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Pololu Universal Aluminum Mounting Hub for 1/4″ (6.35mm) Shaft, M3 Holes (2-Pack)
These universal aluminum mounting hubs allow you to mount custom wheels and mechanisms to 1/4 inch (6.35 mm) diameter motor shafts. The set includes two hubs, four 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 six 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 (2) | Resources (2) | FAQs (0) | On the blog (2) | Distributors (41) |
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Dimensions
Size: | 25.4 mm diameter × 9.2 mm thick |
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Weight: | 6.7 g1 |
Shaft diameter: | 0.250 in |
Mounting hole size: | M32 |
Notes:
Coupon Discount
INDEPENDENCE25PA: Get 21% off one or more items with brand Pololu and an active status (limit 5 per item). This offer is valid from 02 Jul 2025 to 07 Jul 2025.