



Pololu Universal Aluminum Mounting Hub for 5mm Shaft, #4-40 Holes (2-Pack) Pololu 1203
Description
These universal aluminum mounting hubs allow you to mount custom wheels and mechanisms to 5 mm diameter motor shafts. The set includes two hubs, two #4-40 set screws for securing the hubs to motor shafts, and one 0.05″ Allen wrench for use with the set screws. Each hub has four threaded mounting holes for #4-40 screws (not included).
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5mm Pololu universal aluminum mounting hub on a stepper motor with a 5mm-diameter output shaft. |
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These universal mounting hubs are designed to work with most 5 mm diameter shafts, including round shafts and “D” shafts, such as those on our stepper motors. 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.
These hubs will work with most of our stepper motors (the ones with 5 mm shafts), and they also work with 60 mm, 70 mm, 80 mm, and 90 mm Pololu wheels (excluding the Multi-Hub versions; see the individual wheel pages for compatibility details).
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Pololu Wheels with 90, 80, 70, and 60 mm diameters in three colors: blue, red, and yellow. |
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Specifications
Parameter | Value |
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Size | 19 mm diameter × 5 mm thick |
Weight | 3.2 g |
Shaft diameter | 5 mm |
Mounting hole size | #4-40 |
Resources
Returns and Refunds Policy
Returns
We offer exchanges or refunds for defective products within 30 days from the date of purchase.
To be eligible for a return, your item must be in the same condition that you received it. You will also be required to return the item along with its original packaging. Flammable goods, such as batteries, are exempt from being returned.
To request for a refund or exchange, please send us an email at contact@makersupplies.sg with a copy of your receipt or proof of purchase, and provide details on the suspected defect.
If eligible for defect inspection, please send your items to the following address via trackable Singapore Post Tracked Package:
MAKERSUPPLIES SG PTE LTD
BLOCK 4009 ANG MO KIO AVENUE 10
#03-36 TECHPLACE I
SINGAPORE 569738
State your name, order number and return address on the back of the envelope. Postage costs for returned parcels will be borne by customers. If the product defect is found to be true upon inspection on our side, then we will initiate the exchange or refund process.
NOTE: Please do not send your item/s back before receiving an acknowledgement email from us.
Exchanges
Same-item exchanges will be approved on a case-by-case basis and are subjected to the following factors:
- Validity of the proof of purchase by the buyer
- Extent of the product defect
- Availability of stock for replacement
If you are eligible for an exchange, we will arrange for the exchanged item/s to be delivered to your address at no additional charge.
However, if no reasonable defect is found, you will be responsible for paying for your own re-shipping fees.
Depending on where you live, the time it may take for your exchanged product to reach you may vary.
Refunds
If an exchange for the defective item is not viable, we will offer a refund instead.
Upon approval, your refund will be processed to your credit card or original method of payment.
Late or missing refund
If you have not received a refund yet, please check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at contact@makersupplies.sg.
Sale items
Sale items cannot be refunded or exchanged.