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Pololu Universal Aluminum Mounting Hub for 4mm Shaft, M3 Holes (2-Pack)
These universal aluminum mounting hubs allow you to mount custom wheels and mechanisms to 4 mm diameter motor shafts. The set includes two hubs, two M3 set screws for securing the hubs to motor shafts, and one 1.5 mm Allen wrench for use with the set screws. Each hub has four threaded mounting holes for M3 screws (not included).
We have an assortment of universal mounting hubs available, spanning several shaft sizes and featuring mounting holes threaded for metric or imperial screws:
Alternatives available with variations in these parameter(s): shaft diameter mounting hole size Select variant…
Description | Specs (4) | Pictures (3) | Resources (2) | FAQs (0) | On the blog (0) | Distributors (58) |
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File downloads
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Pololu universal aluminum mounting hub for 4mm shaft, M3 holes mechanical drawing (34k pdf)
Printable mechanical drawing for the Pololu universal aluminum mounting hub for 4mm shaft, M3 holes.
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3D model of Pololu Universal Aluminum Mounting Hub for 4mm Shaft, M3 Holes (1MB step)
Coupon Discount
MD25C179: Get 27% off one or more items from category Motor Shaft Adapters (limit 3 per item). This offer is valid from 21 May 2025 to 28 May 2025.