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Revision A
Term
Definition
Soft joint
A joint made with use of a fastener where joining materials are compressible or
experience relaxation over a period of time
SP rotary disc header
Rotary disc header that connects to a self-propelled machine (windrower, etc.)
Tension
Axial load placed on a bolt or screw, usually measured in Newtons (N) or pounds (lb.)
TFFT
Turns from finger tight
Torque
The product of a force X lever arm length, usually measured in Newton-meters (Nm) or
foot-pounds (lbf
∙
ft)
Torque angle
A tightening procedure where fitting is assembled to a precondition (finger tight) and then
nut is turned farther a number of degrees to achieve its final position
Torque-tension
The relationship between assembly torque applied to a piece of hardware and axial load it
induces in bolt or screw
Washer
A thin cylinder with a hole or slot located in the center that is to be used as a spacer, load
distribution element, or locking mechanism
Windrower
Power unit for a header