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A mechanical coupling in which two shafts are connected through two gear hubs interconnected by a toothed sleeve.

Related Terms

QUICK DISCONNECT COUPLING

A coupling which can quickly join or separate lines.

A.G.M.A.

Abbreviation for 'American Gear Manufacturers Associations', an organization serving the gear industry.

COMPRESSOR

A device which converts mechanical force and motion into pneumatic flow power.

ALTERNATOR

A device which converts mechanical energy, into alternating current.

FATIGUE PLATELETS

Normal particles between 20 and 40 microns found in gear box and rolling element bearing oil samples observed by analytical ferrography. A sudden increase in the size and quantity of these particles indicates excessive wear.

FATIGUE CHUNKS

Thick three-dimensional particles exceeding 50 microns indicating severe wear of gear teeth.

HYPOID GEAR LUBRICANT

A gear lubricant having extreme pressure characteristics for use with a hypoid type of gear as in the differential of an automobile.

BRINELLING

Permanent deformation of the bearing surfaces where the rollers (or balls) contact the races. Brinelling results from excessive load or impact on stationary bearings. It is a form of mechanical damage in which metal is displaced or upset without attrition.

PUMP

A device which converts mechanical force and motion into hydraulic fluid power.

FILTRATION

The physical or mechanical process of separating insoluble particulate matter from a fluid, such as air or liquid, by passing the fluid through a filter medium that will not allow the particulates to pass through it.
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