Do you have a print for the bolt hole pattern of this hub (the 6 tapped holes)?

https://www.pololu.com/file/0J161/1083-6mm-4-40-hub-dimensions.pdf

Do these function as non-moving bearings to support a long 6mm shaft? How do these work?

These are just aluminum machined hubs. The Hub fits on a 6mm shaft and then gets tighten down to that shaft with a set screw. There are threaded holes in the hub so you can attach things to it if you want or need to. There are no bearing. I used mine to attach to a motor with a 6mm shaft then bolted on a piece to the hub that then turned a head on a Halloween prop. Almost like a old time steam train wheel.

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Pololu 1083 Universal Aluminum MOUNTING HUB for 6mm Shaft Pair, 4-40 Holes

Product ID: 9060931

Details

Brand
Pololu
Color
Black Silver
Hole Count
4
Item Weight
9.07 g
Material
Aluminum

🔩6 mounting holes for 4-40 screws

⚙️6mm shaft compatibility

🛠️Durable aluminum construction

Description

⚙️ Elevate your motor game with the ultimate mounting hub—because your projects deserve precision and power!

CUSTOMIZABLE MOUNTING - Six precision 4-40 threaded holes let you attach custom wheels or mechanisms effortlessly.
PRECISION ENGINEERING - Wide threaded flange distributes force evenly, preventing slippage and ensuring reliable performance.
ROBUST ALUMINUM BUILD - Lightweight yet tough aluminum ensures long-lasting durability under high-stress conditions.
UNIVERSAL 6 MM SHAFT FIT - Seamlessly works with both round and D-shaped shafts for ultimate versatility.
SECURE DUAL SET SCREW DESIGN - Enhanced torque resistance with both screws positioned on the flat shaft side for maximum grip.

The Pololu 1083 Universal Aluminum Mounting Hub is engineered for 6mm shafts, including round and D-shaped types, featuring six 4-40 threaded mounting holes. Crafted from durable aluminum, it offers a superior dual set screw design on a wide flange to maximize torque resistance and prevent slippage, making it ideal for high-performance motor applications and custom mechanical assemblies.

Specifications

ASIN	B00B887FX8
Best Sellers Rank	#452,183 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #52 in Linear Motion Bushing Shafts
Brand	Pololu
Brand Name	Pololu
Color	Black, Silver
Customer Reviews	4.5 out of 5 stars 416 Reviews
Hole Count	4
Item Weight	9.07 g
Manufacturer	Pololu1231
Material	Aluminum
Material Type	Aluminum
Operation Mode	Manual
Part Number	43234-692
Pin Hole Diameter	0.16 inches
Sheet Count	40
UPC	885367345663 885874565783
Unit Count	1 Count

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