Hubs | McMaster-Carr

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1,947 Products

Electrical Power, Networking, and Controlling

Data Connection Hubs

Add USB, DisplayPort, or HDMI ports to your computer to connect multiple device

28 products

USB Extenders

Increase the reach of USB devices with a transmitter and receiver

3 products

Conduit Straights

Join conduit of different sizes and types, or attach conduit to a knockout in electrical boxes

18 products

Battery Chargers

Charge everything from large-cell to cordless tool to household batteries

3 products

Ethernet Switches

Expand your data network by connecting computers, printers, and servers

68 products

Power Over Ethernet Injectors

Power devices such as routers and wireless access points in areas lacking a power outlet

5 products

Power Transmission

Pulley and Sprocket Bushings

Mount between a rotating shaft and equipment to secure the shaft and reduce vibration

714 products

Bushing-Bore Hubs

Weld onto sprockets and pulleys to create a bushing mount

20 products

Shaft Couplings

Connect two shafts to transfer rotary motion from one to the other

207 products

Bore Reducers

Adapt the bore of a component to a smaller size for mounting on a shaft

31 products

Mounted Bearings

Ball, roller, and sleeve bearings ready to bolt in place

531 products

Ball Bearings

Create less friction than other bearings for use at high speeds

107 products

Measuring and Inspecting

Load Cell Junction Boxes

Join multiple load cells to combine their weight measurements

2 products