TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

The portion of the frame that contains the crankset bearing, called the bottom bracket.  6, record 1, English, - bottom%20bracket%20shell

Record number: 1, Textual support number: 1 OBS

Although the shell or hanger holds the bottom bracket, the term "bottom bracket" is sometimes used in reference to this part of the frame.  7, record 1, English, - bottom%20bracket%20shell

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Raccord qui joint le tube diagonal, le tube de selle, et les fourches arrière inférieures. (Entretien-Réparation, 1985).  3, record 1, French, - bo%C3%AEte%20de%20p%C3%A9dalier

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 DEF

The axle which passes through the bottom bracket of the bicycle frame to which the chainwheels and cranks are attached.  6, record 2, English, - spindle

Record number: 2, Textual support number: 1 CONT

Inside the bottom bracket is an assembly of bearing and a spindle that rotates. Attached on either end of the spindle are the crank arms, and at the end of each crank arm is a pedal.  7, record 2, English, - spindle

Record number: 2, Textual support number: 2 CONT

Running through the bottom bracket shell, and anchored in place by cups and ball bearings allowing it to turn freely, is a spindle of forged steel to which the cranks are attached. When the rider stands on the pedals, the forces acting on the spindle are enormous, the weight and the strength of the rider being multiplied by the leverage of the cranks.  8, record 2, English, - spindle

Record number: 2, Textual support number: 3 CONT

The bottom bracket axle (or spindle) rotates on bearings inside the bottom bracket shell.  9, record 2, English, - spindle

Record number: 2, Textual support number: 1 OBS

The term "spindle" can be used to mean the stationary sheath around the axle or, as in this case, the actual revolving axle.  10, record 2, English, - spindle

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 DEF

Pièce cylindrique en acier sur laquelle sont vissés les cônes de roulement et autour de laquelle sont montées les manivelles.  4, record 2, French, - axe%20de%20p%C3%A9dalier

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 OBS

The bottom bracket bearings create a non-separable unit consisting of the shaft made of case-hardened steel and the cylindrical bush made of bearing steel. The raceways for two rows of balls are created by grinding directly on the shaft and in the cylindrical bush. The balls are arranged in light one-sided cages made of plastic. The bearings are filled with a quality grease which provides reliable lubrication during the life of the bearing.  1, record 3, English, - bottom%20bracket%20bearing

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 OBS

Roulement à bille ou à aiguilles, il permet de réduire considérablement les frottements sur un axe de rotation (pédalier, moyeux, direction).  2, record 3, French, - roulement%20de%20p%C3%A9dalier

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 DEF

The bearing assembly that allows the crankset to rotate in the bottom-bracket shell.  4, record 4, English, - bottom%20bracket

Record number: 4, Textual support number: 1 CONT

Down tube meets seat tube at bottom bracket. Pedals and pedal cranks hang from the bottom bracket.  5, record 4, English, - bottom%20bracket

Record 4,  Textual support,  French

Record number: 4, Textual support number: 1 DEF

Ensemble de roulements placé dans le boîtier de pédalier et sur lequel viennent se fixer les manivelles.  4, record 4, French, - jeu%20de%20p%C3%A9dalier

Record number: 4, Textual support number: 1 OBS

Les jeux de pédaliers modernes sont de type monobloc à cartouche.  4, record 4, French, - jeu%20de%20p%C3%A9dalier

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

The distance between a bicycle's bottom bracket and the ground.  2, record 5, English, - bottom%20bracket%20height

Record number: 5, Textual support number: 1 CONT

Generally bikes with a short wheelbase, steep angles, and high bottom brackets are designed for manoeuvrability and sprinting; those with a longer wheelbase and shallow angles are designed for touring and easy riding. Angles today run from about 70° to 74°, wheel bases from 38" to 42", and bottom bracket heights from 10½" to 11". Steep angles apparently give better steering, short wheelbases give both a sharper turn for a given front-wheel angle and easier acceleration when sprinting. High bottom brackets enable you to take a turn at maximum speed and keep on pedaling without scraping the inside pedal on the ground.  3, record 5, English, - bottom%20bracket%20height

Record number: 5, Textual support number: 2 CONT

The smaller frame's bottom bracket height is higher, not because the rider wants it that way, but because the low bottom bracket would cause the down tube to interfere with the front wheel.  4, record 5, English, - bottom%20bracket%20height

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 DEF

La distance de l'axe de pédalier (d'une bicyclette) au sol.  1, record 5, French, - hauteur%20du%20p%C3%A9dalier

Record 5,  Textual support,  Spanish