balances and shoes needed

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Home Owner from Battle Creek, MI

Oct 4, 2025 1:07 pm

No markings other than the what is included in the pictures.

4 user uploaded images

5 Replies

Lauren from SWISCO

Oct 9, 2025 12:06 pm

Hello, thank you for posting,

Please review the style of the 15-177 pivot shoe that is compatible with the Series 152 coil springs. Compare the dimensions below to confirm a good fit!

Also see the 15-143 bushing, 15-144 bushing cap and 15-145 support barrel. To determine the correct spring strength for your window, we will need to know the weight of the window sash. The sash will need to be removed and placed on a bathroom scale. Thank you!

Alternate image for 15-177

Home Owner from Battle Creek, MI

Oct 19, 2025 8:57 am

What is the window sash? Is that the spring? I tried putting that on the bathroom scale and it wouldn't weight it. I'm assuming its too light.

Home Owner from Battle Creek, MI

Oct 19, 2025 9:10 am

Sash weighs 15.4 pounds

Lauren from SWISCO

Oct 20, 2025 8:15 am

Thank you,

The sash is the moveable window frame that the coil balances support to stay up. If it weighs 15.4 pounds, you can use (1) S152-8 coil on each side of the window. Let us know if you have any additional questions!