- B -

Brinelling

A type of mechanical failure used to describe a dent in metal such as what occurs when a shock load is applied to a bearing. Named after Johann A. Brinell, a Swedish engineer

British Imperial System

A system of measurement used in the United Kingdom.

British Thermal Unit

A measure of heat energy where one Btu is the amount of heat necessary to raise 1 pound on water 1 degree F.

Brittleness

The quality of a material that leads to fracture without appreciable deformation.

Brn

Brown.

Broach

A tool used for reshaping or resizing parts.

Brody

A controlled, rear-wheel skid often used on dirt tracks for fast cornering.

Bronze

A copper-rich, copper-tin alloy with or without small proportions of other elements such as zinc and phosphorus often used for bearings or bushings.

Bronze Guide

A valve guide made of bronze alloy.

Bronze Guide Liner

A thin valve guide, easy to install, but must be broached to stay in place.

Bronzewall

A type of thread-like, valve-guide repair insert that must be reamed to size after installation.

Browser

Short for web browser, a software application used to locate and display web pages.

Brush

A block of conducting material, such as carbon, held against an armature commutator or rotor slop ring to form a continuous electrical path.

Brush Guard

See grille guard.

Brush Holder

Adjustable arms for holding the commutator brushes of a generator against the commutator, feeding them forward to maintain proper contact as they wear and permitting them to be lifted from contact when necessary.

BS

Brake light switch or bleed solenoid

BSFC

An acronym for brake-specific fuel consumption.

BTC

An acronym for before top center.

BTDC

An acronym for before top dead center.

BTS

Battery temperature sensor