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Pololu Universal Aluminum Mounting Hub for 1/4″ (6.35mm) Shaft, #4-40 Holes (2-Pack)

Pololu item #: 1993
Brand: Pololu	supply outlook
Status: Active and Preferred

Free shipping in USA over $100

Price break	Unit price (US$)
1	9.95
5	9.15
25	8.42

Quantity:
backorders allowed

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 #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 six threaded mounting holes for #4-40 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…

Compare all products in Pololu Universal Mounting Hubs.

	Description		Specs (4)		Pictures (2)		Resources (2)		FAQs (0)		On the blog (3)		Distributors (29)

Dimensions

Size:	25.4 mm diameter × 9.2 mm thick
Weight:	6.7 g¹
Shaft diameter:	0.250 in
Mounting hole size:	#4-40²

Notes:

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

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