Categories Starting with 'B' (Page #5)

Bronze check valves provide back flow prevention and are most often used in fire protection, the petro-chemical processing industry, and water and sewage treatment plants. They are similar in application to brass check valves.

Back-Up Pads are usually a rubber or composition type material to which an abrasive disc is attached. The back-up pad supports the disc during the grinding operation and is normally the same diameter or slightly smaller than the disc.

A boring bar, also called a cuffer bar, is a combination tool holder and shank.

Beryllium-Copper is an alloy of copper and 2-3% beryllium with optionally fractional percentages of nickel or cobalt. Alloys of this series show remarkable age-hardening properties and an ultimate hardness of about 400 Brinell (Rockwell C43). Because of such hardness and good electrical conductivity, this alloy is used in electrical switches, springs, etc.