SWISCO - The Replacement Hardware Authority

spiral balance cycles before failure

A professional from Kentucky says:
What is the number of cycles a balance is intended to handle before failure.
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Paul Sr. from SWISCO responded:
The life expectancy of the S400 spiral balance is 5 to 10 years under normal use. Several factors determine the life expectancy such as having the correct strength balance for the sash weight, usage, and window sash friction.
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