12mm Hex Wheel Adapter for 6mm Shaft (2-Pack)

These 20 mm long aluminium adapters convert a 6 mm diameter shaft to a 12 mm hex shaft that is compatible with many common hobby RC wheels.


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Our Code: SKU-003355

Supplier Link: [Pololu MPN:2686]



These light-weight aluminium shaft adapters convert a typical motor output shaft into a 12 mm hex shaft that is compatible with many common hobby RC wheels, such as the Dagu Wild Thumper Wheels. The side of each adaptor that mounts to the wheel contains a hole tapped for M4 screws, and the other side of the adaptor mounts to a motor shaft with two M3 set screws. This set includes a pair of adapters, two 8 mm M4 screws, four M3 set screws, and one 1.5 mm Allen wrench for use with the set screws.

The adapters are available in the following versions:

Details for item #2686

12mm Hex Wheel Adapter for 6mm Shaft connecting a Wild Thumper Wheel to a 37D mm Metal Gearmotor

This version of the 12 mm hex adaptor is 20 mm in length and designed to work with 6 mm diameter output shafts, including round and “D” shafts. It works well with our 37D mm metal gearmotors, as shown in the picture above. The wheel shown in the above picture is a 120×60 mm Dagu Wild Thumper Wheel.

The diagram below shows the dimensions of this shaft adaptor and is also available as a downloadable PDF (134k pdf)

Dimension diagram of the Pololu 12mm Hex Wheel Adapter for 6mm Shaft. Units are mm over [inches]



Size: 12 mm hex × 20 mm length
Length: 20 mm
Weight: 5.4 g1
Shaft diameter: 6 mm

General specifications

Style: short


For a single adaptor only (without set screws or mounting screw).


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