985 Series Coil Balance
985 Centurion Constant Force Balance has a large 3/4" interlocking spring and carrier system.
The extra wide 3/4" coils have a 40 inch travel, compared to the typical 35 inch.
The 1-1/4" x 3/4" brake shoe has a Zinc Cam with wire spring to secure window sash when tilted in for cleaning or service.
Typically used for heavy duty vinyl windows where a larger coil and balance is needed. AAMA 902 Certified
Constant Force Balances are available in Single, Tandem, Triple and Quad units