640 S190 Coil Balance Spring

Product Code: S190-640

Product Description
This series 190 coil balance spring is stamped # 6 or 640. Coil balances are also known as constant force window balances.
Good Idea!
Balances are sold individually, however, it is a good idea to replace both window balances at the same time. Pairing a new balance with an old one would cause the new balance to wear out faster.
Customer Questions & Answers
Discussion # Of Replies Last Post Date
Window constant balancerThis discussion includes image(s). 2 Sep 8, 2017
Windows component replacementThis discussion includes image(s). 2 Aug 23, 2017
Pivot Lock ShoeThis discussion includes image(s). 2 Jul 18, 2017
Constant force coil does not keep window up.This discussion includes image(s). 9 Jun 9, 2017
How to read the coil balance spring number (reading up to the hole - 6 or 9)?This discussion includes image(s). 2 Apr 20, 2017
CoilThis discussion includes image(s). 4 Feb 8, 2017
Window balance coil and shoe This discussion includes image(s). 6 Oct 18, 2016
Balance coilThis discussion includes image(s). 0 Sep 21, 2016
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