Glossary of Terms
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 that 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.
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: The long screw that is driven by the end 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.
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 hold- ing tools.
Tool Post: The part of the compound rest that holds the tool holder.
Turret: A machine fixture that holds multiple tools and can be revolved and indexed to position.
Ways: The precision machined and flat tracks on which the carriage and tailstock slide.
G4003G Gunsmith's Lathe |