hydraulic coupling: meaning, definition, pronunciation and examples
Low (technical)Technical / Engineering
Quick answer
What does “hydraulic coupling” mean?
A mechanical device that uses a fluid to transmit rotational power between a driving and a driven shaft, often allowing for slip and smooth engagement.
Audio
Pronunciation
Definition
Meaning and Definition
A mechanical device that uses a fluid to transmit rotational power between a driving and a driven shaft, often allowing for slip and smooth engagement.
The device itself as a component in machinery; more broadly, a system or principle of transferring force or motion via an incompressible fluid.
Dialectal Variation
British vs American Usage
Differences
No significant differences in meaning or term used. Spelling remains the same. The component may simply be called a 'coupling' in context.
Connotations
Purely technical, with no cultural connotations in either variant.
Frequency
Equally rare outside engineering contexts in both regions.
Grammar
How to Use “hydraulic coupling” in a Sentence
[Verb] + hydraulic coupling: replace/fit/design/specify a hydraulic coupling.[Adjective] + hydraulic coupling: flexible/failed/standard/industrial hydraulic coupling.Vocabulary
Collocations
Examples
Examples of “hydraulic coupling” in a Sentence
verb
British English
- The system is designed to couple the shafts hydraulically.
- The engineer hydraulically coupled the motor to the pump.
American English
- The system is designed to couple the shafts hydraulically.
- We need to hydraulically couple the drive units.
adverb
British English
- The power is transferred hydraulically-coupling-wise.
- [No standard adverbial form; 'hydraulically' is used for the method.]
American English
- The connection is made hydraulically, via a coupling.
- [No standard adverbial form; 'hydraulically' is used for the method.]
adjective
British English
- The hydraulic-coupling principle is key to this machinery's smooth operation.
- He is a hydraulic-coupling specialist.
American English
- The hydraulic coupling principle is fundamental to the system's design.
- She works in hydraulic coupling design.
Usage
Meaning in Context
Business
Rare; might appear in procurement or maintenance reports for industrial equipment.
Academic
Common in mechanical engineering, automotive engineering, and industrial design textbooks and papers.
Everyday
Virtually never used.
Technical
The primary register. Used in manuals, specifications, and technical discussions about power transmission systems.
Vocabulary
Synonyms of “hydraulic coupling”
Strong
Neutral
Weak
Vocabulary
Antonyms of “hydraulic coupling”
Watch out
Common Mistakes When Using “hydraulic coupling”
- Pronouncing 'hydraulic' as /haɪˈdrɔːlɪk/ (incorrect vowel).
- Using it as an uncountable noun (e.g., 'some hydraulic coupling').
- Confusing it with a 'hydraulic clutch' which is a controlled engagement device.
FAQ
Frequently Asked Questions
No, they are related but different. A basic hydraulic coupling only transmits torque, while a torque converter can multiply torque using a stator.
No, a basic hydraulic coupling allows for some slip, so the input and output speeds are not perfectly synchronized.
Usually a specialized hydraulic oil or sometimes turbine oil, chosen for its viscosity, lubrication, and thermal properties.
The main advantages are smooth start-up, torsional vibration damping, and overload protection, as the coupling will slip under excessive load.
A mechanical device that uses a fluid to transmit rotational power between a driving and a driven shaft, often allowing for slip and smooth engagement.
Hydraulic coupling is usually technical / engineering in register.
Hydraulic coupling: in British English it is pronounced /haɪˈdrɒlɪk ˈkʌplɪŋ/, and in American English it is pronounced /haɪˈdrɑːlɪk ˈkʌplɪŋ/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “[No common idioms for this technical term]”
Learning
Memory Aids
Mnemonic
Think of a 'high-draw-lick' (hydraulic) 'cup-link' (coupling): a cup that links two shafts using liquid you draw high pressure from.
Conceptual Metaphor
A LIQUID BRIDGE or a LIQUID CUSHION FOR POWER.
Practice
Quiz
What is the primary medium of power transmission in a hydraulic coupling?