller too thick to fit inside glide track

A contractor from Sewell NJ says:
May 21, 2021
45251 truth casement operator LH
The size of the roller is same diameter but not the thickness which is 3/16 versus 5/16
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Bob from SWISCO responded:
May 25, 2021

Thanks for posting. See our 39-366. This operator has that raised roller at the end of the straight arm, similar to your own. Look it over and see if you think this might be a better match for you. 
9-1/2" Single Arm Operator, SS Roller
9-1/2" Single Arm Operator, SS Roller
39-366
$30.99
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