Universal Building Set Gears

LEGO® Gear Supplementary Set

The Gear Supplementary Set 812-1 was released in 1974 to extend the Universal Building Set range with gears. It holds 101 pieces in just 14 types and no minifigures.

Set number
812
Year
1974
Pieces
101
Minifigures
0
Theme
Gears
Different parts
14
What can I build with it?

Parts list 14

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Description

Designed as an add-on

The name already tells you this set is not meant to be a model in its own right. It adds extra elements to the gear sets of 1974 so that more and larger constructions become possible. That is a different approach from a set with a finished model on the box: here the stock is what counts, and the ideas come from the builder. Anyone who already owns a basic set gets fresh material for experiments of their own.

Few types, many pieces

With 101 pieces in 14 different types the choice is deliberately narrow. That means several copies of each type in the box, which matters for designs that need repetition, such as drive trains with several gears or frames made from identical struts. The main colours are black, red, milky white and light grey. This mix looks more technical and calmer than the bright basic sets, and it suits mechanical builds very well indeed.

Who it is for

Collectors of older sets and builders who want to extend an existing gear set will get the most from it. On its own it is more of a study piece: you can see which parts were offered as extras back then and learn how the range was meant to work. If you are after a set with a finished model, one of the other gear sets from 1974 is the better choice. The contents are hard to display, but they are great for tinkering.

Checking and reusing parts

The parts list on this page names every type with its exact quantity, so you can quickly check a second-hand set for completeness. The “What can I build?” tool also shows which models result from these pieces, especially when combined with the rest of your stock. With supplementary sets that is worth a look, because individual types are often missing from other sets and can be brought together with very little effort.

FAQ

How many pieces are in the Gear Supplementary Set?
Set 812-1 consists of 101 pieces in 14 different types. There are no minifigures.
Can I build a model with it on its own?
It is meant as an add-on and does not offer its own model. It is most useful together with a basic gear set.
Which colours does it contain?
Mainly black, red, milky white and light grey.

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