Expert: Michael Radi - 5/20/2010

Question
I am in need of a new Howard Miller Clock pendulum suspension spring and I was on their website and there are 2 different kinds. I was wondering which one I need. I have two different numbers and I don't know which one is the model number so I will give you both.

610-158
610-156

Answer
Howard Miller did not make the clock movement. It was made in Germany. I'll tell you the most common springs. If this does not look right you can give me the numbers stamped on the back of the movement.
The movement was most likely made by Hermle. There are 3 different springs. I hope you have the old one for measuring purposes.
SS-0060 is used on the smaller movements. it is 5/16" wide and 11/16" long.
There are larger springs for the larger movements. Both are 7/16" wide and 1" long. SS-303Z is for clocks with a brass lyre style pendulum.
Ss-393Z is for clocks with a wood stick pendulum.
Here is a link to our webpage where you can see them and purchase them if you would like:
http://www.norkro.com/webpages/sspage3.htm
They are the third and fourth photos down from the top, on the left side.
Thanks,
Michael
www.norkro.com
clock parts and repair