I believe I have this shoe based on the specs: The dimensions match as well as the shape and color.
And I believe I need this Series 152 coil but I'm not sure what weight since mine has a letter E on it: How do I determine the weight? Is it the sash weight divided by 2?
And I'm pretty sure this is the pivot bar I need: the 26-352. Mine is broken and I don't have the other half. I can't tell on the spec page if the 1 5/16" dimension is from the round head or the oval head that sticks out on top. My pivot bar is 1 5/16 from the round head to the center of the hole (1 3/8" from the oval part). Again, mine has a 5 on it.
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Bob from SWISCO responded:
February 27, 2019
Thanks for posting, and thanks for your thorough information. I agree with your assessments. Looks like you have our 15-175 Pivot Shoe, which is compatible with our Series 152 Coil Springs. It appears whoever installed the ones you're looking to replace simply used letters to denote the spring weight rather than numbers. The 'E' on your coil springs is equivalent to 5, so see our S152-5, which is meant to support 5 lbs of weight apiece. To answer your question, to know what spring weights to choose in the event you didn't have stamps on the coils, you'd need to have an equal amount of support on either side of the window sash, equal overall to the total sash weight. So if your window sash weighed 20 lbs, you'd want (2) of the S152-2 on either side of the sash. If you need new supports for the coil springs, see our 15-143 Coil Bushing, the 15-145 Coil Support Barrel, and the 15-144 Coil Bushing Cap. As far as your pivot bar goes, the distance is from the very tip of the pivot bar (or the oval head) to the center of the first mounting hole, so if that is 1-15/16" for you, then I also agree that 26-352 makes sense. |
