Glossary / Engine

hub

14 Episode Mentions

Too Afraid to Ask

A wheel hub is the part in the middle of a car’s wheel that lets it spin and holds the wheel in place. It’s like the center of a spinning wheel.

Technical Definition

The hub is the central part of a wheel assembly where the wheel attaches to the axle. It houses bearings that allow the wheel to rotate smoothly and supports the weight of the vehicle.

Hear It Discussed

"Between, we go right between where the hub spins and the spindle itself, not between the knuckle on the vehicle."
Flushing Coolant and Other Things To Do Yourself At Home Under The Hood show 12:21

"Rough roads and hard cornering can crack the stud holes in the brake rotor, causing the wheel stud to separate from the hub and the wheels just fall off the truck as you're driving."
Tread Patterns - DWA! Podcast Ep. #935 Driving While Awesome 48:55

"That's how the rotor is attached to the inside face of the hub. Now, the rotor rusts to the hub."
Ron Ananian, The Car Doctor - November 29, 2025 - Hour 1 - When You Bring the Wrong Van… and Other Shop Adventures - (855)560-9900 Ron Ananian The Car Doctor 05:24