Jet 894319 Features

• Spindle utilizes class 7210 (P4, ABEC-7) precision angular bearings for the industry leading spindle taper runout of 0.00012"
• Chromium Molybdenum spindle is fully hardened through a carbonizing treatment and is precisely ground to maintain strict tolerances
• Seamless, one-piece, steel quill is induction hardened and chromed for increased strength and precision ground for greater accuracy
• The Y and Z-Axis ways are hand scraped to a minimum of 16 points per square inch for greater oil retention and smooth movements
• Heat treated and polished lead screws are supported by thrust bearings ensuring smooth, incremental movements of the table under load
• The table and saddle backlash is controlled by an advanced double nut design that eliminates end-play for precisely controlled lateral movements
• A patented vari-disc key provides upt to ten times the wear resistance than aluminum or brass keys
• Variable speed pulleys are ground and multiplane dynamically balanced, reducing vibration and ensuring smooth speed transitions
• Ball bearing support of the motor shaft ensures proper loading, support and alignment for quiet, accurate operation at any speed
• Hardened and ground table provides a stable and accurate platform for milling a diverse variety of materials