grease cup

(Mechanical Engineering) a container that stores grease and feeds it through a small hole into a bearing

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

Grease cup

An assembly comprised of a small metal cup with internal threads that could be screwed down over a threaded base plate that was screwed into the housing of the mechanism to be greased (usually a bearing). The cup was packed with grease. When screwed down it forced the grease through a hole in the base plate and into the mechanism to be greased. Grease cups have largely been replaced by Zerk fittings and a grease gun that can force grease under pressure into the Zerk fitting and thence into the bearing. The means to inject grease under pressure using a gun and Zerk or comparable fitting was often called an Alemite system.

Mentioned in

Alemite

References in periodicals archive

Start the job by removing the burners, grates and grease cup. Use your shop vacuum to suck up all the loose crud from the bottom of the grill and any dirt and rust from the propane tank shelf.

Make your gas grill look like new

Push the greased inner bearing into place, then insert the grease cup, cover it with a block of wood to protect it, and tap it home.

Trailer bearing replacement: a dirty job, but somebody has to do it

Bearings that required what was called "hard oil" (grease to you and me) had a grease cup. The cup held a day or two's worth of grease and when the top was periodically turned down, grease was forced into the bearing.

From Alemite to Zerk: the history of the grease fitting

The ad bragged about the 36 ball bearings used throughout the machine as well as the method of lubricating them from oil reservoirs that needed filling just once a month: "No waste of time each day with 'greasing up'--not a grease cup on the tractor."

Bearofa of a tractor held tight to the ground

The round handle is a threaded grease cup. To be used, the vehicle is jacked up to relieve tension, the tool is pounded into the gap between the spring leaves, and the handle is turned to eject grease through the notch in the chisel-like portion.

Wanted: gadgets, gizmos and contraptions

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