Balance BSI 2630(?)

Question

Hi

Believe I have a BSI 2630 per pics. The metal bar is 27" long (not including plastic ends). Look correct? If you need more pics let me know! Thank you

Bob · Accepted Answer

Thanks for posting. I believe you have either an S351-27 or S390-27. The only difference between these two balances is the depth of the bottom nylon shoe, or the 'heel-to-toe' measurement. See the illustration below. I believe the shoe on your old balance is damaged, so if possible use an undamaged version and compare to the image below to see which option matches what you need. In either case for a new stamp option choose 2630.

Comparison of the S351 and S390 balance shoes.