Balance assembly

Home Owner from Ontario, NY

Sep 14, 2024 1:49 pm

Looking for the correct part number(s) for balance assembly. I could not find part numbers on existing. See attached photos. Windows were install new in 2001.

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6 Replies

Home Owner from Ontario, NY

Sep 14, 2024 1:50 pm

This is a simonton window.

Bob from SWISCO

Sep 14, 2024 7:34 pm

Hello there. Simonton windows use a few different balance systems. This looks like a 15-199 Pivot Shoe, which works with either the Series 160 1/2" thick Coil Balances, or the Series 165 3/8" thick Coil Balances. You will need to remove your old system from the window and measure the thickness of the coil springs to determine which Series you need. Let me know if you have further questions about any of this hardware.

Home Owner from Ontario, NY

Sep 15, 2024 12:03 pm

Thank you very much for the quick response. I was able to remove the balance springs. See attached photo. I did not find a stamp on the spring for the part number. The spring is 3/8" wide. What size (lb) should I order? It is for as bottom window sash which measures 29 1/2" wide by 26 1/2" tall and has two coils on each side.

1 user uploaded image

Home Owner from Ontario, NY

Sep 15, 2024 12:10 pm

I think I figured it out but let me know if I am correct. The window weighs 15.6 LBS so I would need 4 LB springs.

Bob from SWISCO

Sep 15, 2024 2:40 pm

You got it! Thanks for all the information. You have a 15-199 Pivot Shoe. This will work with the 3/8" thick Series 165 springs. For a window sash that weighs 15.6 pounds, use (4) of the S165-4 4 pound springs, a pair for each side of the sash. This will equal 8 pounds of support on either side, for a total of 16 pounds of support--being within 1 pound of the actual sash weight works just fine. For new coil supports, see the 15-204 Dual Supports. Let me know if you have further questions!