The windows use a 3/8 spiral balance 24in long with blue tips,and a sash weight of 15lbs, The pivot shoe measurements is 2" tall 1-1/4" wide and 9/16" thick, which matches the description of part# 15-121, however i read a post stating that part would not work with the 900 series spiral balance.
My question is, will the 15-118 {which has the same measurements} or the 15-046 {with only a slight different in thickness} work with the 900 series spiral balance? As i would prefer if possible, to have the center notch in the pivot shoe to keep the alignment straight with the balance and window channel.
please confirm the the correct replacement part numbers to match my needs that work in conjunction with each other. Thank You.
Paul from SWISCO responded:
April 10, 2018
Looking at your photo and reviewing all the information you provided, it seems you have an Acorn window that may be able to use our 15-015 pivot shoe along with the Series 900 spiral balance. The thickness of the pivot shoe is 17/32". You may want to confirm your pivot shoe dimensions just to be sure. |
Paul from SWISCO responded:
April 13, 2018
Personally I have never experienced the angle slot to be an issue when it comes to installing a tilt balance. I actually prefer the slot towards the outside. As for using the 15-046 pivot shoe, you may have enough play in the track for it and you are also able to use the center slot. |