Whenever several load cells (Bending and Shear Beam type load cells in particular) are built into a scale or platform, some flexibility must be introduced into the mechanical design to allow for expansion (due to temperature) and the bending and twisting of the frames under load. If not, forces will be created between the individual load cells which could cause significant measurement errors. Typically, to overcome this, expensive ball & cup mechanism or lever/knife edges have traditionally been used.
A simple, more cost effect alternative is to use a type of elastomer (rubber) bearing. An elastomer bearing typically consists of two metal plates which are held together by layer of vulcanised neoprene rubber. The SF-355 is a type of elastomer bearing.
For standard platform type applications, the rubber/metal foot SF-355 can be used in conjunction with the 355 load cell. The load cell is mounted on the underside of the platform with the loading end (Live end) facing down. The foot is bolted into the Live end. When the platform sits on the floor the load is transferred though the foot into the load cell.
Other options include a base kit for the model 355 (BK-355)