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Features of Z-Comet gear roll

Nissei's the Z-Comet the new high-precision form rolling machine delivers high precision tooth flank finishing. Finish rolling after your tooth length and feature requires accuracy after several micrometers.
Z-Comet produces the gear's tooth flank finish currently performed by shaving, grinding or sizing. Press rolling is superior to other precesses in terms of initial cost, running cost, cycle time and power-saving.

Z-Comet gear roll
Z-Comet gear roll
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Lead compensation function

Z-Comet enables correction of crowning taper and helix angles of roll gears without rebuilding the dies.
To do this Z-Comet is equipped with two axes and each spindle. Spindles move under B-axis and T-axis independently or in coordination. These axes are controlled by the CNC system.

Rigid workpiece support

This system enables highly accurate repetition and shorten said obtained with rigid workpiece support.
The gear spindle can be rotated think honestly with the two spindle during rolling for greater pitch accuracy.

Movie

Target Work

Process
Shaving, Gear Grinding, Sizing-press
Previous Process
Gear Hobbing, Sintering, Forging
Max. Outer Diameter
φ190mm
Max. Module
5

Spindle

Rated Spindle Revolution
85/min
Rated Rolling Pressure
545Nm
Die Hole Diameter
φ70mm, 76.2mm, 85mm (either)
Length
150mm, 200mm, 250mm (either)
Max. Outer Die Diameter
φ300mm

Powers of Pressing

Type
Ball Screw
Max. Rolling Pressure
97kN
Feed Speed
50mm/s
Max. Distance Between Centres
400mm

Please inquire by e-mail