Taco Pro Fit BRG-C-100 Bearing Assembly. Taco's in-line circulator line Pro Fit is an efficient and cost effective replacement to Armstrong and Bell and Gossett's line of circulators. This bracket can replace the Bell and Gossett 2-1/2", LD3, HD3 and PR bearing assembly part number 189105, 189106, 118447. It also can replace the Armstrong bearing assemble for their S-45, S-46 and H-41 pump or part number 816027-002.