Pololu Universal Aluminum Mounting Hub for 6mm Shaft, No. 4-40 Holes (2-Pack)

Overview

These universal mounting hubs are designed to work with most 6 mm diameter shafts, including round shafts and "D" shafts. Each of the two included hubs has six mounting holes for #4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors. The four included #4-40 hex set screws (two for each hub) allow secure coupling of shaft to hub, and a 0.05" hex wrench (often the smallest size in SAE Allen wrench sets) is included for use with the set screws. A dimension diagram of the hub is available below.

The picture to the right shows a hub with Pololu’s 19:1 metal gearmotor 37Dx52L mm and a Pololu stamped aluminum L-bracket for 37D mm metal gearmotors. These hubs will work with any of our 37D mm metal gearmotors, and they also work with 80 mm and 90 mm Pololu wheels.

37D mm gearmotor (without encoder) with L-bracket and 6mm universal mounting hub.

Black Pololu Wheel 90x10mm on a Pololu 37D mm Metal Gearmotor.

Specifications

Dimensions

Notes:

1 For a single hub only (without set screws).
2 This is also the size of the set screws.

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