Model G0949G (Mfd. Since 01/22)
-7-
The following is a list of common definitions, terms and phrases used throughout this manual as they relate
to this lathe and metalworking in general. Become familiar with these terms for assembling, adjusting or
operating this machine. Your safety is
VERY important to us at Grizzly!
Arbor: A machine shaft that supports a cutting
tool.
Backlash: Wear in a screw or gear mechanism
that may result in slippage, vibration, and loss
of tolerance.
Carriage: A main housing that consists of the
apron and the saddle.
Cross Slide: A fixture attached to the lathe car-
riage that holds the compound rest and can be
moved in and out.
Compound Rest: A fixture attached to the cross
slide that holds the tool holder and can be
moved in and out.
Cutting Speed: The distance a point on a cutter
moves in one minute, expressed in meters or
feet per minute.
Dial Indicator: An instrument used in setup
and inspection work that shows on a dial the
amount of error in size or alignment of a part.
Facing: In lathe work, cutting across the end of
a workpiece, usually to machine a flat surface.
Feed: The movement of a cutting tool into a
workpiece.
Fixture: A device that securely holds the
workpiece in place during cutting operation
as opposed to a jig which is used to hold and
guide a workpiece through an operation.
Gib: A tapered wedge located along a sliding
member to take up wear or to ensure a proper
fit.
Headstock: The major lathe component that
houses the spindle and motor drive system to
turn the workpiece.
Lathe Center: A lathe accessory with a 60°
point which is inserted into the headstock or
tailstock of the lathe and is used to support the
workpiece.
Leadscrew: Lathe—The long screw that is driven
by the change gears and supplies power to the
carriage.
Saddle: The upper portion of carriage that rides
on the lathe ways and supports the cross feed
and the follow rest.
Spindle: The revolving shaft that holds and drives
the workpiece or cutting tool.
Tailstock: A moveable fixture opposite of the
headstock on a lathe that has a spindle used to
support one end of a workpiece and for holding
tools.
Tool Post: The part of the compound rest that
holds the tool holder.
Turret: Lathe—A machine fixture that holds mul-
tiple tools and can be revolved and indexed to
position.
Ways: The precision machined and flat tracks
on a lathe on which the carriage and tailstock
slide.
Glossary of Terms
Summary of Contents for G0949G
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