spiral gear: meaning, definition, pronunciation and examples
LowTechnical
Quick answer
What does “spiral gear” mean?
A gear with teeth cut at an angle to its axis, forming a helical or spiral pattern around the gear.
Audio
Pronunciation
Definition
Meaning and Definition
A gear with teeth cut at an angle to its axis, forming a helical or spiral pattern around the gear.
A type of mechanical gear used to transmit motion and power between non-parallel, intersecting shafts, commonly at a 90-degree angle. Known for smoother and quieter operation compared to straight-cut gears.
Dialectal Variation
British vs American Usage
Differences
No significant difference in terminology. Both dialects use 'spiral gear' predominantly in engineering contexts.
Connotations
Purely technical with no regional connotative differences.
Frequency
Equally low-frequency in both dialects, confined to mechanical engineering, automotive, and manufacturing fields.
Grammar
How to Use “spiral gear” in a Sentence
The [machine] uses a spiral gear to [function].A spiral gear [verbs] with another gear at a right angle.[Noun] is driven by a spiral gear.Vocabulary
Collocations
Examples
Examples of “spiral gear” in a Sentence
verb
British English
- The design specifies to spiral-gear the output to the vertical shaft.
- We need to spiral-gear these two axles together.
American English
- The mechanism spiral-gears the drive to the rear wheels.
- They decided to spiral-gear the connection for quieter operation.
adverb
British English
- [Not standardly used as an adverb]
American English
- [Not standardly used as an adverb]
adjective
British English
- The spiral-gear mechanism requires precise alignment.
- We ordered a new spiral-gear assembly.
American English
- The spiral-gear design reduces noise significantly.
- Check the spiral-gear setup for wear.
Usage
Meaning in Context
Business
Rare, except in procurement or sales contexts for industrial components.
Academic
Used in engineering textbooks, theses, and papers on mechanical design and power transmission.
Everyday
Virtually never used in everyday conversation.
Technical
The primary context. Used in mechanical engineering, automotive design (differentials), robotics, and machine tool manufacturing.
Vocabulary
Synonyms of “spiral gear”
Vocabulary
Antonyms of “spiral gear”
Watch out
Common Mistakes When Using “spiral gear”
- Using 'spiral gear' to refer to any gear with angled teeth, including helical gears.
- Confusing spiral gears (for intersecting shafts) with worm gears (for non-intersecting, perpendicular shafts).
- Misspelling as 'spinal gear'.
FAQ
Frequently Asked Questions
Spiral gears have curved teeth that engage more gradually, leading to smoother operation, reduced noise, and the ability to handle higher loads.
No. Spiral gears (spiral bevel gears) connect intersecting shafts (usually 90°). Helical gears connect parallel shafts. The 'spiral' refers to the curved teeth on a conical gear body.
Common applications include the differential in automobiles (to turn power 90° to the wheels), hand drills, marine propulsion systems, and industrial milling machines.
No, it is a highly specialised technical term used almost exclusively in mechanical engineering, automotive, and related manufacturing industries.
A gear with teeth cut at an angle to its axis, forming a helical or spiral pattern around the gear.
Spiral gear is usually technical in register.
Spiral gear: in British English it is pronounced /ˈspaɪərəl ɡɪə/, and in American English it is pronounced /ˈspaɪrəl ɡɪr/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Imagine a spiral staircase connecting two floors at a right angle; a spiral gear connects two shafts at a right angle with teeth that spiral like the steps.
Conceptual Metaphor
A MESHED, ANGLED CONNECTION for transferring rotational force.
Practice
Quiz
What is the primary functional characteristic of a spiral gear?