I believe this is Truth hardware

A contractor from Aspen CO says:
The length of the track on the wind is 13 3/4" the width of the bronze /gray opener is 5 5/8" Reason for this request is the wheel at the end of the opener keeps sliding off the track on the window at the mid point. The operator is loose / not sure if longer screws will stop this or if a new operator is necessary. Thanks
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Emily from SWISCO responded:

Hi there!

Start by taking a look at our 39-022 and 39-023 operators. Carefully compare our dimensions to yours and see if this matches what you need. If the dimensions differ in any way please tell us exactly how.

Dimensions for 39-022
Detail view of 39-022
Anatomy of a casement window
Anatomy of a casement window
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