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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)

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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