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Pololu Universal Aluminum Mounting Hub for 4mm Shaft, #4-40 Holes (2-Pack)

SKU: POLOLU-1081

$8.74 AUD, inc GST
$7.95 AUD, exc GST

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Pololu Universal Aluminum Mounting Hub for 4mm Shaft, #4-40 Holes (2-Pack)
8.74 AUD

SKU: POLOLU-1081

$8.74 AUD, inc GST
$7.95 AUD, exc GST
3 reviews 0 5 4.7
In stock, ships today if ordered before 2PM
Delivered by Mon, 23rd of Oct
Shipping Offer

These universal mounting hubs are designed to work with most 4 mm diameter shafts, including round shafts, and “D” shafts. Each of the two included hubs has four mounting holes for #4-40 screws (not included), letting you mount custom wheels or mechanisms to your motors. The two included #4-40 hex set screws (one 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 under the resources tab.

The picture to the right shows a hub with Pololu’s 25:1 metal gearmotor 20Dx44L mm and a Pololu 20D mm metal gearmotor bracket. These hubs will work with any Pololu 20D mm metal gearmotor or 25D mm metal gearmotor, and they also work with 60 mm, 70 mm, 80 mm, and 90 mm Pololu wheels.

Pololu 20D mm gearmotor with bracket and hub.
Pololu 60×8mm wheel on a Pololu 25D mm metal gearmotor.

Pololu wheels with 90, 80, 70, and 60mm diameters in three colors: blue, red, and yellow.

This product is listed in:

Documentation and Resources:
  • The Maker Revolution
  • The Maker Revolution celebrates the creation of new devices and the modification of existing ones - the transition from a consumer buying goods to eventually having a major part in their creation. The Maker Revolution places strong emphasis on free (...

Product Comments


Customer Reviews

  1. Review by Garth verified purchaser
    Rating
    100

    These are fantastic, excellent quality (Posted on 6/09/2017)

  2. Review by stephen verified purchaser
    Rating
    80

    Strong and lightweight. Fit nicely onto 4mm Pololu motor shaft.

    Beware - the only screws included are those to secure the hub to the motor shaft. I live in a regional city and could not find #4-40 screws anywhere. In hindsight I should have chosen the equivalent product with M3 holes. M3 screws are common in hardware stores. (Posted on 11/01/2017)

  3. Review by Pete verified purchaser
    Rating
    100

    Good shipping, works well (Posted on 23/05/2016)

We deliver Australia-wide with these options:

  • $3 for Small Items (4-6 days, not tracked, only available on selected small items)
  • $6.95 for Standard Post (2-4 days, tracked)
  • $8.32 for Express Post (1-2 days, tracked)
  • Pickup - Free! Only available to customers who live in the Newcastle region (only after we email you to notify your order is ready)

International Orders - the following rates are for New Zealand and will vary for other countries:

  • $11.49 for Pack and Track (3+ days, tracked)
  • $16.50 for Express International (2-5 days, tracked)

If you order lots of gear, the postage amount might increment based on the weight of your order.

Our physical address:

Unit 18, 132 Garden Grove Parade
Adamstown
NSW, 2289
Australia

Please checkout our customer service page if you have other frequently asked questions such as "do we do purchase orders" (yes!) or "are prices GST inclusive" (yes they are!). We're here to help - get in touch with us to talk shop.