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The
preloaded crossed roller bearings and ways on the wheel head and the
longitudinal slides requires low friction movement while giving
precision placement and repeatability. This superior construction allows
smooth operation while eliminating either table or wheel head lifting. |
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The wheel
head slide is controlled by precision ground ball screw with a preloaded
anti-backlash double nut. Ways and screw are completely covered by
"U" shaped accordion covers.
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The
eccentric repositioning attachment allows the grinding wheel spindle
movement up to 4" toward the center of the column. This provides
more room for the operator when the spindle is turned to the 90 degree
mark on the column or at a right angle to the table grinder. |
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8" in diameter and mounted in a precision ground sleeve. Height
adjustment is made by 1-1/8" - 5 pitch precision ground lead and
8" graduated hand wheels. |
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The
grinding wheel spindle runs on four class 7 precision bearings in
matched pairs. Speeds of 3,800 and 6,400 RPM are furnished as standard
with poly flex belt drive. The spindle has 25 degrees tilting
adjustments on either side of horizontal and swivels 360 degrees. |
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The Model 3000 is furnished
with a gearbox for longitudinal travel feed. This feed is provided by
ground lead screws and a graduated 8" hand wheel for precision
table movement; and by rack and pinion that provides for quick table
travel to facilitate wheel dressing and production type operations.
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Hand wheels are
made of solid cast iron construction and are 8" in diameter. The
slip rings with standard graduations of .0005 divisions allow for
precision "zeroing out" of the table to the grinding wheel
spindle. |
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A Sony 2 axis digital
readout system with display panel for cross and longitudinal feeds can
be provided. Displays are also available with angular readouts in .1
degree increments on the graduated column.
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