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Article | REF: BM5371 V3

Rolling bearings : common principles and data

Author: Pascal GUAY

Publication date: December 10, 2021

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8. Glossary

Path; groove, track

Raceway or track on which balls or rollers roll.

O layout; O layout

Preloaded assembly of two bearings in which the two contact angles form an O.

X assembly; X layout

Preloaded assembly of two bearings in which the two contact angles form an X.

Transverse moment; rocking moment

Moment exerted about an axis perpendicular to the axis of rotation of the bearings.

Precharge ; preload

Permanent internal axial force applied during bearing assembly to eliminate play.

Hertz pressure; Pression de Hertz

High contact pressure at log/track or roller/track contact.

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