Edexcel GCSE Design and Technology · 1DT0
Specification 1.5.8 · Paper 1
Revise: Gear TypesUnlike a rack and pinion, they keep the output rotary: they change the direction of the shaft carrying that rotation.
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GCSE Design and Technology · key term
A mechanism consisting of a straight toothed rack and a circular gear called a pinion, which converts between rotary and linear movement.
Used by Edexcel and Eduqas
Specification 1.5.8 · Paper 1
Revise: Gear TypesUnlike a rack and pinion, they keep the output rotary: they change the direction of the shaft carrying that rotation.
Component 1
A mechanism in which a circular gear meshes with a straight toothed bar to convert rotary motion into linear motion, or vice versa.
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A rack and pinion combines a circular gear, the pinion, with a straight toothed bar, the rack. Their teeth mesh. As the pinion rotates, its teeth push the rack along a straight path.