Gears

Gear size

Machine tools (including presses) for working metal by forging, hammering or die stamping machine tools (including presses) for working metal by bending, folding, straightening, flattening, shearing, punching or notching presses for working metal or metal carbides, not specified above

Tool holders

Bars, rods and profiles of copper nickel base alloys (cupro nickel) or copper nickel zinc base alloys (nickel silver), n.e.s.

Cube Gears

Cobalt ores and concentrates

Knives with cutting blades, serrated or not (including pruning knives), other than knives of heading 8208, and blades therefor

Containing mainly zinc

Clasps and frames with clasps, incorporating locks

I don't oil their gears.

Waste

Forestry machinery

Of poultry keeping machinery or poultry incubators and brooders

Machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables machinery used in the milling industry or for the working of cereals or dried leguminous vegetables, other than farm type machinery

Machines for cleaning, sorting or grading seed, grain or dried leguminous vegetables

Aluminium structures (excluding prefabricated buildings of heading 9406) and parts of structures (for example, bridges and bridge sections, towers, lattice masts, roofs, roofing frameworks, doors and windows and their frames and thresholds for doors, balustrades, pillars and columns) aluminium plates, rods, profiles, tubes and the like, prepared for use in structures

Other slitting and cross cutting machines

Guillotines

Machines for making bags, sacks or envelopes

Machines for making cartons, boxes, cases, tubes, drums or similar containers, other than by moulding

And the gears work in water as well.

Display gears inside the cube

Poultry incubators and brooders

Hand pumps (excluding those of subheading 8413.11 or 8413.19)

Combined reel slitting and re reeling machines

For display counters, cabinets, show cases or the like

Sheets, strip and foil of a thickness (excluding any backing) not exceeding 0,2 mm

Chromium waste and scrap (excl. ash and residues containing chromium and chromium alloys containing  10 by weight of nickel)

We can make our model more compact by moving the gears closer together.

Elderly people, disabled people, and children are the most in danger of being crushed.

So, we have a motor here on the left, and it goes through a gear train.

Sewing machine needles with single flat shank

Other agricultural, horticultural, forestry, poultry keeping or bee keeping machinery, including germination plant fitted with mechanical or thermal equipment poultry incubators and brooders

Pumps for dispensing fuel or lubricants, of the type used in filling stations or in garages

Unsewn (perfect) binding machines

For household refrigerators or freezers

And the argument here would be that the wheels of evolution grind slowly, but they are inexorable.

Regulus consists of a total of sixty four cogs, a number that never varies.

And the argument here would be that the wheels of evolution grind slowly, but they are inexorable.

Sewing machine needles (other than with single flat shank)

There's my first exploded view and all the little pieces and the little worm drive and all that stuff.

Zhang applied his extensive knowledge of mechanics and gears in several of his inventions.

It is divided into four quarters of sixteen cogs, each ruled by a Secundus.

Now we can make the gears thicker and stronger, and we have differential gears.