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U

U-bolt

A frame-body attachment that goes over a sub-frame attached to the vehicle body and down both sides of the frame rail before being clamped at the bottom flange of the rail.


ultra-capacitor

A type of high-capacity and high-energy density capacitors.


UltraShift

Eaton’s two-pedal AMT; completely shift by wire with no clutch pedal.


unconscious bias

Means that you are predisposed to think a certain way about a subject or a person.


undercuts

The smallest diameter in a spool; used to create a flow path when the valve is open.


underdrive ratio

Any ratio that decreases output speed while increasing output torque. Also known as a gear reduction.


underslung

A suspension system where the leaf spring is mounted under the axle.


undertread

The depth of the area between the bottom of the original tread grooves and the top of the uppermost belt.


Unified Diagnostic Service (UDS)

A global electronic service and communication protocol for mechatronic devices that has encrypted security features to prevent malicious network hacking.


Unified Thread Standard (UTS)

A standard outlining the properties and characteristics of fasteners using imperial units of measurement.



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