gear train
Linked rotating cogs
A gear train is a system of interconnected gears that transmits motion and power from one rotating shaft to another.
The arrangement allows for changing speed, torque, or direction of rotation: The clock's gear train converts the mainspring's power into the slow movement of hands.
Complex gear trains appear in transmissions, industrial machinery, and precision instruments.
Toothed rotating machine part
- sprocketToothed wheel for chains
- pinionToothed wheel, small
- rackFrame for holding items
- differentialRelative difference between things
mesh · engagement · reduction · multiplication · backlash
Enclosed system of cogs
- transmissionSending of information
- drivetrainVehicle power transmission system
- clockworkSpring-driven gear system
- watch movementInternal timekeeping mechanism
lathe · mill · winch · hoist · conveyor · printing press · automobile · industrial machinery
Turning on an axis
- torqueRotational force measurement
- speedRate of motion
- power transmissionConveying mechanical energy elsewhere
- mechanical advantageForce output over input
drive · output · input · reversing · reduction ratio · step-up · step-down · freewheeling
Enamel-covered chewing structures
- shaftNarrow vertical passage
- axleShaft for wheel rotation
- bearingPosture or orientation
- bushingFriction-reducing sleeve insert
hub · keyway · spline · housing · casing · lubrication · oil · grease
Willingness to accept difference
- backlashStrong negative reaction
- clearancePermitted passage or approval
- alignmentCorrect relative positioning
- calibrationAdjusting for measurement accuracy
machining · grinding · lapping · inspection · quality control · wear · fatigue · noise
cogwheel
Toothed rotating machine part
differential · mesh · engagement · reduction · multiplication · backlash
gearbox
Enclosed system of cogs
- transmissionSending of information
- drivetrainVehicle power transmission system
- clockworkSpring-driven gear system
watch movement · lathe · mill · winch · hoist · conveyor · printing press · automobile · industrial machinery · robotics
rotation
Turning on an axis
- torqueRotational force measurement
- speedRate of motion
- power transmissionConveying mechanical energy elsewhere
mechanical advantage · drive · output · input · reversing · reduction ratio · step-up · step-down · freewheeling · overrunning
teeth
Enamel-covered chewing structures
bushing · hub · keyway · spline · housing · casing · lubrication · oil · grease · coupling
tolerance
Willingness to accept difference
- backlashStrong negative reaction
- clearancePermitted passage or approval
- alignmentCorrect relative positioning
calibration · machining · grinding · lapping · inspection · quality control · wear · fatigue · noise · vibration
- timekeepingclock, watch, watches, clocks, timer
- machineryengine, machinery, industrial machinery, motors, engines
- mechanicsforce, turning, rotation, momentum, velocity
- clock partswheel, mainspring, pendulum, escapement, dial
- clockworkescapement, mainspring, balance wheel, hairspring, movement
- compound machinesbicycle, scissors, can opener, pencil sharpener, sewing machine
gear traindirect drive
Transmission without intermediate gears
belt drive · chain drive · electric motor · torque converter
train, gear, training, trainer, gears, geared, gearing, undergear