Opens left. Arm seems to measure 8" from the bend to the opposite end. Screw holes seem to measure 4-3/4" for the outer holes and 4" for the inner holes. (I'm not great at measuring.) This is to replace a crank on a steel-frame "architectural" (?) window, it has multiple small panes, it's probably from the 1940's. I do not see any markings, names or numbers.
Thank you.
casement window crank
Home Owner from Upstate New York
Aug 19, 2021 4:47 pm
2 user uploaded images
4 Replies
Home Owner from Upstate New York
Aug 24, 2021 12:24 pm
The 4-1/8 on center looks correct; however, from gear center to arm button is only 8" or possibly 8-1/4".
I'm confused about this because we've previously purchased replacements for these casement cranks from you and I see in my archive they were 9" arms. But this one definitely measures 8-8-1/4" not 9".
I'm confused about this because we've previously purchased replacements for these casement cranks from you and I see in my archive they were 9" arms. But this one definitely measures 8-8-1/4" not 9".
Dave Sr. from SWISCO
Aug 25, 2021 8:41 am
At one time operators were made with a 8-1/2" long arm. However it seems that now the norm is 9". Check your casement window. See if it is wide enough to accept the 9" long arm. Take the measurement from the center of the operator like they show on our website. Also, looking at your photos it appears that you have 4 mounting holes. Check the difference in the mounting holes between the 39-002 and the 39-353 to see which one matches up to the mounting holes in your operator.
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